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China GB LD2 铝及铝合金挤压棒材 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: LD2 / LD2
Category Grade Standard Region/Area Standard Content
Metals LD2 GB/T 3191 China 铝及铝合金挤压棒材

Chemical composition(mass fraction)(wt.%) of the LD2

Element Min Max Similar
Zr 0.1000 0.2500 -
Zn 4.4000 5.0000 -
Total Others - 0.1000 -
Total Each - 0.0500 -
Ti 0.0200 0.0600 -
Si - 0.2500 -
Mn 0.1500 0.4000 -
Mg 1.1000 1.7000 -
Fe - 0.2500 -
Cu - 0.2000 -
Cr 0.0500 0.1500 -
Al - - -

Mechanical Properties of steel grade LD2

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)
461 (≥) 669 (≥) 22 44 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade LD2

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
31 - -     0.24 -  
482 175 - 34.3 234   -  
222 - 13 13.2   311 243

Heat Treatment of steel grade LD2

Heat treated : 1851°C - 1666°C

Technological Curves of steel grade LD2

Cross Reference Table (Equivalent Grade) of LD2

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