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LQ540

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China 鞍钢Q/ASB LQ540 汽车结构用热连轧钢板个钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: LQ540 / LQ540
Category Grade Standard Region/Area Standard Content
Metals LQ540 Q/ASB 275 China 汽车结构用热连轧钢板个钢带

Chemical composition(mass fraction)(wt.%) of the LQ540

Element Min Max Similar
N - 0.0080 -
Cu - 0.2000 -
Ni - 0.1500 -
Cr - 0.1500 -
Ti - 0.0300 -
Nb - 0.0500 -
S - 0.0100 -
P - 0.0200 -
Mn - 1.6000 -
Si - 0.4000 -
C - 0.1200 -

Mechanical Properties of steel grade LQ540

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)
252 (≥) 543 (≥) 43 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade LQ540

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
34 - -     0.14 -  
375 524 - 22.3 414   -  
519 - 32 22.2   221 323

Heat Treatment of steel grade LQ540

Heat treated : 1547°C - 1259°C

Technological Curves of steel grade LQ540

Cross Reference Table (Equivalent Grade) of LQ540

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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Jiangyou Longhai Special Steel Co.,Ltd.

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