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
Si - 1.00
Mn 8.00 10.0
P - 0.06
S - 0.03
Cr 19.0 21.5
Ni 5.50 7.50
N 0.15 0.40

S21904 - Detail

S21904

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)
571 (≥) 715 (≥) 33 21 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

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
533 (≥) 317 (≥) 33 12 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 224
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
596 829 476

Equivalent Products

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