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Global 企业标准 745 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 745 / 745
Category Grade Standard Region/Area Standard Content
Metals 745 -- Global

Chemical composition(mass fraction)(wt.%) of the 745

Element Min Max Similar
Total Others - 0.1500 -
Total Each - 0.0500 -
Ti 0.0400 0.1000 -
Si 0.1000 0.2500 -
Ni 0.9000 1.2000 -
Mg 1.3000 1.8000 -
Fe 0.9000 1.3000 -
Cu 1.9000 2.7000 -
Al - - -

Mechanical Properties of steel grade 745

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)
121 (≥) 253 (≥) 31 34 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade 745

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
41 - -     0.43 -  
484 431 - 41.3 124   -  
561 - 41 34.2   242 131

Heat Treatment of steel grade 745

Heat treated : 1796°C - 1152°C

Technological Curves of steel grade 745

Cross Reference Table (Equivalent Grade) of 745

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