40X9C2 Stainless Steels

40X9C2 - Specification & Application

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

Chemical composition(wt.%) of 40X9C2 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.35 0.45
Si 2.00 3.00
Mn - 0.80
P - 0.030
S - 0.025
Cr 8.00 10.00
Ni - 0.60
Mo - -
W - -
Ti - 0.20

40X9C2 - Detail

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

Mechanical properties of grade 40X9C2

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)
328 (≥) 936 (≥) 34 34 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical properties of grade 40X9C2

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
363 (≥) 841 (≥) 31 32 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 123
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
787 343 785

Equivalent Grade

Equivalent Products

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