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Japan JIS SHY685 焊接结构用高屈服强度钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SHY685 / SHY 685
Category Grade Standard Region/Area Standard Content
Metals SHY 685 JIS G3128 Japan 焊接结构用高屈服强度钢板

Chemical composition(mass fraction)(wt.%) of the SHY 685

Element Min Max Similar
V - 0.1000 -
Si - 0.5500 -
S - 0.0250 -
P - 0.0300 -
Mo - 0.6000 -
Mn - 1.5000 -
Cu - 0.5000 -
Cr - 1.2000 -
CEV - 0.6000 -
C - 0.1800 -
B - 0.0050 -

Mechanical Properties of steel grade SHY 685

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)
623 (≥) 143 (≥) 12 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade SHY 685

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 - -     0.22 -  
321 379 - 12.3 131   -  
823 - 14 32.2   123 443

Heat Treatment of steel grade SHY 685

Heat treated : 1736°C - 1249°C

Technological Curves of steel grade SHY 685

Cross Reference Table (Equivalent Grade) of SHY 685

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