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England B.S. LM9 Specification for aluminium and aluminium alloy ingots and castings for general engineering purposes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: LM9 / LM 9
Category Grade Standard Region/Area Standard Content
Metals LM 9 BS 1490 England Specification for aluminium and aluminium alloy ingots and castings for general engineering purposes

Chemical composition(mass fraction)(wt.%) of the LM 9

Element Min Max Similar
Zn - 0.1000 -
Ti - 0.2000 -
Sn - 0.0500 -
Si - 0.2500 -
Pb - 0.0500 -
Ni - 0.1000 -
Mn - 0.1000 -
Mg 9.5000 11.0000 -
Fe - 0.3500 -
Cu - 0.1000 -
Al - - -

Mechanical Properties of steel grade LM 9

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)
741 (≥) 956 (≥) 34 22 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade LM 9

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
32 - -     0.33 -  
553 213 - 14.3 113   -  
766 - 12 22.2   421 434

Heat Treatment of steel grade LM 9

Heat treated : 1954°C - 1884°C

Technological Curves of steel grade LM 9

Cross Reference Table (Equivalent Grade) of LM 9

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