1.4108 Stainless Steels to SEW 400

1.4108 - Specification & Application

  • SEW 400 - Stainless steels for rolled and forged products

Stainless steels for rolled and forged products

Chemical composition(wt.%) of 1.4108 grade: to SEW 400

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.25 0.35
Si - 1.00
Mn - 1.00
P - 0.030
S - 0.020
Cr 14.00 16.00
Mo 0.85 1.10
Ni - 0.30
N 0.30 0.45

1.4108 - Detail

Stainless steels for rolled and forged products

Mechanical properties of grade 1.4108 SEW 400

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)
386 (≥) 217 (≥) 22 22 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical properties of grade 1.4108 SEW 400

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
239 (≥) 658 (≥) 21 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 311
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
869 388 867
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