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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

Rp0.2 (MPa)
Rm (MPa)
KV/Ku (J)
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
175 (≥) 279 (≥) 23 33 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade LF6

Modulus of elasticity
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
Specific thermal capacity
Specific electrical resistivity
(Ω mm²/m)
Poisson’s coefficient, ν
44 - -     0.41 -  
236 515 - 32.3 231   -  
486 - 22 14.2   422 422

Heat Treatment of steel grade LF6

Heat treated : 1184°C - 1273°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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