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China GB LN9 铸造铝镍钴永磁(硬磁)合金技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: LN9 / LN9
Category Grade Standard Region/Area Standard Content
Metals LN9 GB 4753 China 铸造铝镍钴永磁(硬磁)合金技术条件

Chemical composition(mass fraction)(wt.%) of the LN9

Element Min Max Similar

Mechanical Properties of steel grade LN9

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)
131 (≥) 478 (≥) 14 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade LN9

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
24 - -     0.23 -  
146 716 - 14.3 432   -  
233 - 24 34.2   143 321

Heat Treatment of steel grade LN9

Heat treated : 1423°C - 1798°C

Technological Curves of steel grade LN9

Cross Reference Table (Equivalent Grade) of LN9

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