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China YB Q690CF-D 低焊接裂纹敏感性高强度钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q690CF-D / Q690CF-D
Category Grade Standard Region/Area Standard Content
Metals Q690CF-D YB/T 4137 China 低焊接裂纹敏感性高强度钢板

Chemical composition(mass fraction)(wt.%) of the Q690CF-D

Element Min Max Similar
B - 0.0050 -
Ti - 0.0500 -
Nb - 0.1200 -
V - 0.1000 -
Mo - 0.7000 -
Ni - 1.8000 -
Cr - 0.8000 -
S - 0.0100 -
P - 0.0180 -
Mn - 2.0000 -
Si - 0.5000 -
C - 0.0900 -

Mechanical Properties of steel grade Q690CF-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)
714 (≥) 577 (≥) 44 31 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade Q690CF-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
13 - -     0.44 -  
629 566 - 11.3 342   -  
748 - 21 41.2   431 222

Heat Treatment of steel grade Q690CF-D

Heat treated : 1886°C - 1846°C

Technological Curves of steel grade Q690CF-D

Cross Reference Table (Equivalent Grade) of Q690CF-D

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