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321 Stainless steel

Global 企业标准 321Stainlesssteel Rolled Alloys and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals 321 Stainless steel -- Global Rolled Alloys

Chemical composition(mass fraction)(wt.%) of the 321 Stainless steel

Element Min Max Similar
C - 0.0800 -
Mn - 2.0000 -
P - 0.0450 -
S - 0.0300 -
Si 0.2500 1.0000 -
Ni 9.0000 12.0000 -
Cr 17.0000 19.0000 -
Mo - 0.7500 -
Ti - 0.7000 -
N - 0.1000 -
Fe - - -

Mechanical Properties of steel grade 321 Stainless steel

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
956 (≥) 166 (≥) 23 31 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade 321 Stainless steel

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
33 - -     0.34 -  
557 221 - 21.3 143   -  
442 - 32 44.2   413 432

Heat Treatment of steel grade 321 Stainless steel

Heat treated : 1763°C - 1259°C

Technological Curves of steel grade 321 Stainless steel

Cross Reference Table (Equivalent Grade) of 321 Stainless steel

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