ASTM A 312 Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes Grade: TP304H UNS Designation: S30409 Chemical Requirements(%) C: 0.04-0.10 Mn: ≤2.00 P: ≤0.045 S: ≤0.030 Si: ≤1.00 Cr: 18.0-20.0 Ni: 8.0-11.0 Heat Treating Temperature Solution, ≥1040 °C Tensile Requirements Tensile Strength, ≥515Mpa Yield Strength, ≥205MPa Elongation in 2 in. or 50 mm (or 4D)…
ASTM A 312 Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes Grade: TP321H UNS Designation: S32109 Chemical Requirements(%) C: 0.04-0.10 Mn: ≤2.00 P: ≤0.045 S: ≤0.030 Si: ≤1.00 Cr: 17.0-19.0 Ni: 9.0-12.0 Ti: 4×(C+N)-0.70 N: ≤0.10 Heat Treating Temperature Cold finished, ≥1100 °C Hot finished, ≥1050 °C Tensile Requirements For welded pipe, Tensile Strength,…
ASTM A312 – Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service. The pipe shall be manufactured by one of the following processes: 1) Seamless (SML) pipe shall be made by a…