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China GB 8021 变形铝及铝合金化学成分 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 8021 / 8021
Category Grade Standard Region/Area Standard Content
Metals 8021 GB/T 3190 China 变形铝及铝合金化学成分

Chemical composition(mass fraction)(wt.%) of the 8021

Element Min Max Similar
Si - 0.1500 -
Fe 1.2000 1.7000 -
Cu - 0.0500 -
Others Total - 0.0500 -
Total Others - 0.1500 -
Al - - -
Al - - -
Total Others - 0.1500 -
Others Total - 0.0500 -
Cu - 0.0500 -
Fe 1.2000 1.7000 -
Si - 0.1500 -
Total Others - 0.1500 -
Others Total - 0.0500 -
Si - 0.1500 -
Fe 1.2000 1.7000 -
Cu - 0.0500 -
Al - - -

Mechanical Properties of steel grade 8021

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)
128 (≥) 861 (≥) 31 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade 8021

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
21 - -     0.43 -  
142 515 - 21.3 144   -  
692 - 41 34.2   442 423

Heat Treatment of steel grade 8021

Heat treated : 1587°C - 1482°C

Technological Curves of steel grade 8021

Cross Reference Table (Equivalent Grade) of 8021

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