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Description

GJB 390 (1987), LF6 Specialsteel Aerospace industrial LF6 aluminum magnesium alloy plate and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: LF6
Category Class Grade Standard Country Application
Steel GradesSpecialsteel LF6 Aerospace industrial LF6 aluminum magnesium alloy plate

Chemical composition(mass fraction)(wt.%) of the LF6

Al Be Cu Fe Mg Mn Others total Si Ti Total Others Zn
≤Remainder 0.0001 -0.0050 ≤0.1000 ≤0.4000 5.8000 -6.8000 0.5000 -0.8000 ≤0.0500 ≤0.4000 0.0200 -0.1000 ≤0.1000 ≤0.2000

Mechanical Properties of steel grade LF6

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)
966 (≥) 457 (≥) 43 42 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade LF6

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
22 - -     0.13 -  
517 247 - 13.3 213   -  
884 - 23 14.2   433 112

Heat Treatment of steel grade LF6

Heat treated : 1174°C - 1858°C

Technological Curves of steel grade LF6

Relevant standard of LF6

GJB 390 (1987) Aerospace industrial LF6 aluminum magnesium alloy plate GJB-390---(1987).pdf

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