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China, Chinese ASTM A268/ASME SA268 Tp410s, Tp409, Tp430, Tp430ti, 17-4pH Martensitic Steel Pipe1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Industrial Pipeline PipesStainless Steel PipeTp409Tp430Tp430ti17-4pH Martensitic Steel PipeTp430 PipeA268 Tp410 Steel Pipe
Guangzhou Kingmetal Steel Industry Co., Ltd.
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Product Description ASTM A268/ASME SA268 Tp410s, Tp409, Tp430, Tp430Ti,17-4pH Martensitic steel pipeASTM A268 is Standard specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service, the grades contain TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439 and TP446, it covers standard specification for a number of grades of nominal-wall-thickness, welded ferritic and martensitic stainless steel tubing for general corrosion-resisting and high-temperature service, ASME SA268 is alternative standard.The tubes shall be made by the seamless or welded process with no filler metal added, tubes shall be reheated to a temperature of 1200.F [650.C] or higher and cooled to meet the requirements of this specification, All tubes shall be free of excessive mill scale, suitable for inspection. A slight amount of oxidation will not be considered as scale.ASTM A268 Stainless Steel Tubing SpecificationStandardASTM A268, ASME SA268Tube TypeBoth Welded And SeamlessGradesASTM A268 TP 410, ASTM A268 TP 430, ASTM A268 TP 439Outside Diameter1/4″ (6.25mm) To 8″ (203mm)Wall Thickness0.02″ (0.5mm) To 0.5″(12mm)ApplicationHeat Exchanger, Heater, Condenser ASTM A268 TP410, TP430, TP439 Chemical CompositionThe steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, aluminum, copper, nitrogen, titanium, and columbium, most of these grades are commonly characterized by being ferromagnetic.Grade:TP410TP430TP439UNSS41000S43000S43035C, Max0.150.120.07Mn,Max1.001.001.00P, Max0.040.040.040S, Max0.030.030.030Si, Max1.001.001.00Ni……0.50maxCr11.5-13.516.0-18.017.00-19.00Mo………Al……0.15Cu………N……0.04Ti……0.20+4(C+N)Min, 1.10maxASTM A268 mainly contains 400 series Ferritic and Martensitic stainless steel grades, without or with slight Nickel element, so they have advantages on price compared to 304 or 316L stainless steel, that is the common used grade.ASTM A268 Stainless Steel Tubing Sizes ToleranceVariations in outside diameter, wall thickness, and length from those specified shall not exceed the amounts prescribed below.Outside Diameter, In.[Mm]OD Tolerance, In.[Mm]Wall Thickness, %Thin Wall TubesUp To1?2, [12.7], Excl±0.005 [0.13]±15 1?2 To 11?2 [12.7 To 38.1], Excl/Td> ±0.005 [0.13]±10<Less Than 0.065 In. [1.6 Mm] Nominal11?2 To 31?2 [38.1 To 88.9], Excl±0.010 [0.25]±10Less Than 0.095 In. [2.4 Mm] Nominal31?2 To 51?2 [88.9 To 139.7], Excl±0.015 [0.38]±10Less Than 0.150 In. [3.8 Mm] Nominal51?2 To 8 [139.7 To 203.2], Incl±0.030 [0.76]±10Less Than 0.150 In. [3.8 Mm] NominalTestsThe steel shall conform to the following tensile properties: tensile strength, yield strength, and elongation.GradeTensile Strength, Min, Ksi [MPa]Yield Strength, Min, Ksi [MPa]ELONGATION. MIN, %TP41055 [380]30 [205]20TP43060 [415]35 [240]20TP43960 [415]30 [205]20The tubes shall have a hardness number that will not exceed the prescribed Brinell and Rockwell hardness values, TP410, TP430 and TP439 max Rockwell hardness 90, Test report required certification conform to Specification A1016/A1016M.Several mechanical tests shall be conducted, namely:Tension test;Flaring test (for seamless tubes);Flange test (for welded tubes);Hardness test;Reverse flattening test;Intergranular corrosion test; andHydrostatic or nondestructive electric test.
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