B409M

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China 宝钢Q/BQB B409M 汽车排气系统用冷轧铁素体不锈钢钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B409M / B409M

Category	Grade	Standard	Region/Area	Standard Content
Metals	B409M	Q/BQB 4403	China	汽车排气系统用冷轧铁素体不锈钢钢板及钢带

Chemical composition(mass fraction)(wt.%) of the B409M

Element	Min	Max	Similar
Ni	-	0.6000	-
N	-	0.0200	-
Ti	-	0.4000	-
Nb	-	0.4000	-
Cr	11.0000	12.0000	-
S	-	0.0200	-
P	-	0.0400	-
Mn	-	1.0000	-
Si	-	1.0000	-
C	-	0.0200	-

Mechanical Properties of steel grade B409M

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)
589 (≥)	948 (≥)	12	12	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	424

Physical Properties of steel grade B409M

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	-	-			0.42	-
154	374	-	13.3	421		-
596	-	11	14.2			322	232

Heat Treatment of steel grade B409M

Heat treated : 1571°C - 1489°C

Technological Curves of steel grade B409M

No Curve

Cross Reference Table (Equivalent Grade) of B409M

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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