ASTM A 312 Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

UNS Designation N08904

Chemical Requirements: Composition, %, max

C: 0.020

Mn:2.00

P: ≤0.040

S: ≤0.030

Si: 1.00

Cr: 19.0-23.0

Ni:23.0-28.0

Mo: 4.0-5.0

N: 0.10

Cu: 1.00-2.00

Heat Treating Temperature: 1100 °C

Tensile Requirements

Tensile Strength, min.: 490MPa

Yield Strength, min.: 215MPa

Elongation in 2 in. or 50 mm (or 4D), min, %:

Longitudinal 35

Transverse 25