ASTM 321 stainless steel

321 stainless steel is Ni - Cr - Ti austenitic stainless steel and its performance is very similar with 304. But due to join the metal titanium, 321 has the better grain boundary corrosion resistance and high temperature strength.

ASTM 321 equivalent material GB: 0Cr18Ni10Ti

American: 321、S32100、TP321

Japanese: SUS321

English: 304S12、321920

Germany: X10CrNiTi189

ASTM 321 chemical composition %

C(max):0.08, Mn(max):2.00, P(max):0.045, S(max):0.030, Si(max):0.75, Cr:17.0-19.0, Ni:9.0-12.0, N(max):0.1, Ti:5*(C+N)-0.70

ASTM 321 mechanical properties

Tensile strength(min):515Mpa, Yield strength(min):205Mpa, Elongation in 2 in. or 50 mm,min, %: 40, Hardness: HB(max): 217, HRB(max):95

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