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China GB HLK4-45 铝土矿石 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: HLK4-45 / HLK4-45
Category Grade Standard Region/Area Standard Content
Metals HLK4-45 GB/T 24483 China 铝土矿石

Chemical composition(mass fraction)(wt.%) of the HLK4-45

Element Min Max Similar
水分 - 8.0000 -
TiO2 - 2.0000 -
Fe2O3 - 18.0000 -
Al2O3 45.0000 - -
w(Fe2O3)/w(SiO2) 4.0000 - -

Mechanical Properties of steel grade HLK4-45

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)
874 (≥) 722 (≥) 34 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade HLK4-45

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
14 - -     0.33 -  
875 389 - 41.3 441   -  
567 - 23 12.2   143 333

Heat Treatment of steel grade HLK4-45

Heat treated : 1235°C - 1766°C

Technological Curves of steel grade HLK4-45

Cross Reference Table (Equivalent Grade) of HLK4-45

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