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EU EN C7RG2 螺栓、螺母和铆钉用低碳素非合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C7RG2 / C 7 RG 2
Category Grade Standard Region/Area Standard Content
Metals C 7 RG 2 -- EU 螺栓、螺母和铆钉用低碳素非合金钢

Chemical composition(mass fraction)(wt.%) of the C 7 RG 2

Element Min Max Similar

Mechanical Properties of steel grade C 7 RG 2

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)
574 (≥) 287 (≥) 13 11 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade C 7 RG 2

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
33 - -     0.11 -  
312 989 - 41.3 431   -  
359 - 11 42.2   241 123

Heat Treatment of steel grade C 7 RG 2

Heat treated : 1658°C - 1815°C

Technological Curves of steel grade C 7 RG 2

Cross Reference Table (Equivalent Grade) of C 7 RG 2

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