S420M

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China 鞍钢Q/ASB S420M 结构用热轧钢板第4部分：焊接结构用热机械轧制晶粒结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S420M / S420M

Category	Grade	Standard	Region/Area	Standard Content
Metals	S420M	Q/ASB 247.4	China	结构用热轧钢板第4部分：焊接结构用热机械轧制晶粒结构钢

Chemical composition(mass fraction)(wt.%) of the S420M

Element	Min	Max	Similar
CEV	-	0.4300	-
CEV	-	0.4500	-
CEV	-	0.4600	-
CEV	-	0.4700	-
Al	0.0150	-	-
N	-	0.0250	-
Cu	-	0.5500	-
Mo	-	0.2000	-
Ni	-	0.8000	-
Cr	-	0.3000	-
Ti	-	0.0500	-
V	-	0.1200	-
Nb	-	0.0500	-
S	-	0.0250	-
P	-	0.0300	-
Mn	-	1.7000	-
Si	-	0.5000	-
C	-	0.1600	-

Mechanical Properties of steel grade S420M

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)
137 (≥)	662 (≥)	12	31	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	221

Physical Properties of steel grade S420M

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
22	-	-			0.42	-
885	878	-	24.3	212		-
528	-	44	23.2			431	214

Heat Treatment of steel grade S420M

Heat treated : 1822°C - 1344°C

Technological Curves of steel grade S420M

No Curve

Cross Reference Table (Equivalent Grade) of S420M

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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