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Japan JIS SWCH20K 冷镦和冷锻碳钢丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SWCH20K / SWCH 20K
Category Grade Standard Region/Area Standard Content
Metals SWCH 20K JIS G3539 Japan 冷镦和冷锻碳钢丝

Chemical composition(mass fraction)(wt.%) of the SWCH 20K

Element Min Max Similar
Si 0.1000 0.3500 -
S - 0.0350 -
P - 0.0300 -
Mn 0.3000 0.6000 -
C 0.1800 0.2300 -

Mechanical Properties of steel grade SWCH 20K

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)
264 (≥) 175 (≥) 32 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade SWCH 20K

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 - -     0.33 -  
147 694 - 33.3 442   -  
498 - 32 14.2   234 323

Heat Treatment of steel grade SWCH 20K

Heat treated : 1547°C - 1921°C

Technological Curves of steel grade SWCH 20K

Cross Reference Table (Equivalent Grade) of SWCH 20K

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