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18 9 Mn Mo

France AFNOR NF 189MnMo 焊材 - 覆盖电极的用于不锈钢和耐热钢的手工电弧焊 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 189MnMo / 18 9 Mn Mo
Category Grade Standard Region/Area Standard Content
Metals 18 9 Mn Mo NF EN 1600 France 焊材 - 覆盖电极的用于不锈钢和耐热钢的手工电弧焊

Chemical composition(mass fraction)(wt.%) of the 18 9 Mn Mo

Element Min Max Similar
Si - 1.2000 -
S - 0.0250 -
P - 0.0350 -
Ni 9.0000 11.0000 -
Mo 0.5000 1.5000 -
Mn 3.0000 5.0000 -
Fe - - -
Cu - 0.7500 -
Cr 18.0000 21.5000 -
C 0.0400 0.1400 -

Mechanical Properties of steel grade 18 9 Mn Mo

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)
771 (≥) 297 (≥) 22 13 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade 18 9 Mn Mo

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
42 - -     0.12 -  
895 432 - 24.3 342   -  
815 - 44 24.2   232 431

Heat Treatment of steel grade 18 9 Mn Mo

Heat treated : 1152°C - 1668°C

Technological Curves of steel grade 18 9 Mn Mo

Cross Reference Table (Equivalent Grade) of 18 9 Mn Mo

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