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Global 企业标准 249 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 249 / 249
Category Grade Standard Region/Area Standard Content
Metals 249 -- Global

Chemical composition(mass fraction)(wt.%) of the 249

Element Min Max Similar
Zn 2.5000 3.5000 -
Total Others - 0.1000 -
Total Each - 0.0300 -
Ti 0.0200 0.3500 -
Si - 0.0500 -
Mn 0.2500 0.5000 -
Mg 0.2500 0.5000 -
Fe - 0.1000 -
Cu 3.8000 4.6000 -
Al - - -

Mechanical Properties of steel grade 249

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)
251 (≥) 655 (≥) 43 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade 249

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
43 - -     0.22 -  
727 411 - 32.3 314   -  
246 - 14 32.2   232 421

Heat Treatment of steel grade 249

Heat treated : 1189°C - 1956°C

Technological Curves of steel grade 249

Cross Reference Table (Equivalent Grade) of 249

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