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Global 企业标准 Hi21 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Hi21 / Hi 21
Category Grade Standard Region/Area Standard Content
Metals Hi 21 -- Global

Chemical composition(mass fraction)(wt.%) of the Hi 21

Element Min Max Similar

Mechanical Properties of steel grade Hi 21

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)
426 (≥) 953 (≥) 43 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade Hi 21

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 - -     0.42 -  
191 359 - 14.3 444   -  
944 - 31 32.2   434 422

Heat Treatment of steel grade Hi 21

Heat treated : 1837°C - 1917°C

Technological Curves of steel grade Hi 21

Cross Reference Table (Equivalent Grade) of Hi 21

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