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EU EN SM 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: SM / SM
Category Grade Standard Region/Area Standard Content
Metals SM 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 SM

Element Min Max Similar
Cu - 0.2000 -
P - 0.0350 -
S - 0.0350 -
Mn 0.5000 1.2000 -
Si 0.1000 0.3000 -
C 0.3500 1.0000 -
Si 0.1000 0.3000 -
S - 0.0350 -
P - 0.0350 -
Mn 0.4000 1.2000 -
Cu - 0.2000 -
C 0.3500 1.0000 -

Mechanical Properties of steel grade SM

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)
543 (≥) 517 (≥) 41 13 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade SM

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
34 - -     0.22 -  
974 315 - 44.3 412   -  
568 - 22 41.2   344 444

Heat Treatment of steel grade SM

Heat treated : 1252°C - 1274°C

Technological Curves of steel grade SM

Cross Reference Table (Equivalent Grade) of SM

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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