03X18H12 Stainless Steels

03X18H12 - Specification & Application

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

Chemical composition(wt.%) of 03X18H12 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 0.40
Mn - 0.40
P - 0.030
S - 0.020
Cr 17.00 19.00
Ni 11.50 13.00
Mo - 0.30
W - 0.20
Ti - 0.005

03X18H12 - Detail

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

Mechanical properties of grade 03X18H12

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)
927 (≥) 949 (≥) 22 31 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical properties of grade 03X18H12

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
643 (≥) 434 (≥) 31 41 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 434
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
871 624 831

Equivalent Products

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