S21400 Stainless Steels

S21400 - Specification & Application

Austenitic Chromium Manganese Stainless Steel

Chemical composition(wt.%) of S21400 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.12
Mn 14.50 16.00
Si 0.30 1.00
P - 0.045
S - 0.03
Cr 17.00 18.50
Ni - 0.75
Mo - -
N - 0.35

S21400 - Detail

Austenitic Chromium Manganese Stainless Steel

Mechanical properties of grade S21400

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
229 (≥) 142 (≥) 31 11 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical properties of grade S21400

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
671 (≥) 657 (≥) 12 22 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 414
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
773 481 165

Equivalent Products

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