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EU EN SL 机械弹簧钢丝 - 第1部分:专利的冷拉伸非合金弹簧钢丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SL / SL
Category Grade Standard Region/Area Standard Content
Metals SL EN 10270-1 EU 机械弹簧钢丝 - 第1部分:专利的冷拉伸非合金弹簧钢丝

Chemical composition(mass fraction)(wt.%) of the SL

Element Min Max Similar

Mechanical Properties of steel grade SL

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)
716 (≥) 685 (≥) 43 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade SL

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
21 - -     0.41 -  
421 621 - 21.3 433   -  
667 - 21 22.2   242 111

Heat Treatment of steel grade SL

Heat treated : 1974°C - 1625°C

Technological Curves of steel grade SL

Cross Reference Table (Equivalent Grade) of SL

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