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Japan JIS SWO-A 机械弹簧用油回火钢丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SWO-A / SWO-A
Category Grade Standard Region/Area Standard Content
Metals SWO-A JIS G3560 Japan 机械弹簧用油回火钢丝

Chemical composition(mass fraction)(wt.%) of the SWO-A

Element Min Max Similar
Si 0.1000 0.3500 -
S - 0.0400 -
P - 0.0400 -
Mn 0.3000 1.2000 -
C 0.5300 0.8800 -

Mechanical Properties of steel grade SWO-A

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)
346 (≥) 139 (≥) 32 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade SWO-A

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
31 - -     0.11 -  
913 463 - 42.3 332   -  
727 - 42 34.2   231 322

Heat Treatment of steel grade SWO-A

Heat treated : 1448°C - 1531°C

Technological Curves of steel grade SWO-A

Cross Reference Table (Equivalent Grade) of SWO-A

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