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France AFNOR NF 10.9(C) 紧固件机械性能 - 第1部分:螺栓,螺钉和螺柱 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 10.9(C) / 10.9 (C)
Category Grade Standard Region/Area Standard Content
Metals 10.9 (C) NF EN 20898-1 France 紧固件机械性能 - 第1部分:螺栓,螺钉和螺柱

Chemical composition(mass fraction)(wt.%) of the 10.9 (C)

Element Min Max Similar
S - 0.0350 -
P - 0.0350 -
C 0.2500 0.5500 -

Mechanical Properties of steel grade 10.9 (C)

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)
643 (≥) 462 (≥) 11 44 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade 10.9 (C)

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
14 - -     0.23 -  
273 769 - 11.3 243   -  
324 - 34 44.2   232 211

Heat Treatment of steel grade 10.9 (C)

Heat treated : 1729°C - 1922°C

Technological Curves of steel grade 10.9 (C)

Cross Reference Table (Equivalent Grade) of 10.9 (C)

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