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SFNCM 690 R

Japan JIS SFNCM690R 一般用途用镍铬钼钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SFNCM690R / SFNCM 690 R
Category Grade Standard Region/Area Standard Content
Metals SFNCM 690 R JIS G3222 Japan 一般用途用镍铬钼钢锻件

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

Element Min Max Similar

Mechanical Properties of steel grade SFNCM 690 R

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)
762 (≥) 444 (≥) 12 41 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade SFNCM 690 R

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
13 - -     0.13 -  
233 154 - 14.3 223   -  
166 - 34 14.2   234 433

Heat Treatment of steel grade SFNCM 690 R

Heat treated : 1155°C - 1547°C

Technological Curves of steel grade SFNCM 690 R

Cross Reference Table (Equivalent Grade) of SFNCM 690 R

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