S21904 Stainless Steels

S21904 - Specification & Application

Austenitic Chromium Manganese Nickel Stainless Steel, Low carbon

Chemical composition(wt.%) of S21904 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.04
Mn 8.00 10.00
Si - 1.00
P - 0.06
S - 0.03
Cr 19.00 21.50
Ni 5.50 7.50
Mo - -
N 0.15 0.40

S21904 - Detail

Austenitic Chromium Manganese Nickel Stainless Steel, Low carbon

Mechanical properties of grade S21904

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)
998 (≥) 721 (≥) 13 44 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical properties of grade S21904

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
221 (≥) 575 (≥) 43 23 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 344
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
588 747 898

Equivalent Products

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