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EC80 STM extra

Global 企业标准 EC80STMextra STM-Stahl and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: EC80STMextra / EC80 STM extra
Category Grade Standard Region/Area Standard Content
Metals EC80 STM extra -- Global STM-Stahl

Chemical composition(mass fraction)(wt.%) of the EC80 STM extra

Element Min Max Similar
S - 0.0300 -
Mn - - 1.1000
Cr - - 1.0000
C - - 0.1800

Mechanical Properties of steel grade EC80 STM extra

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)
734 (≥) 129 (≥) 32 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade EC80 STM extra

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 - -     0.14 -  
436 478 - 31.3 412   -  
339 - 34 11.2   114 113

Heat Treatment of steel grade EC80 STM extra

Heat treated : 1255°C - 1555°C

Technological Curves of steel grade EC80 STM extra

Cross Reference Table (Equivalent Grade) of EC80 STM extra

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