HC420LA

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China 鞍钢Q/ASB HC420LA 汽车用高强度冷连轧钢板和钢带第4部分：高强度低合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: HC420LA / HC420LA

Category	Grade	Standard	Region/Area	Standard Content
Metals	HC420LA	Q/ASB 89.4	China	汽车用高强度冷连轧钢板和钢带第4部分：高强度低合金钢

Chemical composition(mass fraction)(wt.%) of the HC420LA

Element	Min	Max	Similar
Ti+Nb+V+B	-	0.2200	-
Ti	-	0.1500	-
Nb	-	0.0900	-
Al	0.0150	-	-
S	-	0.0250	-
P	-	0.0250	-
Mn	-	1.6000	-
Si	-	0.5000	-
C	-	0.1000	-

Mechanical Properties of steel grade HC420LA

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
912 (≥)	929 (≥)	23	34	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	234

Physical Properties of steel grade HC420LA

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
23	-	-			0.23	-
674	725	-	11.3	121		-
325	-	21	42.2			433	324

Heat Treatment of steel grade HC420LA

Heat treated : 1788°C - 1925°C

Technological Curves of steel grade HC420LA

No Curve

Cross Reference Table (Equivalent Grade) of HC420LA

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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