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Description

China GB GB/T 1220 (1992) , GB/T 3086 (2008) , GB/T 4356 (2002), 9Cr18Mo Specialsteel Stainless steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 9Cr18Mo
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 9Cr18Mo Martensite GB China Stainless steel bars

Chemical composition(mass fraction)(wt.%) of the 9Cr18Mo

C Si Mn P S Ni Cr Mo
0.95 -1.10 ≤0.80 ≤0.80 ≤0.035 ≤0.030 ≤0.60 16.00 -18.00 0.40 -0.70

Mechanical Properties of steel grade 9Cr18Mo

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
657 (≥) 261 (≥) 41 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade 9Cr18Mo

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
34 - -     0.44 -  
178 241 - 13.3 412   -  
713 - 12 14.2   222 442

Heat Treatment of steel grade 9Cr18Mo

Heat treated : 1775°C - 1743°C

Technological Curves of steel grade 9Cr18Mo

Cross Reference Table (Equivalent Grade) of 9Cr18Mo

Grade Standard Country Application
9Cr18Mo
9Cr18MoV
9Cr18MoV
9Cr18MoV
9Cr18Mo
9Cr18Mo

Relevant standard of 9Cr18Mo

GB/T 1220 (1992) Stainless steel bars GB-T-1220--(1992)-.pdf
GB/T 3086 (2008) Specification for high carbon chromium stainless bearing steels GB-T-3086--(2008)--.pdf
GB/T 4356 (2002) Stainless steel wire rods GB-T-4356--(2002).pdf

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