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SFNCM 690 D

Japan JIS SFNCM690D 一般用途用镍铬钼钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SFNCM690D / SFNCM 690 D
Category Grade Standard Region/Area Standard Content
Metals SFNCM 690 D JIS G3222 Japan 一般用途用镍铬钼钢锻件

Chemical composition(mass fraction)(wt.%) of the SFNCM 690 D

Element Min Max Similar

Mechanical Properties of steel grade SFNCM 690 D

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)
144 (≥) 678 (≥) 34 34 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade SFNCM 690 D

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
41 - -     0.12 -  
134 284 - 42.3 431   -  
131 - 44 21.2   141 113

Heat Treatment of steel grade SFNCM 690 D

Heat treated : 1388°C - 1338°C

Technological Curves of steel grade SFNCM 690 D

Cross Reference Table (Equivalent Grade) of SFNCM 690 D

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