40X18H2M Stainless Steels

40X18H2M - Specification & Application

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

Chemical composition(wt.%) of 40X18H2M grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.35 0.45
Si - 0.50
Mn 0.60 1.00
P 0.08 0.15
S 0.15 0.25
Cr 16.50 18.50
Ni 1.70 2.20
Mo 0.25 0.40

40X18H2M - Detail

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

Mechanical properties of grade 40X18H2M

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)
242 (≥) 873 (≥) 13 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical properties of grade 40X18H2M

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
591 (≥) 554 (≥) 32 14 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 423
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
846 515 665

Equivalent Grade

Equivalent Products

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