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ASTM A234 WP91 PIPE FITTINGS TYPES Elbows, Long Radius Elbow, Short Radius Elbow, Bend, Long Radius Bends, Piggable Bends, Tee, Equal Tee, Reducing Tee, Cross, Reducer, Concentric Reducer, Eccentric Reducer, Pipe End Caps. ASTM A234 WP91 Pipe Fittings Dimensions ASTM A234 WP91 Pipe Fittings Weight ASTM A234 WP91 Specification Scope ASTM A234 covers wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, and MSS-SP-97. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. Process Killed steel, with forgings, bars, plates, sheet, and seamless or fusion-welded tubular products with filler metal added. Forging or shaping operations performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations. Heat Treatment After forming at an elevated temperature, fittings are cooled to a temperature below the critical range under suitable conditions to prevent injurious defects caused by too rapid cooling, but in no case more rapidly than the cooling rate in still air. Heat treatment temperatures specified are metal (part) temperatures. Heat-treated fittings are to be treated according to paragraph 7 in Specification A960/A960M. ASTM A234 WP91 Pipe Fittings Chemical Requirements Composition, %WPB B,C,D,E,WPC C,D,E,WP11 CL1WP11 CL2,WP11 CL3WP22 CL1,WP22 CL3WP5 CL1,WP5 CL3Carbon0.30.350.05–0.150.05–0.200.05–0.200.05–0.150.05–0.150.150.15Manganese0.29–1.060.29–1.060.30–0.600.30–0.800.30–0.800.30–0.600.30–0.600.30–0.600.30–0.60Phosporus0.050.050.030.040.040.040.040.040.04Sulfur0.0580.0580.030.040.040.040.040.030.03Silicon0.10 min0.10 min0.50–1.000.50–1.000.50–1.000.50.50.50.5Chromium0.40.41.00–1.501.00–1.501.00–1.501.90–2.601.90–2.604.0–6.04.0–6.0Molybdenum0.15 max0.15 max0.44–0.650.44–0.650.44–0.650.87–1.130.87–1.130.44–0.650.44–0.65Nickel0.40.4…………………Copper0.40.4…………………OthersVanadium 0.08Vanadium 0.08…………………WP9 CL1,WP9 CL3WP91Carbon0.150.150.08–0.12Manganese0.30–0.600.30–0.600.30–0.60Phosporus0.030.030.02Sulfur0.030.030.01Silicon110.20–0.50Chromium8.0–10.08.0–10.08.0–9.5Molybdenum0.90–1.100.90–1.100.85–1.05Nickel……0.4Copper………Others……Vanadium 0.18–0.25 Columbium 0.06-0.10 Nitrogen 0.03-0.07 Aluminum 0.02F Titanium 0.01F Zirconium 0.01F

ASTM A420 WPL6 Buttweld Fittings Cangzhou wilson pipeline sales@wilsonpipeline.com Is A Global Leading Manufacturer For Your A420 Low Temp Carbon Steel WPL6 Pipe Fittings Needs. We are a manufacturer, supplier and exporter of ASTM A420 WPL6 Pipe Fittings which abide by the specifications of ASTM A420, which include wrought Carbon steel as well as Alloy Steel fittings, of seamless and welded construction. Workable under temperatures ranging from moderate to elevated, our fittings ensure better performance in the pressure piping and pressure vessel fabrication applications. We offer innovation and quality packaged into a durable product line that embodies excellence. We are dedicated to the highest level of quality, contributing premium goods and services for various industries. Our preference is our customer and his/her complete satisfaction. We hold a study the on market courses and requirements, to invent new, sustainable and cost-effective products able to withstand customization. Our products are 100% durable. ASTM A420 WPL6 Fittings Specifications : ANSI/ASME B16.9, B16.28, MSS-SP-43. Standard : ASTM A420 / ASME SA420 ASTM A420 WPL6 Fittings Size : ½”NB to 48″NB in Sch 10s, 40s, 80s, 160s, XXS. Schedules : Sch.40 to Sch.XXs Type : Seamless / Welded, Elbow, Tees, Reducers, Caps ASTM A420 WPL6 Fittings Dimension ASTM A420 WPL6 Fittings Weight ASTM A420 WPL6 Fittings Chemical Composition CHEMICAL COMPOSITION OF ASTM A420ElementsWPL6, %WPL9, %WPL3, %WPL8, %Carbon [C]≤0.30≤0.20≤0.20≤0.13Manganese [Mn]0.50-1.350.40-1.060.31-0.64≤0.90Phosphorus [P]≤0.035≤0.030≤0.05≤0.030Sulfur [S]≤0.040≤0.030≤0.05≤0.030Silicon [Si]0.15-0.40…0.13-0.370.13-0.37Nickel [Ni]≤0.401.60-2.243.2-3.88.4-9.6Chromium [Cr]≤0.30………Molybdenum [Mo]≤0.12………Copper [Cu]≤0.400.75-1.25……Columbium [Cb]≤0.02………Vanadium[V]≤0.08……… *For grade WPL6, the limit for Columbium may be increased up to 0.05% on heat analysis and 0.06% on product analysis. *Fittings of WPL3 made from plate or forgings may have 0.90 % max manganese. *Fittings of WPL8 made from plate may have 0.98 % max manganese. ASTM A420 WPL6 Fittings Mechanical PropertiesASTM A420/ A420MTENSILE STRENGTH, MIN.YIELD STRENGTH, MIN.ELONGATION %, MINGradeksiMPaksiMPaLongitudinalTransverseWPL665-95415-655352402212WPL963-88435-6104631520…WPL365-90450-620352402214WPL8100-125690-8657551516… *All the elongation values are on the basis of standard round specimen, or small proportional specimen, min % in 4 D. Impact Test Properties Since these pipe fittings are primarily used for low-temperature service, the properties of charpy V-notch impact test must be considered. CHARPY IMPACT REQUIREMENTS FOR WPL6, WPL9, AND WPL3Size of SpecimenA*B*mmft·lbfJft·lbfJ10 by 10.01317.61013.610 by 7.51013.6810.810 by 5.079.557.010 by 2.545.434.1 A*Charpy V-Notch Impact Value Required for Acceptance (Average of Three Specimens) B*Minimum Charpy V-Notch Impact Value Without Requiring Retest (One Specimen Only of a Set) IMPACT TEST TEMPERATUREGrade°F [°C]WPL6−50 [−45]WPL9−100 [−75]WPL3−150 [−100]

Specification of ASTM A105 socket weld elbows: Size: 1/8″-4″,DN8-DN100 Wall Thickness: SCH 10,SCH 40,SCH 80,SCH 160,XS,XXS Pressure: Class 3000,Class 6000,Class 9000 Connection Method: socket welding Production standards for ASTM A105 socket weld elbows: ASME standard is very popular overseas,and ASME B16.11 is served for forged steel pipe fittings.But there are many other standards are available such as BS 3799,JIS b2316. Coating of ASTM A105 socket weld elbows: We manufacture ASTM A105 socket weld elbows with different coating such as black,yellow paint,varnish,anti-rust oil,galvanized,or as for clients’requirements. Packing of ASTM A105 socket weld elbows: We packed the products with wooden case,plywood case,pallet,or as for clients’ requirements. Application of ASTM A105 socket weld elbows: The ASTM A105 socket weld elbows are widely used in industry field,like oil,gas,power plant,water treatment,chemical-industry etc. Chemical Composition of ASTM A105 socket weld elbows: For each reduction of 0.01% below the specified carbon maximum(0.35%),an increase of 0.06% manganese above the specified maximum(1.05%) will be permitted up to a maximum of 1.65%. ElementCMnPSSiCuNiCrMoVComposition,%0.35,max0.6-1.050.035,max0.04o,max0.10-0.350.40,max0.4,max0.3,max0.12,max0.08,max The sum of copper,nickel,molybdenum and vanadium shall not exceed 1.00% The sum of chromium and molybdenum shall not exceed 0.32%. Mechanical Properties of ASTM A105 socket weld elbows:Tensile Strength,min,ksi[Mpa]Yield Strength,min,ksi[Mpa]Elongation70,[485]36,[250]30 (%) Haihao Group manufacture & supply pipeline products more than 30 years,our products contain butt welding pipe fittings,forged pipe fittings,steel pipes and flanges.We supply those products with different materials such as carbon steel,stainless steel and alloy steel.

ASTM A234 WP11 Alloy Steel Buttweld Pipe Fittings Cangzhou wilson pipeline sales@wilsonpipeline.com Is A Leading Supplier For Your ASTM A234 Alloy Steel WP11 Buttweld Pipe Fittings Needs. Cangzhou wilson pipeline sales@wilsonpipeline.com manufacturer A234 WP11 fittings made from high quality alloy steel to ASTM A234 which can be used in various piping systems. The advantages of butt weld include: Welding a fitting to the pipe means that it is permanently leak proof. The continuous metal structure formed between the pipe and fitting adds strength to the system. Smoother inner surface and gradual direction changed reduce the pressure losses and turbulence and minimises the action of corrosion and abrasion. A welded system utilises minimal space. ASTM A234 WP11 Pipe Fittings Types Elbows, Long Radius Elbow, Short Radius Elbow, Bend, Long Radius Bends, Piggable Bends, Tee, Equal Tee, Reducing Tee, Cross, Reducer, Concentric Reducer, Eccentric Reducer, Pipe End Caps. ASTM A234 WP11 Pipe Fittings Dimensions ASTM A234 WP11 Pipe Fittings Weight ASTM A234 WP11 PIPE FITTINGS Specification Scope ASTM A234 covers wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, and MSS-SP-97. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. Process Killed steel, with forgings, bars, plates, sheet, and seamless or fusion-welded tubular products with filler metal added. Forging or shaping operations performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations. Heat Treatment After forming at an elevated temperature, fittings are cooled to a temperature below the critical range under suitable conditions to prevent injurious defects caused by too rapid cooling, but in no case more rapidly than the cooling rate in still air. Heat treatment temperatures specified are metal (part) temperatures. Heat-treated fittings are to be treated according to paragraph 7 in Specification A960/A960M. ASTM A234 WP11 Pipe Fittings Chemical Requirements Composition, % WPB B,C,D,E,WPC C,D,E,WP11 CL1WP11 CL2,WP11 CL3WP22 CL1,WP22 CL3WP5 CL1,WP5 CL3Carbon0.30.350.05–0.150.05–0.200.05–0.200.05–0.150.05–0.150.150.15Manganese0.29–1.060.29–1.060.30–0.600.30–0.800.30–0.800.30–0.600.30–0.600.30–0.600.30–0.60Phosporus0.050.050.030.040.040.040.040.040.04Sulfur0.0580.0580.030.040.040.040.040.030.03Silicon0.10 min0.10 min0.50–1.000.50–1.000.50–1.000.50.50.50.5Chromium0.40.41.00–1.501.00–1.501.00–1.501.90–2.601.90–2.604.0–6.04.0–6.0Molybdenum0.15 max0.15 max0.44–0.650.44–0.650.44–0.650.87–1.130.87–1.130.44–0.650.44–0.65Nickel0.40.4…………………Copper0.40.4…………………OthersVanadium 0.08Vanadium 0.08…………………WP9 CL1,WP9 CL3WP91Carbon0.150.150.08–0.12Manganese0.30–0.600.30–0.600.30–0.60Phosporus0.030.030.02Sulfur0.030.030.01Silicon110.20–0.50Chromium8.0–10.08.0–10.08.0–9.5Molybdenum0.90–1.100.90–1.100.85–1.05Nickel……0.4Copper………Others……Vanadium 0.18–0.25 Columbium 0.06-0.10 Nitrogen 0.03-0.07 Aluminum 0.02F Titanium 0.01F Zirconium 0.01F B Fittings made from bar or plate may have 0.35 max carbon.A When fittings are of welded construction, the grade and marking symbol shown above shall be supplemented by letter “W”. C Fittings made from forgings may have 0.35 max carbon and 0.35 max silicon with no minimum. D For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % manganese above the specified maximum will be permitted, up to a maximum of 1.65 %. E The sum of Copper, Nickel, Chromium, and Molybdenum shall not exceed 1.00 %. F Applies both to heat and product analyses. ASTM A234 WP11 Pipe Fittings Mechanical PropertiesWPBWPC, WP11-CL2WP11-CL1, WP22-CL1 WP5-CL1 WP9-CL1WP11-CL3, WP22-CL3 WP5-CL3 WP9-CL3WP91Tensile strength, minimum unless a range is given ksi (MPa)60 (415)70 (485)60 (415)75 (520)90 (620)Yield,strength, min ksi (MPa) (0.2% offset or 0.5% extension under-load)35 (240)40 (275)30 (205)45 (310)60 (415) ElongationWPB, WPC, WP11, WP22WP91LongitundinalTransverseLongitundinalTransverseStandard round specimen, or small proportioanl specimen, min % in 4 D22142013Rectangular speicmen for wall thickness 5/16″ and over, and for all small sizes tested in full section; min % in 2 in.3020 ARectangular speicimen for wall thickness less than 5/16″; min % in 2 in (1/2″ wide specimen)BB A WPB and WPC fittings manufactured from plate shall have a minimum elongation of 17 %. B For each 1⁄32 in. [0.79 mm] decrease in wall thickness below 5⁄16 in. [7.94 mm], a deduction of 1.5 % for longitudinal and 1.0 % for transverse from the values shown above is permitted Reference Documents ASTM A216/A216M Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service ASTM A217/A217M Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service ASTM A960/A960M Specification for Common Requirements for Wrought Steel Piping Fittings ASME B16.9 Steel Butt-Welding Fittings ASME B16.11 Forged Steel Fittings, Socket Welding and Threaded

Material: Stainless steel:SS304/SS304L/SS316/SS316L/SS321/SS347H/SS316Ti/s32750/904L/S31803/2205/ inconel 600/ inconel 625/ inconel 600H/ incoloy 800/ incoloy 800h/ incoloy 825 etc.. Our main clients are from Turkey, Italy, France, Spain, South Africa, Moroco, Dubai, Iran, Syria, Singapore, Vietnam, Austria, USA, Canada, Mexico, Korea, Thailand, India, Bulgaria, Russia and so on Usage: Petroleum industry, Refinery Company, fertilizer industry, power station, shipbuilding, onshore platform sales@wilsonpipeline.com www.wilsonpipeline.comNamePipe FittingsSize1/2″-36″ for seamless 5″-80″ for weldThicknessSCH10,SCH20,SCH30,STD SCH40, SCH60,XS,SCH80,SCH100,SCH120,SCH140,SCH160,XXSMaterialASTM A403 WP304,304L,316,316L,321.1Cr18Ni9Ti, 00Cr19Ni10,00Cr17Ni14Mo2,etc. DIN 1.4301,1.4306,1.4401,1.4571. JIS SUS304,SUS304L,SUS316,SUS316L,SUS321. GB 10#,20#,20G,23g,20R,Q235,16Mn, 16MnR,1Cr5Mo,12CrMo,12CrMoG,12Cr1Mo,etc.Surface TreatmentTransparent oil, rust-proof black oil or hot galvanizedPackingIn wooded cases or pallets,or as for clients’ requirementsSpecial designas your drawingCertificationAPI CE and ISO 9001:2008TestDirect-reading Spectrograph,Hydrostatic testing machine,X-ray detector,UT flaw detector,Magnetic particle detectorEquipmentPress machine ,Bending machine,Pushing Machine,electric beveling machine Sand-blasting machine,etcApplicationsPetroleum, chemical, machinery, boiler,electric power, shipbuilding, paper making, construction, etc

ASTM A182 CHROME MOLY ALLOY STEEL PIPE FLANGES ASTM A182 F22, F11, F5, F9 & F91 Alloy Steel Flanges Cangzhou wilson pipeline sales@wilsonpipeline.com Is A Global Leading Manufacturer For Your ASTM A182 F22, F11, F5, F9 & F91 Chrome Moly Alloy Steel Pipe Flanges Needs. Chromium-Molybdenum Alloy Steel or Chrome-Moly, CrMo is an alloy steel intended for high temperature and high pressure services. Chrome-Moly is used in the power generation industry and the petro-chemical industry because of its tensile strength, corrosion resistance and high-temperature strength. Chrome-Moly has a better strength to Weight ratio than steel, which enables designers to use thinner wall pipe or smaller diameter tubing to reduce overall weight. Chromium-Molybdenum Alloy Steel has strong resistance to rupturing at high temperatures and high pressures. Chrome-Moly is also resistant to cracking from hydrogen attack and hot sulfide corrosion cracking. Chrome-Moly grades P11, P22, P91 and P92 are used in the power industry. Chrome-Moly grades P5 and P9 are used in petro-chemical refinery processes. Chrome-Moly Forged Fittings & Flanges are available in grades F5, F9, F11, F22, F91, F92. Chrome-Moly Alloy Butt Weld Fittings are available in grades WP5, WP9, WP11, WP22, WP91, WP92. F11 and F22 material meet NACE-MRO 175. Chrome Moly Alloy Steel Pipe Flanges Type: Buttweld chrome moly flanges Raised Face Slip On chrome moly flanges Raised Face Socket Weld chrome moly flanges Raised Face Threaded chrome moly flanges Raised Face Blind chrome moly flanges Raised Face Weld Neck chrome moly flanges Raised Face Lap Joint Flanges Raised Face Plate Flanges Orifiace Falnges Ring Joint Flanges Chrome Moly Alloy Pipe Flange Specification: ASTM A182 Chrome Moly Alloy Flange Size: 1/2″ through 120″ Chrome Moly Alloy Pipe Flange Pressure Rating: 150#, 300#, 400#, 600#, 900#, 100#, 2500# Chrome Moly Alloy Pipe Flange Material Grades: Trade Name Grade UNS # Flanges 1 1/4 Chrome F11 Class 1 K11597 A182 / SA182 1 1/4 Chrome F11 Class 2 K11572 A182 / SA182 1 1/4 Chrome F11 Class 3 K11572 A182 / SA182 2 1/4 Chrome F22 Class 1 K21590 A182 / SA182 2 1/4 Chrome F22 Class 3 K21590 A182 / SA182 5 Chrome F5 K41545 A182 / SA182 9 Chrome F9 K90941 A182 / SA182 F91 F91 K90901 A182 / SA182 F92 F92 K92460 A182 / SA182 Chrome Moly Alloy Pipe Flanges Dimensions Chrome Moly Alloy Pipe Flanges Weight ASTM A182 F22, F11, F5, F9 & F91 Chrome Moly Alloy Pipe Flanges Chemical Properties COMPOSITION GRADE C Mn Cr Mo Cb N Al V F5 0.15 max 0.3 – 0.6 4-6 0.44 – 0.65 F9 0.15 max 0.3 – 0.6 8-10 0.9 – 1.1 F11 0.1 – 0.2 0.3 – 0.8 1 – 1.5 0.44 – 0.65 F22 0.05 – 0.15 0.3 – 0.6 2 – 2.5 0.87 – 1.13 F91 0.08 – 0.12 0.3 – 0.6 8 – 9.5 0.85 – 1.05 0.06 – 0.1 0.03 – 0.07 0.4 max 0.18 – 0.25 ASTM A182 F22, F11, F5, F9, F1, F12 & F91 Chome Moly Alloy Steel Flanges Mechanical Properties Grade Tensile Strength Yield Strength (0.2%Offset) Elongation Alloy Steel A182 F1 275 485 20% Alloy Steel A182 F5 275 485 20% Alloy Steel A182 F9 380 585 20% Alloy Steel A182 F11 205 415 20% Alloy Steel A182 F12 275 485 20% Alloy Steel A182 F22 205 415 20% Alloy Steel A182 F91 380 585 20% Design Features – Chrome-Moly Strong resistance to rupturing at high temperatures and high pressures May be used for Hydrogen Sulfide Corrosion Services Resistant to cracking from hydrogen attack and embrittlement Resistant to hot sulfide corrosion cracking Can be used for NACE Applications where sour environments are under high temp and pressure Can be used in NACE-MRO 175 Sour Service Ideal for creep rupture applications Can handle high temperatures with very low elasticity

Standards and industry go hand in hand. You can’t have one without the other. Because pipe is so common among so many industries, it’s no surprise that a number of different standards organizations impact the production and testing of pipe for use across a wide array of applications. As you’ll see, there’s both some overlap as well as some differences among the standards organizations that buyers should understand so that they can ensure accurate specs for their projets. ASTM ASTM International provides industrial material and service standards across a wide range of industrial sectors. The organization has published more than 12,000 standards currently in use in industries worldwide. More than 100 of those standards pertain to steel pipe, tubing, fittings and flanges. Unlike some standards organizations that impact steel pipe in specific industrial sectors, ASTM standards cover a wide variety of pipe used in just about every industry you can think of. For example, American Piping Products stocks a full range of A106 pipe. The A106 standard covers seamless carbon steel pipe for high-temperature service. That standard does not necessarily limit pipe to any certain industrial application. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes ASME The American Society of Mechanical Engineers began publishing standards for industrial tools and machine parts in 1880 and has been a driving force behind safety improvements to boilers and pressure vessels used across industrial sectors. As pipe commonly accompanies pressure vessels, ASME standards cover a wide variety of pipe applications across many industries, same as ASTM. In fact, the ASME and ASTM pipe standards are largely identical. Any time you see a pipe standard expressed with both an ‘A’ and an ‘SA’—an example is A/SA 333—it’s a sign that the material meets both the ASTM and ASME standards. API As its name indicates, the American Petroleum Institute is an industry-specific organization that, among other things, develops and publishes standards for pipe and other materials used in the oil & gas industry. Piping rated under an API standard can be very similar in material and design to pipes used in other industries under other standards. API standards are more strict and include additional testing requirements, but there is some overlap. API 5L pipe, for example, is commonly used in oil & gas settings. The standard is similar to A/SA 106 and A/SA 53. Some grades of API 5L pipe comply with the A/SA 106 and A/SA 53 standards and therefore can be used interchangeably. But A/SA 106 and A/SA 53 pipe do not comply with all API 5L criteria. ANSI The American National Standards Institute was founded following a gathering of several industry standards organizations in 1916 with the goal of developing voluntary consensus standards in the U.S. ANSI joined with similar organizations in other countries to form the International Organization for Standardization (ISO). The Organization publishes standards accepted by industrial stakeholders from across the world. ANSI also acts as an accrediting body that endorses standards developed by individual organizations for worldwide adoption. Many ASTM, ASME and other standards have been endorsed by ANSI as acceptable common standards. One example is the ASME B16 standard for flanges, valves, fittings and gaskets. The standard was initially developed by ASME, but it’s been endorsed for use worldwide by ANSI. ANSI’s efforts have helped open international markets for producers and suppliers of pipe due to its role in the development and adoption of common standards accepted globally. The right pipe supplier With decades of experience supplying pipe to customers of all industries all over the world, wilson pipeline  Piping Products understands the complexity —and the importance— of the many standards that govern the production and testing of pipe. Let us use that experience for the good of your business. By choosing American Piping Products as your supplier, you can focus on what matters most to you instead of getting bogged down in the details. We’ll handle that.

They’re the most commonly used carbon steel pipe types in industry today, and they’re very similar. But while the differences between A106 and A53 are few, they matter a great deal in terms of when and where each is specified. To ensure you purchase the correct pipe and receive it quickly, two things are a must: A basic understanding of seamless and welded seam pipe, and providing detailed specs. A106 vs. A53 — Welded vs. seamless steel pipe CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes If you read the ASTM and ASME standards for A106 and A53 pipe, you’d quickly observe how similar they are in terms of chemical makeup and manufacture. The most important difference is that pipe meeting the A106 standard must be seamless while pipe meeting A53 can either be seamless or welded. Welded seam pipe is made by curling a steel plate into a cylinder and then joining the edges via a weld. Seamless pipe is made by piercing cylindrical bars of steel through the middle while it’s hot, creating the same shape but without a seam. The reason for the difference lies in the suitable applications for each type. A53 pipe is best suited for transport of air, water, steam and oil in low- and medium pressure applications across the industrial spectrum. It’s also commonly used as structural steel. A106 pipe is formulated specifically for high-temperature and high-pressure service, usually in power generation applications. High-pressure, high-heat service environments put added stress on pipe, so seamless pipe types are preferred in those settings since they’re at less risk of failure under stress than their welded counterparts. Differences in chemical makeup In addition to the way the A106 and A53 standards dictate pipe manufacture, the standards feature slight differences in chemical makeup. Refer to our A106 vs. A53 comparison chart to see them all, but the most noteworthy difference is the presence of silicon in A106 pipe and its absence in A53. Silicon as an alloying element improves heat resistance in A106 pipe, which is rated for high-temperature service. Without it, regular exposure to high temperatures can weaken pipe over time, increasing its risk of failure. The A106 and A53 standards also include varying amounts of sulfur and phosphorus depending on the grade. These elements are normally considered impurities in steel, so their incorporation in piping is minimal. However, the trace amounts of these elements add machinability to steel pipe. Purchasing A106 vs. A53 When buying A106 or A53 carbon steel pipe, clarity is the most important factor. Usually whoever does the actual purchasing is not a piping expert. They’re often buyers working from a document provided by an engineer. In cases where specs are not clear, a pipe seller can help a buyer determine what is needed by asking questions. However, this can take added time and the buyer may not know the answers. The pipe sale quickly turns into a game of phone tag. To avoid this, buyers should make sure specs are crystal clear. Also, keeping good records will add efficiency to piping procurement. If a firm regularly purchases A106 or A53 pipe, that information should be kept handy as a reference. At Wilson pipelline Products, our piping experts are trained to assist buyers in determining whether A106 vs. A53 is the right pipe for their application. If you already know what you need, use our product lookup to see if it’s in stock. We keep the industry’s best inventory of piping products in yards in Houston and Chicago, well-placed to quickly deliver whatever you need, wherever you are. If you’re still researching suppliers, our steel pipe buyer’s guide contains information about piping applications, industry organizations and standards and tips to make sure your purchase is as smooth as possible.

As industrial applications have evolved and grown more complex, the piping products and systems that serve them have had to keep pace. While many pipe manufacturing methods exist, the most prominent discussion in the industry compares electric resistance welded (ERW) vs. seamless (SMLS) steel pipe. Both ERW and seamless steel pipe manufacturing methods have been in use for decades; over time, the methods used to produce each have advanced. So which is better? CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes Manufacturing welded pipe Welded pipe starts out as a long, coiled ribbon of steel called a skelp. The skelp is cut to the desired length, resulting in a flat rectangular sheet. The width of that sheet’s shorter ends will become the pipe’s outside circumference, a value that can be used to calculate its eventual outside diameter. The rectangular sheets are fed through a rolling machine that curls the longer sides up toward one another, forming a cylinder. In the ERW process, high-frequency electrical current is passed between the edges, causing them to melt and fuse together. An advantage of ERW pipe is that no fusion metals are used and the weld seam cannot be seen or felt. That’s opposed to double submerged arc welding (DSAW), which leaves behind an obvious weld bead that must then be eliminated depending on the application. Welded pipe manufacturing techniques have improved over the years. Perhaps the most important advancement has been the switch to high-frequency electric currents for welding. Prior to the 1970s, low-frequency current was used. Weld seams produced from low-frequency ERW were more prone to corrosion and seam failure. Most welded pipe types require heat treatment after manufacture. Manufacturing seamless pipe Seamless piping begins as a solid cylindrical hunk of steel called a billet. While still hot, billets are pierced through the center with a mandrel. The next step is rolling and stretching the hollow billet. The billet is precisely rolled and stretched until it meets the length, diameter and wall thickness as specified by the customer order. Some seamless pipe types harden as they’re manufactured, so heat treatment after manufacturing is not required. Others do require heat treatment. Consult the specification of the seamless pipe type you’re considering to learn whether it will require heat treatment. Historical perspectives and use cases for welded vs. seamless steel pipe ERW and seamless steel piping exist as alternatives today largely due to historical perceptions. Generally, welded pipe was considered inherently weaker because it included a weld seam. Seamless pipe lacked this perceived structural flaw and was considered safer. While it’s true that welded pipe does include a seam that makes it theoretically weaker, manufacturing techniques and quality assurance regimens each have improved to the extent that welded pipe will perform as desired when its tolerances aren’t exceeded. While the apparent advantage is clear, a critique of seamless piping is that the rolling and stretching process produces an inconsistent wall thickness compared to the more precise thickness of steel sheets destined for welding. The industry standards that govern the manufacture and specification of ERW and seamless steel pipe still reflect those perceptions. For example, seamless piping is required for many high-pressure, high-temperature applications in the oil & gas, power generation and pharmaceutical industries. Welded piping (which is generally cheaper to produce and is more widely available) is specified across all industries as long as the temperature, pressure and other service variables do not exceed parameters noted in the applicable standard. In structural applications, there’s no difference in performance between ERW and seamless steel pipe. While the two can be specified interchangeably, it wouldn’t make sense to specify for seamless when cheaper welded pipe works equally well. Good purchasing practice for welded and seamless steel pipe An important note to make as piping products are specified for a project is that the specification books (such as those provided by ASTM, ASME, ANSI and API, among others) that engineers use to guide the specs they write only list pipe grades without referencing whether they’re produced via ERW or seamless pipe manufacturing. Not all grades can be produced by both means. For example, a potential mix-up can occur if an engineer specifies welded pipe with a large outside diameter and wall thickness without knowing it would be impossible to manufacture it. This error would likely go unnoticed until a purchase order is placed, at which time a pipe supplier would notify the customer that the order couldn’t be fulfilled as written. Also, a good grasp of industry standards could lead to cost savings. The A106 and A53 carbon steel pipe standards are a good example. In this article, we discuss how pipe complying with the former must be seamless while pipe complying with the latter can either be seamless or welded. For example, if an engineer must follow the A53 standard on a given project, he or she may still have the flexibility to choose which type to specify based on the specifics of the application. Show us your specs, request a quote and get your pipe fast Wilson pipeline Products stays fully-stocked with the best inventory of welded and seamless steel piping products in the industry. We source our stock from mills around the world, ensuring buyers get the pipe the need faster regardless of any applicable statutory restrictions. In our steel pipe buyer’s guide, we’ll help you navigate the piping procurement process from start to finish to ensure you get what you need as quickly as possible when it’s time to buy. If a piping purchase is in your near future, request a quote. We’ll provide one that gets you exactly the products you need—fast.

Understanding steel grades for piping procurement As industrial processes and applications have matured, industry organizations have developed unique classifications and specifications for the pipe destined for service in those sectors. There’s lots of overlap among the organizations’ published specs, and likely lots of confusion as well. Buyers can improve their purchasing experience by learning more about how grades of steel are designated for piping and by understanding all the information that should be included on a purchase order. ASTM and ASME Both the American Society of Testing and Methods (ASTM) and the American Society of Mechanical Engineers (ASME) publish piping specs. ASTM and ASME pipe designations for grades of steel are very similar. For example, A106 B is a spec published by ASTM (the ASME spec would be SA106 B). The “A” designates a ferrous material. ‘106’ is an arbitrary number that designates it as a seamless carbon steel pipe suited for high-temperature service. Then, grades (such as A, B or C) are assigned that indicate certain characteristics of the steel based on differences in its chemical makeup and mechanical properties. Pipe sizes are described by using a pipe chart (ANSI/ASME B36.10 and API5L) that includes the outside diameter and wall thickness. The outside diameter can be referred by the nominal pipe size (NPS) or the actual dimension in inches and the wall by stating the schedule or the actual thickness in inches. Note that while ASTM and ASME specs are largely identical, an important difference is that pipe meant for use in pressure systems sometimes requires different or additional quality tests before it complies with the ASME standard. American Piping Products stocks a full range of A/SA106 and A/SA 53 carbon steel pipe. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes AISI and SAE The American Iron and Steel Institute (AISI) and the Society of Automotive Engineers (SAE) share a numbering system to classify steels. AISI/SAE designations only describe the chemical makeup of a steel. They do not include manufacturing, heat treating or testing information. Using 1020 steel as an example, the first digit expresses the steel as a plain carbon steel. The second digit indicates there are no added alloys. The last two digits indicate the steel has around 0.20 percent carbon content. For another example, a popular steel in the piping industry is 4130. The ’41’ indicates the steel contains chromium and molybdenum alloys. The ’30’ indicates the steel has around 0.30 percent carbon content. Again, AISI/SAE designations only classify steels. For example, a buyer who says, “I need 100 feet of 4130” has not provided enough information. The buyer also needs to note specific production and testing information found in an ASTM or ASME spec to get exactly the pipe they need. API Pipe for use in the oil & gas industry are classified by the American Petroleum Institute’s (API) system. API 5L is the most common standard to which line pipe in the oil and natural gas industry is rated. Because that’s merely a standard, additional information is needed to ensure purchase orders are executed accurately. API 5L pipe is broken down into PSL1 and PSL2 delivery conditions; those conditions are further broken down into pipe grades, i.e. Grade B, X42, X52, X65, etc. Buyers should include the combination of the overarching standard, the delivery condition and the grade for the API5L pipe they need. Study grades of steel Buyers who place incomplete or inaccurate orders put their operations at risk of delays or cost overruns. When in doubt, consult with an engineer and refer to the industry standards that govern your application. Also be aware of other factors that play into your purchase: What manufacturer restrictions are in place that may impact your order? Are there any origin restrictions that you need to follow when buying? What pipe lengths and end finishes do you need? Are there specific chemistry requirements needed for the application? Are there age restrictions that may impact your order for export? Suppliers need detailed purchase orders to ensure you get the right pipe the first time.

Sometimes you need to figure out carbon equivalents fast, especially when you’re under a time crunch to get a pipe order in. That’s why American Piping Products is proud to offer its free online Carbon Equivalent Calculator to all those needing quick answers while at your desk or out in the field. A successful and secure weld depends on knowing the combined relationship of the alloying elements to the carbon in the steel pipe you’re using. This relationship (CE) helps the welders or engineers know if preheating or other processes are required for a quality connection. Our Carbon Equivalent Calculator helps you to quickly determine the answer by allowing you to enter the percentages of the different alloys that make up the steel pipe and receive a CE value with just a click of the Calculate button. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes “Offering customers solutions to their problems is critical for our company’s growth,” said Walter Lucas, Vice President of Material Management at American Piping Products. “Answers make our customer’s jobs easier. This online calculator, along with our other online resources, brings value to our customers.” Our Carbon Equivalent Calculator is a fantastic addition to the collection of online tools from Wilson pipelline   Products.   and let Wilson pipeline Products find the right pipe for your project.

Stainless steel square tube is a kind of square tube material. In fact, it is a steel tube with the same length. The strip steel is processed and rolled. Usually, the strip is unpacked, flattened, crimped, welded to form a round tube, and then rolled into a square tube by a round tube and cut to a desired length. Stainless steel square tubes are mainly divided into two types: seamless and welded. The seamless square tube is formed by extruding a seamless tube. For those who want to buy stainless steel square tubes, it is necessary to know the specific price. So today, Xiaobian will tell you about the market price of 4*6 stainless steel square tube. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes Stainless steel square tube use stainless steel square tube is mainly used in construction, machinery manufacturing, steel construction, shipbuilding, solar power support, steel structure engineering, electric power engineering, power plant, agriculture and chemical machinery, glass curtain wall, automobile chassis, airport, boiler construction, high speed Road railings, building construction, pressure vessels, oil storage tanks, bridges, power station equipment, lifting transport machinery and other high-load welded structural parts, etc., are used in a wide range of applications. Stainless steel square tube specifications: 5*5~150*150mm, thickness: 0.4~6.0mm. Stainless steel square tube material: 304, 304L, TP304, TP316L, 316, 316L, 316Ti, 321, 347H, 310S. Stainless steel square tube price: square tube 75-75 (2.5-6.0), square tube 70-70 (2.0-5.0), square tube 60-60 (1.2-5.0); square tube 50-50 (1.0-5.0), square Tube 40-40 (0.8-4.5), square tube 30-30 (0.8-3.0).