Search Results

Grade 316 / 316L | UNS S31600 / UNS S31603 | 1.4401 / 1.4404 These steels are the second most regularly specified stainless steels after Type 304 stainless steel and are part of the SAE defined 300 Series which encompasses a range of austenitic chromium-nickel alloys. Austenitic stainless steels like Type 316L stainless steel is widely available, have good general corrosion resistance, good cryogenic toughness, and excellent formability and weldability. Type 316 stainless steel has 2-3% Molybdenum included in its chemical composition which prevents specific forms of corrosion and generally enhances its corrosion resistance. Type 316 stainless steel is often referred to as “marine grade” stainless due to its increased resistance to chloride corrosion compared to Type 304 stainless steel making it a very suitable material for use in salt water environments. Type 316L stainless steel is a variant of Type 316 stainless steel and differs by having a lower Carbon content as well as slightly lower yield and tensile strengths. Type 316L stainless steel offers improved weldability and also reduces the possibility of lower corrosion resistance around welded areas. As with most steel plate products a number of different designations are used for these  stainless steels. The most common are: Type 316              1.4401 (EN Steel Number)            S31600 (UNS) Type 316L            1.4404 (EN Steel Number)            S31603 (UNS) 316/316L Stainless Steel Properties: Typical chemical and mechanical properties of Type 316 stainless steel and Type 316L stainless steel:  Chemical Analysis (%) PRENMechanical Properties C CrNi Mo Proof Stress Tensile Elongation 316 .08 17 11.5 – 24 255 550-700 40 316L .03 17 11.5 – 24 220520-67040 Typical industrial sectors: Brewing Chemical Industry Dairy Food processing Marine equipment Petrochemicals Pharmaceuticals Typical product applications: Condensers Heat Exchangers Stainless Steel Pipe Fittings Stainless Steel Pipes Pressure Vessels Stainless Steel Valves Stainless Steel Flanges All 316/316L at wilsonpipeline Pipe is certified to 316/316L which we stock at our warehouse in the CN with the capabilities to supply directly to countries across the world in all Stainless Steel Flanges, Stainless Steel Pipe Fittings, and Stainless Steel Pipes. 316/316L Stainless Steel Pipes, Stainless Steel Tubes/Tubing and Butt Weld Stainless Steel Fittings 316/316L stainless steel pipes and stainless steel tubes are available in both seamless and welded form in OD and NB sizes. In addition to standard sizes, which are available in stock, our specialty is to manufacture and supply custom size 316/316L cold drawn seamless stainless steel tubes from our factory. 316, 316L stainless steel pipes and stainless steel tubes can be offered in random lengths of up to 6meters long or cut to a specific length as ordered. We also offer a complete range of 316/316L stainless steel pipe fittings including 316L stainless steel elbow, 316L stainless steel bends, 316L stainless steel tees, stainless steel reducers and stainless steel caps. Go www.wilsonpipeline.com to see details of our most popular stock sizes in Type 316 and Type 316L stainless steel products. Source: wilsonpipeline Pipe Industry

Stainless Steel 316 or Stainless Steel 316L is an improved version of stainless steel 304, with the addition of molybdenum and a slightly higher nickel content. The resultant composition of stainless steel 316 gives the steel much increased corrosion resistance in many aggressive environments. The molybdenum makes the steel more resistant to pitting and crevice corrosion in chloride-contaminated media, sea water and acetic acid vapours. The lower rate of general corrosion in mildly corrosive environments gives the steel good atmospheric corrosion resistance in polluted marine atmospheres. stainless steel 316 offers higher strength and better creep resistance at higher temperatures than stainless steel 304.stainless steel 316 also possesses excellent mechanical and corrosion properties at sub-zero temperatures. When there is a danger of corrosion in the heat-affected zones of weldments, the low-carbon variety stainless steel 316L should be used. stainless steel 316 Ti, the titanium-stabilised version, is used for its resistance to sensitization during prolonged exposure in the 550oC-800oC temperature range. Typical Applications Because of its superior corrosion and oxidation resistance, good mechanical properties and fabricability, stainless steel 316 has applications in many sectors of industry. Some of these include:  Tanks and storage vessels for corrosive liquids.  Specialised process equipment in the chemical, food, paper, mining, pharmaceutical and petroleum industries.  Architectural applications in highly corrosive environments. Scrubbers for environmental control Duct works, stainless steel pipes, sewage water filters Heat exchanger stainless steel u tubes, ozone generators Stainless Steel Flanges Stainless Steel Pipe Fittings Chemical Composition (ASTM A 240) SX316 SX316L SX316Ti C 0.08 max 0.03 max 0.08 max Mn 2.0 max P 0.045 max S 0.030 max Si 1.0 max Cr 16.0 to 18.0 Ni 10.0 to 14.0 Mo 2.00 to 3.00 Ti 0.5 max 5X%C Typical properties in the annealed condition  The properties quoted in this publication are typical of mill products and unless indicated must not be regarded as guaranteed minimum values for specification purposes. 1. Mechanical properties at room temperature Tensile Strength, MPa Proof Strength, (Offset 0.2%), MPa Elongation (Percent in L = 5.65 S0) Hardness (Brinell) Erichsen Cup Test Value mm Endurance (fatigue) limit, MPA SX316 TypicalMinimum 580515 310205 5540 165- 8 – 10- 260- SX316L TypicalMinimum 590485 310170 6040 170- 240- 260- SX316Ti TypicalMinimum 600515 320205 5040 165- — 260- 2. Properties at elevated temperatures  The values given refer to stainless steel 316 and stainless steel 316 Ti only as strength values for stainless steel 316Lfall rapidly above 425oC. Short Time Elevated Temperature Tensile Strength Temperature, °C Strength, MPa 600 460 700 320 800 190 900 120 1000 70 Creep data  Stress for a creep rate of 1% in 10 000 h Temperature, °C Stress, MPa 550 160 600 120 650 90 700 60 800 20 Recommended Maximum Service Temperature  (Oxidising conditions) Continuous Service 925oC  Intermittent Service 870oC 3. Properties at Sub-Zero Temperatures  ( Stainless Steel 316 ) Temperature Proof Strength (0.2% Offset) Tensile Strength Impact Strength (Charpy V-Notch) °C MPa MPa J -78 400 820 120 -161 460 1150 165 -196 580 1300 155 4. Corrosion Resistance 4.1 Aqueous  For specific conditions, consult VRN technical staff. As a rough guide, the following examples are given  for pure acid-water mixtures. Temperature °C Concentration, (-% by mass) Sulphuric Acid Nitric Acid Phosphoric Acid Formic Acid 20 10 20 40 60 80 100 0 1 2 2 1 0 0 0 0 0 0 1 0 0 0 0 1 2 0 0 0 1 1 0 80 10 20 40 60 80 100 2 2 2 2 2 2 0 0 0 1 1 2 0 0 2 2 1 1 0 2 2 2 2 0 Key: 0 = resistant – corrosion rate less than 100 >mm/year  1 = partly resistant – corrosion rate 100 m to 1000 >mm/year  2 = non resistant – corrosion rate more than 1000 mm/year 4.2 Atmospheric The performance of stainless steel 316 compared with other metals in various environments is shown in the  following table. Corrosion rate is based on a 5 year exposure. Environment Rural Marine Marine Industrial Corrosion Rate (µm/year) SX 314Aluminium-3SMild Steel 0.00250.0255.8 0.00760.42434.0 0.0051068646.2 Note: For corrosion resistance of stainless steel 316 relative to other types, see the section in Comparative Data. 4.3.1 Annealing. Heat from 1 010oC to 1 120oC and cool rapidly in air or water. The best corrosion  resistance is obtained when the final annealing temperature is above 1 070oC. 4.3.2 Stress relieving. Heat from 200 – 400oC and air cool. 4.3.3 Hot working  Initial forging and pressing: 1150 – 1200oC  Finishing temperature: above 900oC  For upsetting operations, forgings  should be finished between: 930 and 980oC  All hot working operations should be followed by annealing. Note: Soaking times to ensure uniformity of temperature are up to 12 times that required for the same thickness of mild steel. Cold Working Stainless Steel 316/316L, being extremely tough and ductile, can be readily fabricated by cold working. Typical operations include bending, forming, deep drawing and upsetting. Typical product applications: Condensers Heat Exchangers Stainless Steel Pipe Fittings Stainless Steel Pipes Pressure Vessels Stainless Steel Valves Stainless Steel Flanges Typical industrial sectors: Brewing Chemical Industry Dairy Food processing Marine equipment Petrochemicals Pharmaceuticals All 316/316L at wilsonpipeline Pipe is certified to 316/316L which we stock at our warehouse in the CN with the capabilities to supply directly to countries across the world in all Stainless Steel Flanges, Stainless Steel Pipe Fittings, and Stainless Steel Pipes. Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

Stainless steel grade 317L is a low carbon version of grade 317 stainless steel. It has the same high strength and corrosion resistance as 317 steel but can produce stronger welds due to the low carbon content. The following datasheet provides an overview of stainless steel grade 317L. Chemical Composition The chemical composition of grade 317L stainless steel is outlined in the following table.ElementContent (%)Iron, FeBalanceChromium, Cr18-20Nickel, Ni11-15Molybdenum, Mo3-4Manganese, Mn2Silicon, Si1Phosphorous, P0.045Carbon, C0.03Sulfur, S0.03 Mechanical Properties The mechanical properties of grade 317L stainless steel is displayed in the following table.PropertiesMetricImperialTensile strength595 MPa86300 psiYield strength260 MPa37700 psiModulus of elasticity200 GPa29000 ksiPoisson’s ratio0.27-0.300.27-0.30Elongation at break (in 50 mm)55%55%Hardness, Rockwell B8585 Other Designations Equivalent materials to grade 317L stainless steel is given below.AISI 317LASTM A167ASTM A182ASTM A213ASTM A240ASTM A249ASTM A312ASTM A774ASTM A778ASTM A813ASTM A814DIN 1.4438QQ S763ASME SA240SAE 30317L Manufacturing Process Machining stainless steel grade 317L requires low speeds and constant feeds to reduce its tendency to work harden. This steel is tougher than grade 304 stainless steel with a long stringy chip; however, using chip breakers is recommended. Welding can be performed using most of the conventional fusion and resistance methods. Oxyacetylene welding should be avoided. AWS E/ER 317L filler metal is recommended. Conventional hot working processes can be performed. The material should be heated to 1149-1260°C (2100-2300°F); however, it should not be heated below 927°C (1700°F). To optimize corrosion resistance, a post-work annealing is recommended. Shearing, stamping, heading and drawing are possible with grade 317L stainless steel, and post-work annealing is recommended to eliminate internal stresses. Annealing is performed at 1010-1121°C (1850-2050°F), which should be followed by rapid cooling. Grade 317L stainless steel does not respond to heat treatment. Applications Grade 317L stainless steel is widely used in the following applications: Condensers in fossil Pulp and paper manufacturing Nuclear fueled power generation stations Chemical and petrochemical process equipment. Stainless Steel Pipes and Tubes Stainless Steel Pipe Fittings Stainless Steel Flanges Stainless Steel Forgings Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

317/317L Stainless Steel is an austenitic stainless steel which contains molybdenum. This grade has improved corrosion resistance over 304/304L Stainless Steel and 316/316L Stainless Steel. 317/317L Stainless Steel By controlling the addition of nitrogen, 317 Stainless Steel commonly meets the properties of the straight grade 317 Stainless Steel except for it’s lower carbon content. Specifications UNS S31703  ASTM: A 240, ASME: SA-240 Chemical Composition, %NiCrMnSiCSPMo NFeMIN11.018.0––––– 3.00–– MAX  15.0 20.0 2.0  0.75 0.030.03  0.045 4.000.10  Balance Attributes Excellent corrosion resistance Excellent Strength Improved general and localized corrosion to 316/316L stainless steel Available Forms 317/317L Stainless Steel Round Bar, 317/317L Stainless Steel Pipes, 317/317L Stainless Steel Tubes, 317/317L Stainless Steel Flanges, 317/317L Stainless Steel Pipe Fittings, Welding Materials Applications Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining,Sewage treatment, Natural gas and Pressure vessels and other industries. Physical Properties Density: 0.285 lb/inch3  Melting Range: 2450 – 2630°F Poisson’s Ratio: 0.3 Electrical Resistivity: 475 Ohm-circ mil/ft Industry Names 317 Stainless Steel, 317L Stainless Steel Mechanical Properties Representative Tensile PropertiesUltimate Tensile Strength, ksi 750.2% Yield Strength, ksi 30Elongation, % 40Hardness MAX, Brinell217 Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

317L Stainless Steel Description Type 317L Stainless Steel (UNS 31703) is a low carbon austenitic chromium-nickel stainless steel that can be used in applications where it is not possible to anneal after welding and where maximum corrosion resistance is required. It provides good oxidation resistance in intermittent service to 1600°F and in continuous service to 1700°F. Chemistry Typical Carbon: 0.030 max    Manganese: 2.00 max   Silicon: 0.75 max    Chromium: 18.00-20.00 Nickel: 11.00-15.00 Molybdenum: 3.00-4.00 Phosphorus: 0.045 max Iron: Balance Physical Properties Density 0.29 lbs/in3,7.99 g/cm3 Electrical Resistivity, microhm-in (microhm-cm): 68°F (20°C):  31.19 (79.0) Specific Heat: BTU/lb/°F (kJ/kg•K): 32-212°F (0-100°C):  0.12 (0.50) Thermal Conductivity:  BTU/hr/ft2/ft/°F (W/m•K) At 212°F (100°C): 9.4 (16.2) At 932°F (500C): 12.4 (21.4) Mean Coefficient of Thermal Expansion:in/in/°F (μm/m•K) 32 – 212°F (0 -100°C): 8.9 x 10-6(16.0) 32 – 600°F (0 -315°C): 9.0 x 10-6(16.2) 32 -1000°F (0 -538°C): 9.7 x 10-6 (17.5) 32 -1200°F (0 -649°C): 10.3 x 10-6 (18.5) 32 -1500ºF (0 -871ºC): 11.1 x 10-6 (18.5) Modulus of Elasticity: ksi (MPa) 28.0 x 103 (193 x 103) in tension 11.2 x 103 (77 x 103) in torsion Magnetic Permeability: H = 200 Oersteds: Annealed < 1.02 max. Creep Strength: 1% Flow in 10,000hrs. At 1000°F : 24,000psi Melting Range: °F (°C) 2500 – 2590 (1371 – 1421) Forms Stainless Steel Flanges – Slip on flanges, Blind flanges, Lap joint flanges, Welding neck flanges, Spectacle flanges, TG flanges, Socket welding flanges and Threaded flanges, Square flanges. Stainless Steel Pipe Fittings – Butt Welding Fittings, Forged Fittings, 180 Degree Elbows, 90 Degree Elbows, 45 Degree Elbows, 30 Degree Elbows, Equal Tee, Reducing Tee, Concentric Reducer, Eccentric Reducer, Lap Joint Stub End, Cap, Cross. Stainless Steel Pipes. Mechanical Properties at Room Temperature Properties: Annealed Ultimate Tensile Strength: 75 KSI min (515 MPa min) Yield Strength: (0.2% Offset) 30 KSI min (205 MPa min) Elongation: 35% min Hardness:  Rb 95 max Properties: Tempered Type 317L Stainless Steel can be cold rolled to tempers.  Contact Ulbrich Technical Services for more details. AdditonalProperties Corrosion Resistance  See NACE (National Association of Corrosion Engineers) for recommendations. Finishes # 1 –Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required. # 2D  – Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process.  # 2B  –Smooth finish produced by cold rolling, annealing and descaling.  A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D. #BA  Bright annealed cold rolled and bright annealed #CBA Course bright annealed  cold rolled matte finish and bright anneal #2 Cold Rolled # 2BA – Smooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part.  Polished – Various grit finish for specific polish finished requirements Wire Finishes XC – Extra clean bright annealed or bright annealed and cold rolled Grease – Ultra bright finish for decorative applications Soap – Soap is not removed from tempered wire to act as a lubricant. Cold Forming Type 317L Stainless Steel can be readily formed and drawn. Heat Treatment Type 317L Stainless Steel is non hardenable by heat treatment and can only be hardened by cold working. Welding For best results refer to: SSINA’s “Welding of Stainless Steel and Other Joining Methods”. Applications Chemical Processing, Food Processing, Oil Refineries, Paper Mills, Gas Scrubbers, Photographic Handling, and Marine Parts. Source: wilsonpipeline For more information on this source please visit: wilsonpipeline Pipe Industry .

Event Name: The 7th Shanghai Aquatech, 2015 Start Date: 10 Jun 2015, Wednesday End Date: 12 Jun 2015, Friday Venue: SWEECC (Shanghai World Expo Exhibition & Convention Center) City: Shanghai, China Organizer: Amsterdam RAI Exhibitions Tel: +86-21-332 313 00 Fax: +86-21-332 313 66 Email: info@aquatechchina.com Website: http://www.aquatechchina.com Products: All kinds of pumps, valves, pipes, pipe fittings, related products about water engineering and sewage treatment, etc.

Stainless Steel 317 and 317L are molybdenum-bearing austenitic stainless steels. Due to the molybdenum content of 3-4%Stainless Steel 317 and Stainless Steel 317L are more resistant to general corrosion and pitting/crevice corrosion than type stainless steel 304. Stainless Steel 317 and Stainless Steel 317L are used in the Food, Pharmaceutical, Marine and Architecture industries. Typical Mechanical PropertiesMaterialUltimate Tensile Strength (Mpa)0.2 % Yield Strength (Mpa) % Elongation in 2″Rockwell B HardnessStainless Steel 3175152053595Stainless Steel 317L5152054095Minimum Mechanical Properties by ASTM A240 and ASME SA 240 Availability Stainless Steel 317 (317L) is available in Stainless Steel Bars (Round, Hex, Flat), Stainless Steel Tubes (Seamless or Welded),Stainless Steel Pipe Fittings, Stainless Steel Flanges, Stainless Steel Pipes (Seamless or Welded). SpecificationsStainless Steel 317 / 317LAISI317 / 317LUNSS31700 / S31703Werkstoff Nr.1.4449 / 1.4438 Applications Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining,Sewage treatment, Natural gas and Pressure vessels and other industries. All 317/317L at wilsonpipeline Pipe is certified to 317/317L which we stock at our warehouse in the CN with the capabilities to supply directly to countries across the world in all Stainless Steel Flanges, Stainless Steel Pipe Fittings, and Stainless Steel Pipes. Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

Exhibition: The 6th International Water Technology Exhibition. Date: 20-22 May, 2015. Address: Gallagher Convention Centre. Venue: 19 Richards Drive, Johannesburg Gauteng, Midrand, South Africa. Organizer: Exhibition Management Services (EMS). Industries: Environmental Protection, Water Management and Treatment. Products and Services: Sourcing, extracting and storing water equipments and services; Treatment for potable water; Water supply; Treatment and disposal of wastewater; Renovation and rehabilitation of pipe and sewage systems; Sanitation; Drainage and flood prevention systems; Irrigation systems; Desalination systems; Mine Water; Advanced Irrigation Systems; Desalination; Water Management and Flow Control; Water Quality and Water Treatment; Waste Water Treatment; Monitoring and Measurement Devices; Leakage Control; Water Security; Research and Development. As an international exhibition for water management, treatment, sanitation and waste water, Watertec Africa has been held for five times. It is held every two years. The 6th Watertec Africa will display all sorts of water treatment technology and equipments recently. Watertec Africa is the biggest trade fair in the pump, valve and water treatment industries of South Africa. It has attracted many reputable enterprises like Sylem, KSB, ABO and so on. Watertec Africa is the best platform for enterprises in related field from various countries to expand their business in African market and even global market.

Stainless Steel 317L (UNS S31703) is a molybdenum-bearing austenitic stainless steel with greatly increased resistance to chemical attack as compared to the conventional chromium-nickel austenitic stainless steel pipe such as SS 304 and SS 316L. Specifications The following specifications cover Stainless Steel 317L AISI 317L ASTM A167 ASTM A182 ASTM A213 ASTM A240 ASTM A249 ASTM A312 ASTM A774 ASTM A778 ASTM A813 ASTM A814 DIN 1.4438 QQ S763 UNS S31703 Related Metals: 3R64(tm) AF 317L(tm) Chemistry Data : Carbon 0.03 max Chromium 18 – 20 Iron Balance Manganese 2 max Molybdenum 3 – 4 Nickel 11 – 15 Phosphorus 0.045 max Silicon 1 max Sulphur 0.03 max Forms Stainless Steel Flanges – Slip on flanges, Blind flanges, Lap joint flanges, Welding neck flanges, Spectacle flanges, TG flanges, Socket welding flanges and Threaded flanges, Square flanges. Stainless Steel Pipe Fittings – Butt Welding Fittings, Forged Fittings, 180 Degree Elbows, 90 Degree Elbows, 45 Degree Elbows, 30 Degree Elbows, Equal Tee, Reducing Tee, Concentric Reducer, Eccentric Reducer, Lap Joint Stub End, Cap, Cross. Stainless Steel Pipes.Principal Design Features317L is a low carbon version of 317 stainless. It possesses the same high strength and corrosion resistance and will produce stronger welds due to its low carbon content. Many users are shifting over to this alloy in lieu of 304 and 316 as availability and cost improves.ApplicationsChemical and petrochemical process equipment, pulp and paper manufacturing and condensers in fossil and nuclear fueled power generation stations.MachinabilityLow 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.WeldingAll common fusion and resistance methods except oxyacetylene welding have proven successful. Use AWS E/ER 317L filler metal for best results.Hot WorkingAll common hot working processes are possible with this alloy. Heat to 2100-2300 F (1149-1260 C). Avoid working this material below 1700 F (927 C). For optimum corrosion resistance, a post-work annealing is recommended.Cold WorkingShearing, stamping, heading and drawing can be successfully performed . To remove internal stresses, a post-work annealing is recommended.Annealing1850-2050 F (1010-1121 C), followed by rapid cooling.HardeningThis alloy does not respond to heat treatment. Cold work will cause an increase in both hardness and strength. Physical Data :Density (lb / cu. in.)0.29Specific Gravity7.9Specific Heat (Btu/lb/Deg F – [32-212 Deg F])0.12Electrical Resistivity (microhm-cm (at 68 Deg F))444Melting Point (Deg F)2550Modulus of Elasticity Tension28 Applications Grade 317L stainless steel is widely used in the following applications: Condensers in fossil Pulp and paper manufacturing Nuclear fueled power generation stations Chemical and petrochemical process equipment. Stainless Steel Pipes and Stainless Steel Tubes Stainless Steel Pipe Fittings Stainless Steel Flanges Stainless Steel Forgings Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

317L Stainless Steel is a molybdenum bearing austenitic chromium nickel steel similar to type 316 Stainless Steel, except the alloy content in 317L Stainless Steel is somewhat higher. It has a supperior corrosion resistance in special applications where it is desired to reduce contamination to a minimum. 317L Stainless Steel was developed primarily to resist more effectively the attack of sulfurous acid compounds. Howerver, its proven ability to combat corrosion has widened its use considerably and is now being used for many other industrial applications. The low carbon content of 317L Stainless Steel provides immunity to intergranular corrosion in applications where heavy cross sections cannot be annealed after welding or where low temperature stress relieving treatments are desired. Availability – Stainless Steel 317L Seamless Stainless Steel Pipes 1/2″ – 8″ Stainless Steel Tubes 1/2″ – 8″ Weld Stainless Steel Pipes 1/2″ – 12″ Stainless Steel Pipe Fittings 1/2″ – 12″ Stainless Steel Flanges 1/2″ – 12″ Specifications – Stainless Steel 317LASTM A312, A403, A182ASME SA312, SA403, SA182 Chemical Composition – Stainless Steel 317LCCrMnMoNiPSSiMax MaxMax  MaxMaxMax0.08%24% – 26%2.0%0.75%19% – 22%0.045%0.03%0.75% Design Features – Stainless Steel 317L A molybdenum bearing austenitic chromium nickel steel with an alloy content somewhat higher than the 316 grades. Superior corrosion resistance in difficult environments. Higher creep, stress-to-rupture and tensile strengths than other stainless steels. Reduced intergranular precipitation of chromium carbides during welding and stress relieving as well as minimized possibility of corrosion failure from intergranular attack due to low carbon content. Resistance to pitting and crevice corrosion making 317L a successful life-cost product in a variety of highly corrosive environments. Typical Applications – Stainless Steel 317L Flue gas desulfurization scrubber systems Chemical and petro-chemical processing equipment Pulp and paper plants Food processing equipment Textile equipment Stainless Steel Flanges Stainless Steel Pipe Fittings Condensers in power generation Stainless Steel Pipes Stainless Steel Tubes Tensile Requirements – Stainless Steel 317L Tensile Strength (KSI): 75 Yield Strength (KSI): 30 Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

317 stainless steel, also known as UNS S31700 and Grade 317, is primarily comprised of 18% to 20% chromium and 11% to 15% nickel along with trace amounts of carbon, phosphorus, sulfur, silicon and balanced with iron. UNS S31700/S31703 commonly known as 317/317L Stainless Steel is the low carbon content version of Stainless Steel 317 for welded structures. Features and advantages of both 317 Stainless Steel and 317L Stainless Steel include increased strength, corrosion resistance (including crevice and pitting), higher tensile strength and a higher stress-to-rupture ratio. Both grades resist pitting in acetic and phosphoric acids. With respect to cold working of 317 Stainless Steel and 317L Stainless Steel, stamping, shearing, drawing and heading can all be successfully performed. In addition, annealing can be performed on both grades between 1850 F and 2050 F, followed by rapid cooling. Furthermore, all common hot working methods are possible with 317 Stainless Steel and 317L Stainless Steel, between 2100 F and 2300 F. Industries that use 317 Stainless Steel and 317L Stainless Steel include: Chemical Food processing Petrochemical Pharmaceutical Power generation Pulp and Paper Products partially or completely constructed of 317 Stainless Steel and 317L Stainless Steel include: Stainless Steel Flanges Boilers Stainless Steel Tubes Stainless Steel Pipe Fittings Heat exchangers Outlet and inlet ductwork Stainless Steel Pipes Piping systems Pressure vessels Slurry tanks Stack liners Stainless Steel Bars Stainless Steel ValvesSTOCKING DIAMETERS1/4 TO 10MATERIAL LENGTHSUP TO 24 Stainless Steel Bars SPECIFICATIONSUNSTYPEAMSASTMFEDERALCHARACTERISTICSS31700317–A-276 A-314QQ-S-763317 contains a higher alloy content improving basic advantages of 316. Stainless Steel Bars CHEMISTRY ANALYSISCMNPSSICRNIMOCUOTHERM/NM.082..045.031..18-20.11.-15.3.-4. NM Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

317L Stainless Steel Overview Stainless Steel 317L is a molybdenum bearing, low carbon content “L” grade austenitic stainless steel that provides improved corrosion resistance over 304L and 316L stainless steels. The low carbon provides resistance to sensitization during welding and other thermal processes. Stainless Steel 317L is non-magnetic in the annealed condition but may become slightly magnetic as a result of welding. Corrosion Resistance 317L Stainless Steel has excellent corrosion resistance in a wide range of chemicals, especially in acidic chloride environments such as those encountered in pulp and paper mills. Increased levels of chromium, nickel and molybdenum compared to 316L stainless steel improve resistance to chloride pitting and general corrosion. Resistance increases with molybdenum alloy content.317L Stainless Steel is resistant to sulfuric acid concentrations up to 5 percent at temperatures as high as 120°F (49°C). At temperatures under 100°F (38°C) this alloy has excellent resistance to solutions of higher concentration. However, service tests are recommended to account for the affects of specific operating conditions that may affect corrosion behavior. In processes where condensation of sulfur-bearing gases occurs, 317L Stainless Steel is much more resistant to attack at the point of condensation than conventional alloy 316. The acid concentration has a marked influence on the rate of attack in such environments and should be carefully determined by service tests. Chemical Composition, % Ni Cr Mo Mn Si 11.0 – 15.0 18.0 – 20.0 3.0 – 4.0 2.0 Max .75 Max C N S P Fe 0.03 Max 0.1 Max 0.03 Max 0.045 Max Balance What are the characteristics of 317L Stainless Steel? Improved general and localized corrosion to 316L stainless steel Good formability Good weldability In what applications is 317L Stainless Steel used? Flue-gas desulfurization systems Stainless Steel Flanges Chemical process vessels Stainless Steel Pipe Fittings Petrochemical Pulp and Paper Condensers in power generation Stainless Steel Pipes Stainless Steel Tubes Mechanical Properties Minimum Specified Properties, ASTM A240 Ultimate Tensile Strength, ksi Minimum .2% Yield Strength, ksi MinimumElongation Percent Hardness Max. 75 30 35 217 Brinell Welding 317L Stainless Steel 317L Stainless Steel is readily welded by a full range of conventional welding procedures (except oxyacetylene). AWS E317L/ER317L filler metal or austenitic, low carbon filler metals with molybdenum content higher than that of 317L, or a nickel-base filler metal with sufficient chromium and molybdenum content to exceed the corrosion resistance of 317L should be used to weld 317L steel. Forms of 317L Stainless Steel Available at wilsonpipeline Stainless Steel Sheets Stainless Steel Plates Stainless Steel Bars Stainless Steel Pipes & Stainless Steel Tubes (welded & seamless) Stainless Steel Pipe Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples) Stainless Steel Welding Wire and Stainless Steel Welding Electrode Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)