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Global 企业标准 ST-80 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ST-80 / ST-80
Category Grade Standard Region/Area Standard Content
Metals ST-80 -- Global

Chemical composition(mass fraction)(wt.%) of the ST-80

Element Min Max Similar
Ti - - -
O - 0.4000 -
N - 0.0700 -
H - 0.0130 -
Fe - 0.5000 -
C - 0.1500 -

Mechanical Properties of steel grade ST-80

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)
133 (≥) 396 (≥) 34 44 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade ST-80

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
42 - -     0.12 -  
324 746 - 23.3 234   -  
756 - 24 42.2   343 424

Heat Treatment of steel grade ST-80

Heat treated : 1217°C - 1476°C

Technological Curves of steel grade ST-80

Cross Reference Table (Equivalent Grade) of ST-80

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