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Alloy 302 is a variations of the 18% chromium / 8% nickel austenitic alloy, which is the most familiar and the most frequently used in the stainless steel family. Alloy 302 is a slightly higher carbon version of 304, often found in strip and wire forms. It is a tough, ductile grade that demonstrates comparable corrosion resistance, is non-magnetic, and is not hardenable by heat treatment. Alloy 302 is usually used in its annealed condition and has a high ease of fabrication and formability. Specifications: UNS S30200 Applications: Although many applications have shifted to 304 and 304L due to advances in melting technology, availability, and cost, Alloy 302 is still used in a variety of industries. Some examples include: Stamping Spinning Wire forming Formed into all types of washers, springs, screens, and cables Food and beverage industry Pressure containing applications Sanitary or cryogenic applications Some examples of products that are partially or completely constructed of 302 include: Blenders Counters Dish racks Dishwashers Refrigerators Washing machines Standards: ASTM/ASME: UNS S30200 EURONORM: FeMi35Cr20Cu4Mo2 DIN: 2.4660 Corrosion Resistance Provides useful resistance to corrosion on a wide range of moderately oxidizing to moderately reducing environments The 18 -19% of chromium which this alloy contains provides resistance to oxidizing environments such as dilute nitric acid. Resistant to moderately aggressive organic acids such as acetic, and reducing acids such as phosphoric. The 9-11% of nickel contained in this alloy provides resistance to moderately reducing environments. Machinability Slow speeds and high feeds will overcome this alloy’s tendency to work-harden Due to gummy chips, it is recommended that chip breakers are used on all tooling Weldability Can best be welded by resistance or shielded fusion methods Post weld annealing dissolves the chromium carbide and is recommended for maximum resistance to intergranular attack Hot Working Uniform heating to 2100oF will allow this allow to be forged, upset and headed successfully Do not work below 1700oF Cold Working Will dramatically increase the hardness of this material; however, it is quite ductile and may readily be drawn, spun and upset Causes alloy 302 to become magnetic Post-fabrication annealing is necessary to retain maximum corrosion resistance and a non-magnetic condition Chemical Properties:CMnSiPSCrNiN302max: 0.15max:2.0max: 0.75max: 0.045max: 0.03min: 17.0 max: 19.0min: 8.0 max: 10.0max: 0.10 Mechanical Properties:GradeTensile Strength ksi (min)Yield Strength 0.2% ksi (min)Elongation %Hardness (Rockwell B) MAX30275304092 Physical Properties: Density lbm/in3Thermal Conductivity (BTU/h ft. °F)Electrical Resistivity (in x 10-6)Modulus of Elasticity (psi x 106Coefficient of Thermal Expansion (in/in)/ °F x 10-6Specific Heat (BTU/lb/ °F)Melting Range (°F)at 68°F: 0.2859.4 at 212°F72.0 at 70°F289.6 at 32 – 212°F0.1200 at 32°F to 212°F2500 to 259012.4 at 932 °F10.2 at 32 – 1000°F10.4 at 32 – 1500°F

Alloy  304L a T-300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel. Type 304L has a carbon maximum is 0.030. It is the standard “18/8 stainless” that is commonly found in pans and cooking tools. Alloys 304L is the most versatile and widely used alloy in the stainless steel family. Ideal for a wide variety of home and commercial applications, Alloys 304L exhibits excellent corrosion resistance and has a high ease of fabrication, outstanding formability. The austenitic stainless steels are also considered to be the most weldable of the high-alloy steels and can be welded by all fusion and resistance welding processes. Specifications:  UNS S30403 Applications: Alloy 304L Stainless Steel is used in a wide variety of home and commercial applications, including: Food processing equipment, particularly in beer brewing, milk processing, and wine making Kitchen benches, sinks, troughs, equipment, and appliances Architectural trim and molding Automotive and aerospace structural use Construction material in large buildings Chemical containers, including for transport Heat exchangers Nuts, bolts, screws, and other fasteners in the marine environment Dyeing industry Woven or welded screens for mining, quarrying & water filtration Standards: ASTM/ASME:  S30403 EURONORM:  1.4303 AFNOR:  Z2 CN 18.10 DIN:  X2 CrNi 19 11 Resistance Corrosion Resistance: Resistance to corrosion in oxidizing environments is a result of the 18 to 19% chromium that the 304 alloys contain. Resistance to moderately aggressive organic acids is a result of the 9 to 11% nickel that the 304 alloys contain. At times, alloy 304L may show a lower corrosion rate than the higher carbon Alloy 304; otherwise, the 304, 304L, and 304H may be considered to perform uniformly in most corrosive environments. Alloy 304L is preferred for use in environments sufficiently corrosive to cause intergranular corrosion of welds and heat-affected zones on susceptible alloys. Heat Resistance: Good oxidation resistance in intermittent service to 1600°F and in continuous service to 1690°F. Continuous use of 304 in the 800-1580°F range is not recommended if subsequent aqueous corrosion resistance is important. Grade 304L is more resistant to carbide precipitation and can be heated into the above temperature range. Processing Properties of 304 Alloy Welding Characteristics: Excellent welding properties; post-weld annealing is not required when welding thin sections. Two important considerations in producing weld joints in the austenitic stainless steels are: preservation of corrosion resistance avoidance of cracking Processing – Hot Forming: To forge, heat uniformity to 2100 / 2300 °F Do not forge below 1700 °F Forging can be air cooled without danger of cracking Processing – Cold Forming: Its austenitic structure allows it to be deep-drawn without intermediate annealing, Making this the stainless steel grade of choice in the manufacturing of sinks, hollow-ware and saucepans. These grades work harden rapidly. To relieve stresses produced in severe forming or spinning, parts should be full annealed or stress relief annealed as soon as possible after forming. Machinability: The use of chip breakers is advised since the chips can be stringy. Stainless steel work harden rapidly, heavy positive feeds, sharp tooling, and a rigid set-up should be used.of cut below the work-hardened layer resulting from the previous passes. Properties Chemical Properties:CMnSiPSCrNiN304L0.03max2.0max0.75max0.45max0.03maxmin: 18.0 max: 20.0min: 8.0 max: 12.00.10 max Mechanical Properties:GradeTensile Strength ksi (min)Yield Strength 0.2% ksi (min)Elongation %Hardness (Brinell) MAXHardness (Rockwell B) MAX304L70254020192 Physical Properties: Density lbm/in3Thermal Conductivity (BTU/h ft. °F)Electrical Resistivity (in x 10-6)Modulus of Elasticity (psi x 106Coefficient of Thermal Expansion (in/in)/ °F x 10-6Specific Heat (BTU/lb/ °F)Melting Range (°F)at 68°F: 0.2859.4 at 212°F28.3 at 68°F289.4 at 32 – 212°F0.1200 at 68°F to 212°F2500 to 259012.4 at 932 °F39.4 at 752°F10.2 at 32 – 1000°F49.6 at 1652 °F10.4 at 32 – 1500°F

wilsonpipeline Stainless inventory includes stainless steel 304H (UNS S30409) in, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipes. Specialty testing can be utilized to upgrade sheet and other 304 stainless products with a .04 min carbon. Overview General Properties Alloy 304 is a T-300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel with a maximum of 0.08% carbon. It is the standard “18/8 stainless” that is commonly found in pans and cooking tools. Alloy 304 is the most versatile and widely used alloy in the stainless steel family. It may be used for a wide variety of home and commercial applications and exhibits excellent corrosion resistance, has a high ease of fabrication, outstanding formability, and tremendous strength. The austenitic stainless steels are also considered to be the most weldable of the high-alloy steels and can be welded by all fusion and resistance welding processes. Due to its controlled carbon content of 0.04 to 0.10, Alloy 304H provides improved high temperature strength when exposed to temperatures above 800oF. Alloy 304H also has greater short term and long term creep strength than Alloy 304L at temperatures above 500oC and is more resistant to sensitization than Alloy 304L. Applications Alloy 304H is often used as a material of construction up to about 1500oF. Some examples of applications that Alloy 304H is commonly used for includes: Most commonly used in petroleum refineries Boilers Heat exchangers Condensers Pipelines Cooling towers Steam exhausts Electric generation plants On occasion will be found in fertilizer and chemical plants Standards – Alloy 304H ASTM/ASME:  UNS S30409 EURONORM: FeMi35Cr20Cu4Mo2 DIN: 2.4660 Resistance Heat Resistance Good oxidation resistance in intermittent service to 870O C and in continuous service to 920O C Continuous use of Alloy 304 in the 425-860°C range is not recommended if subsequent aqueous corrosion resistance is important Alloy 304H has higher strength at elevated temperatures so is often used for structural and pressure-containing applications at temperatures above about 500°C and up to about 800°C Alloy 304H will become sensitized in the temperature range of 425-860°C; this is not a problem for high temperature applications, but will result in reduced aqueous corrosion resistance. Corrosion Resistance Resistance to corrosion in oxidizing environments is a result from the 18 to 19% chromium that the 304 alloys contain Resistance to moderately aggressive organic acids is a result from the 9 to 11% nickel that the 304 alloys contain At times, Alloy 304L may show a lower corrosion rate than the higher carbon Alloy 304; otherwise, the 304, 304L, and 304H alloys may be considered to perform uniformly in most corrosive environments. Processing Welding Characteristics: readily welded by most standard processes. may be necessary to anneal the plate after welding annealing helps restore corrosion resistance lost by the sensitization. Processing – Hot Forming: Working tempertarues of 1652-2102 degrees F are recommended meterial should be annealed at 1900 degrees F material should be water quenched or or rapidly cooled Processing – Cold Forming: alloy is quite ductile and forms easily helps increase strength and hardness of alloy may leave alloy slightly magnetic Machineability: subject to work hardening during deformation subject to chip breaking best results achieved through slower speed, heavier feeds, good lubrication, and sharp tooling Properties Chemical Properties:%CrNiCSiMnPSN304Hmin: 18.0 max:20.0min: 8.0 max: 10.5min: 0.04 max:0.100.75 max2.0 max0.45 max0.03 max0.10 max Mechanical Properties:GradeTensile Strength ksi (min.)Yield Strength 0.2% Offset ksi (min.)Elongation – % in 50 mm (min.)Hardness (Brinell) MAXHardness (Rockwell B) MAX304H75304020192 Physical Properties:Denstiy lbm/in3Coefficient of Thermal Expansion (min/in)-°FThermal Conductivity BTU/hr-ft-°FSpecific Heat BTU/lbm -°FModules of Elasticity (annealed)2-psiat 68 °Fat 68 – 212°Fat 68 – 1600°Fat 212°Fat 932°Fat 32 – 212°Fin tension (E)0.2859.211.09.412.40.1229 x 106

wilsonpipeline Stainless inventory includes Stainless Steel 316/316L (UNS S31600/S31603), in Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. Generally, this grade is dual-certified to meet both 316 and 316L. Alloy 316/316L is ideally suited for applications requiring corrosion resistance superior to Type 304 and has good elevated temperature strength. Overview General Properties Alloy 316/316L is molybdenum-bearing austenitic stainless steel. The higher nickel and molybdenum content in this grade allows it to demonstrate better overall corrosion resistant properties than 304, especially with regard to pitting and crevice corrosion in chloride environments. In addition, Alloy 316/ 316L provides excellent elevated temperature tensile, creep and stress-rupture strengths, as well as outstanding formability and weldability. 316L is the lower carbon version of 316 and is immune from sensitization; therefore, it is very frequently used in heavy gauge welded components. Specifications: UNS S31600/S31603 Applications: Food preparation equipment, especially in chloride environments Chemical processing, equipment Laboratory benches and equipment Rubber, plastics, pulp & paper machinery Pollution control equipment Boat fittings, value and pump trim Heat exchangers Pharmaceutical and textile industries Condensers, evaporators and tanks Standards: ASTM/ASME: UNS S31600 / S31603 EURONORM: X1 CrNiMo 17 12 2 / X3 CrNiMo 17 12 2 AFNOR: Z 6 CND 17-11 / Z 2 CND 17-12 DIN: 1.4401 / 1.4404 Resistance Corrosion Resistance: Generally more resistant than 304 in range of atmospheric environments and many corrosive media due to the increased chromium and molybdenum content. Subject to pitting and crevice corrosion in warm chloride environments, and to stress corrosion cracking above about 122°F (50°C). Considered resistant to potable water with up to about 1000mg/L chlorides at ambient temperatures, reducing to about 500mg/L at 140°F (60°C). Usually regarded as the “marine grade stainless steel” – but is not resistant to warm sea water. Heat Resistance: Good oxidation resistance in intermittent service to 1600°F (870°C) and in continuous service to 1700°F (925°C) Grade 316L is more resistant to carbide precipitation. Processing Welding Characteristics: Excellent weldability by all standard fusion methods, both with and without filler metals. Heavy welded sections in Grade 316 require post-weld annealing for maximum corrosion resistance, this is not required for grade 316L. Heat Treatment: Annealing temperature range is 1900 to 2100°F (1038 to 1149°C). Cannot be hardened by heat treatment. Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion. Processing – Hot Forming: Most producers recommend a maximum forging temperature between 2100°F and 2300°F Do not forge below 1700°F (927°C) Best Corrosion resistance is obtained if the forgings are given a final anneal. Processing – Cold Forming: 316/316L types being extremely tough and ductile, can be readily cold worked such as roll form, swaging, cold heading, deep drawing, bent, etc., without difficulty Severely cold formed parts should be annealed to remove stresses. Machineability: Type 316/316L is somewhat more difficult to machine than Type 304 because of its toughness. 316/316L machines with chip characteristics that are tough and strong. Chip breakers and curlers are advised. As large a tool as possible and great amounts of cutting fluid should be used. Heavy positive feeds at low speeds should be considered since 316/316L work hardens rapidly. roperties Chemical Properties:CMnSiPSCrMoNiN316 (S31600)0.08 max2.0 max0.75 max0.045 max0.03 maxmin: 16.0 max: 18.0min: 2.0 max: 3.0min: 10.0 max: 14.00.10 max316L (S31603)0.03 max2.0 max0.75 max0.045 max0.03 maxmin: 16.0 max: 18.0min: 2.0 max: 3.0min: 10.0 max: 14.00.10 max Mechanical Properties:GradeTensile Strength ksi (min)Yield Strength 0.2% ksi (min)Elongation %Hardness (Brinell) MAXHardness (Rockwell B) MAX316 (S31600)75304021795316L (S31603)70254021795 Physical Properties:Density lbm/in3Thermal Conductivity (BTU/h ft. °F)Electrical Resistivity (in x 10-6)Modulus of Elasticity (psi x 106Coefficient of Thermal Expansion (in/in)/°F x 10-6Specific Heat (BTU/lb/°F)Melting Range (°F)0.29 at 68°F100.8 at 68 212°F29.1 at 68°F298.9 at 32 – 212°F0.108 at 68°F2500 to 25509.7 at 32 – 1000°F0.116 at 200°F11.1 at 32 – 1500°F

wilsonpipeline Stainless inventory includes Prodec 304/304L (UNS S30400 / S30403) in stainless steel plate products. General Properties Prodec Alloy 304/304L is an improved version of standard 304/304L processed for improved machinability and outstanding uniformity. This alloy offers faster machining speeds, longer tool life, improved part quality and lower total cost of machined parts. Prodec 304/304L is nonmagnetic in the annealed condition, but may become slightly magnetic as a result of cold working or welding. Specifications: UNS S30400, UNS S30403 Applications: Prodec 304/304L Stainless Steel is used in a wide variety of home and commercial applications, including: Chemical process equipment Food and beverage industry Standards: ASTM/ASME:  UNS S30400/S30403 EURONORM: 1.4301 / 1.4307 Resistance Corrosion Resistance: Prodec 304/304L is a versatile, general purpose stainless steel with good resistance to atmospheric corrosion, to many organic and inorganic chemicals, and to food and beverages. It has also been used in vacuum processing equipment and specialized instruments where high integrity is essential. Heat Resistance: Good oxidation resistance in intermittent service to 1600°F and in continuous service to 1690°F. Continuous use of 304 in the 800-1580°F range is not recommended if subsequent aqueous corrosion resistance is important. Processing Properties of 304 Alloy Welding Characteristics: readily welded by full range of conventional welding procedures except oxyacetylene. AWS E308L/ ER308L filler metal should be used with Prodec 304/304L steel. Machinability: offers faster machining speeds, longer tool life, improved part quality and lower total cost of machined parts. Properties Chemical PropertiesCrNiCMnPSSiFeMIN18.08.0–––0.015––MAX20.011.00.032.00.0450.030.75Balance Mechanical PropertiesTypicalASTMTensile Strength, ksiksi8575Yield Strength, ksiksi3530Elonation in 2 inches, %%6040Reduction of area, %%70–Hardness, HBHB160201 Physical PropertiesDensity lbm/in3Thermal Conductivity (BTU/h ft. °F)Electrical Resistivity (in x 10-6)Modulus of Elasticity (psi x 106Coefficient of Thermal Expansion (in/in)/ °F x 10-6Specific Heat (BTU/lb/ °F)Melting Range (°F)at 68°F: 0.2858.7 at 212°F27.6 at 68°F299.4 at 32 – 212°F0.1200 at 68°F to 212°F2500 to 259010.2 at 32 – 1000°F10.4 at 32 – 1500°F

wilsonpipeline Stainless inventory now includes stainless steel 317L (UNS S31703) in Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe, Seamless Stainless Steel Pipe. Overview General Properties Alloy 317L is a molybdenum containing, low carbon austenitic stainless steel with increased additions of chromium, nickel, and molybdenum for better corrosion resistance and increased resistance to chemical attack for sulfurous, acetic, formic, citric, and tartaric acids. Due to its low carbon content, 317L also provides resistance to sensitization when welded and higher creep, stress to rupture, and tensile strength at elevated temperatures. It is non-magnetic in the annealed condition but may become slightly magnetic after welding. Applications Alloy 317L is commonly used to handle sulfur, pulp liquor, acid dyestuffs, acetylating and nitrating mixtures, bleaching solutions, severe coal and oil, and many chemical compounds. Some other applications that use alloy 317L include: Paper and pulp handling equipment Chemical and petrochemical processing equipment Condensers in fossil and nuclear fueled power generation stations Food processing equipment Textile equipment Standards – Alloy 317L ASTM/ASME: UNS N08020 EURONORM: FeMi35Cr20Cu4Mo2 DIN:  2.4660 Resistance Corrosion Resistance Demonstrates superior corrosion resistance in difficult environments including a wide range of chemicals, especially in acidic chloride environments Excellent resistance in applications where contamination is desired to be kept to a minimum Low carbon content allows 317L to be highly resistant to intergranular corrosion Combats the tendency to pit when in contact with phosphorus acids, chlorides, bromides, and iodides Heat Resistance All chromium-nickel-molybdenum steels all have excellent resistance to oxidation Demonstrates a low rate of scaling in ordinary atmospheres at temperatures up to 1600-1650°F (871-899°C). Processing Welding Characteristics All common fusion and resistance methods, with the exception of oxyacetylene welding, have proven successful AWS E317L/ER317L filler metal or austenitic, low carbon filler metals with molybdenum content higher than that of Type 317L, or a nickel-base filler metal with sufficient chromium and molybdenum content to exceed the corrosion resistance of Type 317L should be used to weld Type 317L steel Machinability Low speeds and constant feeds will minimize this alloy’s tendency to work harden. Tougher than 304 stainless with a long stringy chip, the use of chip breakers is recommended Properties Chemical Properties:%CrNiCSiMnPSMoFe317Lmin: 18.0 max:20.0min: 11.0 max: 15.00.035 max0.75 max2.0 max0.04 max0.03 maxmin: 3 max: 4balance Mechanical Properties:GradeTensile Strength ksi (min.)Yield Strength 0.2% Offset ksi (min.)Elongation – % in 50 mm (min.)Hardness (Brinell) MAXHardness (Rockwell B) MAX317L75304021795 Physical Properties:Denstiy lbm/in3Coefficient of Thermal Expansion (min/in)-°FElectrical Resistivity mW-inThermal Conductivity BTU/hr-ft-°FSpecific Heat BTU/lbm -°Fat 68 °Fat 77 – 212°Fat 77 – 932°Fat 77 – 1832°Fat 68 – 1832°Fat 32 – 212°F0.299.210.110.831.114.60.11

wilsonpipeline Stainless inventory now includes Alloy 321 (UNS S32100) in Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipes. Overview General Properties Alloy 321 (UNS S32100) is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). The alloy resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L. It also possesses good low temperature toughness. Alloy 321H (UNS S32109) is the higher carbon (0.04 – 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification. Alloy 321 cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices. Common Applications Aerospace – piston engine manifolds Chemical Processing Expansion Joints Food Processing – equipment and storage Petroleum Refining – polythionic acid service Waste Treatment – thermal oxidizers ASTM/ASTE: UNS S32100 Resistance Corrosion Resistance exhibits good general corrosion resistance that is comparable to 304. developed for use in the chromium carbide precipitation range of 1800 – 1500°F (427 – 816°C) . can be used in most diluted organic acids at moderate temperatures . can be used in pure phosphoric acid at lower temperatures. can be used in up to 10% diluted solutions at elevated temperatures. resists polythionic acid stress corrosion cracking in hydrocarbon service. utilized in chloride or fluoride free caustic solutions at moderate temperatures. does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid service. Processing Alloy 321/H can be easily welded and processed by standard shop fabrication practices. Hot Forming Working temperatures of 2100 – 2300°F (1149 – 1260°C) are recommended for forging, upsetting and other hot working processes. Alloy not suitable for work at temperatures below 1700°F (927°C). Material must be water quenched or fully annealed after working to re-attain maximum corrosion resistance. Cold Forming Quite ductile and forms easily. Welding Readily welded by most standard processes. Post weld heat treatment is not necessary Machining Hardening rate of 321 makes it less machinable than 410 stainless steel, but similar to 304 Properties Chemical Properties:%CrNiCSiMnPSNTiFe321min:17.0 max:19.0min: 9.0 max:12.0max:0.08max:0.75max:2.0max:0.045max:0.03max:0.10min:5*(C+N) max:0.70Balance321Hmin:17.0 max:19.0min: 9.0 max:12.0min:0.04 max:0.10min:18.0 max:20.0max:2.0max:0.045max:0.03max:0.10min:5*(C+N) max:0.70Balance Mechanical Properties:GradeTensile Strength ksi (min.)Yield Strength 0.2% Offset ksi (min.)Elongation – % in 50 mm (min.)Hardness (Brinell) MAX321753040217 Physical Properties:Denstiy lbm/in3Coefficient of Thermal Expansion (min/in)-°FThermal Conductivity BTU/hr-ft-°FSpecific Heat BTU/lbm -°FModules of Elasticity (annealed)2-psiat 68 °Fat 68 – 212°Fat 68 – 1832°Fat 200°Fat 32 – 212°Fin tension (E)0.2869.220.59.30.1228 x 106

wilsonpipeline Stainless inventory now includes Alloy 347/347H (UNS S34700/S34709) in Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. General Properties Alloy 347 is a stabilized, austenitic, chromium steel containing columbium which allows for the elimination of carbide precipitation, and, consequently, intergranualr corrosion. Alloy 347 is stabilized by the additions of chromium and tantalum and offers higher creep and stress rupture properties than alloy 304 and 304L which may also be used for exposures where sensitization and intergranualr corrosion are of concern. The addition of columbium also allows Alloy 347 to have excellent corrosion resistance, even superior to that of alloy 321.  347H is the higher carbon composition form of Alloy 347 and demonstrates improved high temperature and creep properties. Specifications: UNS S34700 / S34709 Applications: Alloy 347 is frequently used for the fabrication of equipment, which must be placed in service under severe corrosive conditions, and is also common to the petroleum refining industries. Applications that consistently used Alloy 347 include: High temperature chemical processes Heat exchanger tubes High temperature steam service High pressure steam pipes Radiant superheaters Boiler tubes Heavy duty exhaust systems General refinery piping Standards: ASTM/ASME: UNS S34700 / S34709 EURONORM: FeMi35Cr20Cu4Mo2 DIN: 2.4660 Corrosion Resistance: Offers similar resistance to general, overall corrosion as Alloy 304 Used for applications where alloys such as Alloy 304 are vulnerable to intergranualr corrosion Generally used for heavy welded equipment which cannot be annealed and for equipment which is operated between 800 to 150°F (427 TO 816°C) Alloy 347 is preferred over Alloy 321 for aqueous and other low temperature environments Primarily used in high temperature environments where resistance to sensitization is necessary, in turn preventing intergranualr corrosion at lower levels Susceptible to stress corrosion cracking Exhibits oxidation resistance similar to all other 18-8 austenitic stainless steels Weldability Austenitic stainless steels are considered to be the most weldable out of all high alloy steels Can be welded by all fusion and resistance welding processes Heat Treatment Annealing temperature range is 1800 to 2000°F May be stress relief annealed within the carbide precipitation range of 800 to 1500°F without any danger of subsequent intergranualr corrosion Cannot be hardened by heat treatment Chemical Properties:CCrMnNiPSSiCb/Ta3470.08 max min: 17.0 max: 20.02.0 max min: 9.0 max: 13.00.04 max 0.30 max 0.75 max min:10x C max: 1.0347H min: 0.04 max: 0.10 min: 17.0 max: 20.02.0 maxmin: 9.0 max: 13.00.03 max0.30 max0.75 maxmin:10x C max: 1.0 Mechanical Properties:Grade Tensile Strength ksi (MPa) minYield Strength 0.2% ksi offset ksi (MPa) minElongation (% in 50mm) minHardness (Brinell) MAXHardness (Rockwell B) MAX347/347H 75 (515) 30 (205)4020195 Physical Properties:Density lbm/in3Coefficient of Thermal Expansion (min/in)-°FThermal Conductivity BTU/hr-ft-°FSpecific Heat BTU/lbm -°FModules of Elasticity (annealed)2-psiat 68 °Fat 68 – 212°Fat 68 – 1832°F68-932°Fat 32 – 212°Fin tension (E)0.2889.211.414.70.1228 x 106

wilsonpipeline Stainless Steel Products inventories a wide range of stainless steel heat resistant grades, including 309, 309S, 309H, 310, 310S, 310H, and 330. High temperature stainless grades are stocked in Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipes,Gaskets,etc. Do you need a non-standard pipe, tube or structural item manufactured from a high temperature stainless steel grade?  Contact our specialty pipe, tube & structural pision—for rapid delivery of non-standard items! wilsonpipeline Stainless Steel stocks the following products in 300 Series High Temp stainless steel: Stainless Steel 300 Series High Temp Products Super Duplex Stainless Steel FlangesDuplex S31803 F51 flange,Duplex Steel S31803 SO Flange,NSI ASME JIS DIN super duplex stainless steel flanges,etc.More Information Stainless Steel FlangesStainless Steel Welding Neck Flange (WN),316L Stainless Steel Flange,317 Stainless Steel Flange,347 Stainless Steel Flange,etc. More Information Stainless Steel Pipe FittingsDUPLEX S32750 (SAF 2507) Pipe Elbow,904L Pipe SR/LR Elbow,Stainless Steel 304 Elbow,347H PIPE FITTING,etc. More Information Stainless Steel Pipes304L 316L Large Diameter Stainless Steel Seamless Pipes,316L/321/304 Cold Drawn Seamless Tube GOST 9941-91,ASTM A269 STPG42 G3456 SCH4O Seamless Stainless Steel Pipes AP/BA Welded Cold Drawn Pipe More Information GasketsSerrated gasket with outer ring SS316,Spiral serrated metal gasket,Basic type serrated gasket,etc.More Information Please contact us directly with technical questions . High Temp Series Applications Type 309Used for elevated temperature applications, including Furnace parts – conveyor belts, rollers, burner parts, refractory supports, retorts and oven linings, fans, tube hangers, baskets and trays to hold small parts; Containers for hot concentrated acids, ammonia and sulfur dioxide; contact with hot acetic and citric acid. Type 310/SCorrosion resistant, including furnace parts such as conveyor belts, rollers, burner parts, refractory supports, retorts and oven linings, fans, tube hangers, and baskets and trays to hold small parts. Chemical process industry to contain hot concentrated acids, ammonia, and sulfur dioxide and in the food processing industry, they are used in contact with hot acetic and citric acid Type 330Combines excellent resistance to carburization and oxidation at temperatures up to 2200 F(1200 C) with high strength.Used in a variety of furnace components as well as in gas turbines, heat exchangers, general heat treating equipment and neutral and cyanide salt pots. Type 334 titanium- and aluminum-bearing austenitic stainless steel offering superior elevated temperature scaling resistance compared to the conventional chromium-nickel stainless steels. Heated electric heating elements Advantages of High Temp Stainless Steel Oxidation resistance up to 2100°F Resistant to carburization and nitriding Resistant to thermal Shock Good strength at elevated temperature Chloride ion stress corrosion cracking resistance Superior Creep strength (ability to resist distortion over long term exposure to a high temperature).

wilsonpipeline Stainless inventory now includes Alloy 309/309S (UNS S30900/S30908) in Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe,etc. Overview General Properties Alloys 309 and 309S are austenitic chromium-nickel stainless steels that are often used for higher temperature applications. Due to their high chromium and nickel content, Alloys 309 and 309S are highly corrosion resistant, have outstanding resistance to oxidation, and excellent heat resistance while providing good strength at room and elevated temperatures. The only significant difference between 309 and 309S is the carbon content. Alloy 309S has a much less carbon composition which minimizes carbide precipitation and improves weldability. Specifications: UNS S30900/S30908 Applications: Alloys 309 and 309S are used exclusively for their high temperature oxidation resistance, excellent high temperature strength, along with their resistance to creep deformation and environmental attack. Some examples include, but are not limited to: Heating elements Aircraft and jet engine parts Heat exchangers Carburizing annealing products Sulfite liquor handling equipment Kiln liners Boiler baffles Refinery and chemical processing equipment Auto exhaust parts Standards: ASTM/ASME: UNS S30900/S30908 EURONORM: FeMi35Cr20Cu4Mo2 DIN: 2.4660 Resistance Corrosion Resistance Provide excellent corrosion resistance More resistant to marine atmospheres than Alloy 304 Often used at higher temperatures to take advantage of their oxidation resistance Have high resistance to sulfite liquors Generally considered heat resistant alloys Destructive scaling temperature is approximately 2000oF Good scaling resistance with regard to continuous and intermittent service High Temperature Corrosion Alloy 309 resists high temperature corrosion in most in-service conditions. Operating temperatures are as follows: Oxidizing conditions (max. sulfur content–2 g/m3) 1922°F (1050°C) continuous service 2012°F (1100°C) peak temperature Oxidizing conditions (max. sulfur greater than 2 g/m3) 1742°F (950°C) maximum temperature Low oxygen atmosphere (max. sulfur content–2 g/m3) 1832°F (1000°C) maximum temperature Nitriding or carburizing atmospheres 1562–1742°F (850–950°C) maximum The alloy does not perform as well as Alloy 600 (UNS N06600) or Alloy 800 (UNS N08800) in reducing, nitriding or carburizing atmospheres, but it does outperform most heat resistant stainless steels in these conditions. Processing Heat Treatment Cannot be hardened through heat treatment because the consist solely of austenite at room temperature Higher tensile and yield strengths that can be obtained through cold working and not followed by full annealing are not stable at the higher temperatures where these alloys are used Creep properties can be negatively affected by the use of cold worked material at these higher temperatures Fabrication Can be roll formed, stamped, and drawn readily In process annealing is often required to reduce hardness and increase ductility Weldability The austenitic class of stainless steels is generally considered to be weldable Generally considered to have weldability equivalent to the most common alloys of the austenitic class 304 and 304L Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion Properties Chemical Properties:CMnSiPSCrNiFe309max: 0.202.0 max0.75 max0.045 max0.03 maxmin: 22.0 max: 24.0min: 12.0 max: 15.0Balance309Hmin: 0.04 max: 0.102.0 max0.75 max0.045 max0.03 maxmin: 22.0 max: 24.0min: 12.0 max: 15.0Balance Mechanical Properties:GradeTensile Strength ksi (min)Yield Strength 0.2% ksi (min)Elongation %Hardness (Brinell) MAX309/H403040217 Physical Properties:Density lbm/in3Thermal Conductivity (BTU/h ft. °F)Electrical Resistivity (in x 10-6)Modulus of Elasticity (psi x 106Coefficient of Thermal Expansion (in/in)/ °F x 10-6Specific Heat (BTU/lb/ °F)Melting Range (°F)at 68°F: 0.2859.0 at 32- 212°F30.7 at 68°F28.58.28 at 32 – 212°F0.1200 at 68°F to 212°F2500-2590

wilsonpipeline Stainless inventory now includes 310/ 310S Flanges, Pipe Fittings and pipes (Alloy 310 UNS S31000 / Alloy 310S UNS S31008), ideally suited for high-temperature applications such as heat treatment and chemical processing equipment. Overview General Properties Alloy 310 is an austenitic stainless steel that combines excellent high temperature properties with good ductility and weldability. It is typically used for elevated temperature applications as its high chromium and nickel content provide solid corrosion resistance, excellent resistance to oxidation, and superior strength in temperatures up to 2100°F. Due to its high chromium and nickel content, it is superior to 304 or 309 stainless in most environments. Applications: The higher alloyed stainless steels generally have excellent strength at elevated temperatures along with outstanding resistance to creep deformation and environmental attack. Therefore, Alloy 310 is used widely in industries such as heat treatment and chemical processing. Some examples include: Furnace Parts Oil Burner Parts Heat Exchangers Welding Filler Wire and Electrodes Annealing Covers Combustion Tubes Fire Box Sheets Value Added Services: Need a special length? We can custom level 3/8″ thick x 72″ x 186″ from our plate line to reduce scrap Polish plate inventory available We supply #4, #6, and #8 mirror finish Special polishes available Plate processing Dynamic water jet cutting Plate shearing Saw cutting Plasma cutting and high quality plasma cutting Machine cut rings and discs Resistance wilsonpipeline Stainless inventory now includes 310/ 310S Flanges, Pipe Fittings and pipes provides superior resistance to corrosion and heat exposure, in even the most demanding environments. Corrosion Resistance: Provides excellent corrosion resistance High chromium content allows for good aqueous corrosion resistance Excellent resistance at normal temperatures and also has good resistance to oxidizing and carburizing atmospheres Heat Resistance: Good resistance to oxidation in intermittent service in air at temperatures up to 1040°C and 1150°C in continuous service. Good resistance to thermal fatigue and cyclic heating. Widely used where sulphur dioxide gas is encountered at elevated temperatures. Continuous use in 425-860°C range not recommended due to carbide precipitation, if subsequent aqueous corrosion resistance is needed Generally used at temperatures starting from about 800 or 900°C – above the temperatures at which 304H and 321 are effective. Processing Fabrication: Commonly used in the heat treatment and process industries due to high temperature and corrosive environments Often fabricated into complex structures Roller-forms, stamps and draws readily Because 310 work hardens, severe forming operations should be followed by an anneal Weldability: Austenitic stainless steel is generally considered to be weldable Generally considered to have weldability equivalent to 304 and 304L Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion Properties Chemical Properties:%CrNiCSiMnPSMoCuFe310min: 24.0 max:26.0min: 19.0 max: 22.00.250.752.00.0450.0300.750.5balance310Smin: 24.0 max: 26.0min: 19.0 max: 22.00.081.002.00.0450.0300.750.5balance Mechanical Properties:GradeTensile Strength ksi (min.)Yield Strength 0.2% Offset ksi (min.)Elongation – % in 50 mm (min.)Hardness (Brinell) MAXHardness (Rockwell B) MAX310/310S75304021795 Physical Properties:Denstiy lbm/in3Coefficient of Thermal Expansion (min/in)-°FElectrical Resistivity mW-inThermal Conductivity BTU/hr-ft-°FSpecific Heat BTU/lbm -°FMagnetic Permability (annealed)1Modules of Elasticity (annealed)2-psiat 68 °Fat 68 – 212°Fat 68 – 932°Fat 68 – 1832°Fat 68°Fat 1200°Fat 68 – 1832°Fat 68 – 932°Fat 32 – 212°Fat 200Hin tension (E)in shear (G)0.298.89.510.530.7—10.510.80.121.0229 x 10611.2 x 106 APPLICATION AREA We are majored in the products as: special steel, duplex steel, stainless steel pipe fitting, flange, steel pipe, standard and nonstandard steel material products. wilsonpipeline products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.Our products are according to national standard GB/T12459-90, GB/T13401, U.S. standard ANSI/ASME B16.9, ANSI/ASME B16.5/B16.47, ANSI/ASME B16.11,ANSI/ASME B36.19M/ B36.10M, ASME B16.20,British standard BS,Germany standard DIN,Japan standard JIS…

wilsonpipeline Stainless inventory now includes 310H Flanges, Pipe Fittings and pipes (Alloy 310H (UNS S31009)), ideally suited for high-temperature applications such as heat treatment and chemical processing equipment. Overview General Properties Alloy 310H (UNS S31009) has a carbon content restricted to exclude the lower end of the 310 range. This makes 310H the grade of choice for high temperature applications. This steel has good resistance to oxidation at temperatures of up to 1040°C (1904°F) in intermittent service and 1150°C (2102°F) in continuous service. It is widely used in environments where sulfur dioxide gas is present at high temperatures; however it is recommended that this steel should not be continuously used at 425-860°C (797-1580°F) range due to carbide precipitation. Applications Grade 310H stainless steel is chiefly used in the heat treatment industry, and the chemical process industry. Fans Trays Baskets Rollers Burner parts Oven linings Tube hangers Retorts linings Conveyor belts Refractory supports Containers for hot concentrated acids, ammonia, and sulfur dioxide Used along with hot acetic and citric acid in the food processing industry. Value Added Services: Need a special length? We can custom level 3/8″ thick x 72″ x 186″ from our plate line to reduce scrap Polish plate inventory available We supply #4, #6, and #8 mirror finish Special polishes available Plate processing Dynamic water jet cutting Plate shearing Saw cutting Plasma cutting and high quality plasma cutting Machine cut rings and discs Resistance Corrosion Resistance: The high chromium content – intended to increase high temperature properties – also gives this grades good aqueous corrosion resistance. In high temperature service, 310H exhibits good resistance to oxidising and carburising atmospheres. Heat Resistance: 310H has good resistance to oxidation in intermittent service in air at temperatures up to 1040°C and 1150°C in continuous service. Good resistance to thermal fatigue and cyclic heating. Widely used where sulphur dioxide gas is encountered at elevated temperatures. Continuous use in 425-860°C range not recommended due to carbide precipitation, if subsequent aqueous corrosion resistance is needed, but it often performs well in temperatures fluctuating above and below this range. Prone to sigma phase embrittlement in the temperature range 650 – 900°C. Grade 310H is generally used at temperatures starting from about 800 or 900°C – above the temperatures at which 304H and 321 are effective Processing Fabrication: Commonly used in the heat treatment and process industries due to high temperature and corrosive environments Often fabricated into complex structures Roller-forms, stamps and draws readily Because 310 work hardens, severe forming operations should be followed by an anneal Weldability: Austenitic stainless steel is generally considered to be weldable Generally considered to have weldability equivalent to 304 and 304L Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion Properties Chemical CompositionElementContent (%)Iron, Fe49.075-45.865Chromium, Cr24-26Nickel, Ni19-22Manganese, Mn2Silicon, Si0.75Phosphorous, P0.045Carbon, C0.040-0.10Sulfur, S0.03 Mechanical PropertiesPropertiesMetricImperialTensile strength515 MPa74694 psiYield strength205 MPa29732 psiModulus of elasticity200 GPa29000 ksiShear modulus77.0 GPa11200 ksiPoissons ratio0.30.3Elongation at break (in 50 mm)40%40%Hardness, Rockwell B9595Hardness, Brinell217217 PHYSICAL PROPERTIESQuantityValueUnitThermal expansion16 – 17e-6/KThermal conductivity16 – 16W/m.KSpecific heat500 – 500J/kg.KMelting temperature1370 – 1400°CService temperature0 – 500°CDensity8000 – 8000kg/m3Resistivity0.7 – 0.7Ohm.mm2/m