08X18H12Б Stainless Steels

08X18H12Б - Specification & Application

Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Chemical composition(wt.%) of 08X18H12Б grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 0.80
Mn - 2.00
P - 0.035
S - 0.020
Cr 17.00 19.00
Ni 11.00 13.00
Mo - 0.30
W - 0.20
Ti 5×C 0.70
Nb 10×C 1.10

08X18H12Б - Detail

Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Mechanical properties of grade 08X18H12Б

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)
125 (≥) 234 (≥) 34 41 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical properties of grade 08X18H12Б

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
633 (≥) 888 (≥) 44 12 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 122
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
313 598 913

Equivalent Grade

Equivalent Products

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