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France AFNOR NF S690MC Iron and steel products. High yield strength weldable microalloy steel hot rolled flat products for cold forming. Grades and types and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S690MC / S 690 MC
Category Grade Standard Region/Area Standard Content
Metals S 690 MC NF A36-231 France Iron and steel products. High yield strength weldable microalloy steel hot rolled flat products for cold forming. Grades and types

Chemical composition(mass fraction)(wt.%) of the S 690 MC

Element Min Max Similar

Mechanical Properties of steel grade S 690 MC

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)
322 (≥) 566 (≥) 42 12 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade S 690 MC

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
12 - -     0.32 -  
747 979 - 24.3 434   -  
357 - 31 33.2   411 134

Heat Treatment of steel grade S 690 MC

Heat treated : 1895°C - 1727°C

Technological Curves of steel grade S 690 MC

Cross Reference Table (Equivalent Grade) of S 690 MC

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