A53 seamless welded steel pipe

A53 seamless and welded carbon steel pipe a53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless1 1, Steel No. C(max)a Mn P(max) S(max) Si(min) Cu(max)a Ni(max)a Cr(max)a Mo(max)a V(max)a Grade A: 0.25 0.95 0.05 0.045 0.4 0.4 0.4 0.15 0.08 0.08 Grade B: 0.3 1.2 0.05 0.045 0.4 0.4 0.4 0.15 0.08 0.08 B These five elements combined shall not exceed +/-1 %. 2, Diameter & Tolerance: For pipe = NPS 11⁄2 [DN 40], the outside diameter at any point shall not vary more than 1⁄64 in. [0.4 mm]. For pipe =NPS 2 [DN 50], the outside diameter shall not vary more than +/-1%. 3, Tensile Requirements Grade A Minimum Yield: 30,000 PSI (205MPa) Minimum Tensile: 48,000 PSI (330MPa) Grade B Minimum Yield: 35,000 PSI (240MPa) Minimum Tensile: 60,000 PSI (415MPa) 4, Wall Thickness & Tolerance: Wall thickness: Scheduled Wall Tolerance: +/- 12.5% 5, Galvanized 1), Zinc: The zinc used for the coating shall be any grade of zinc conforming to Specification B 6 2), Weight of Coating The weight of zinc coating shall be not less than 1.8 oz/ft2[0.55 kg/m2] as determined from the average results of the two specimens taken for test in the manner prescribed in 19.5 and not less than 1.6 oz/ft2[0.49kg/m2] for either of these specimens. And testing the weight of zinc according to ASTMB90 6, Common Uses: - Low pressure systems - Structural applications - Mechanical components - Bollards - Casing

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