B490RNQB

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China 宝钢Q/BQB B490RNQB 耐火耐大气腐蚀热连轧钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B490RNQB / B490RNQB

Category	Grade	Standard	Region/Area	Standard Content
Metals	B490RNQB	BZJ 341	China	耐火耐大气腐蚀热连轧钢板及钢带

Chemical composition(mass fraction)(wt.%) of the B490RNQB

Element	Min	Max	Similar
Pcm	-	0.2700	-
Mo	0.3000	0.9000	-
Cr	0.4500	0.7500	-
Ni	0.0500	0.3000	-
Cu	0.3000	0.5000	-
S	-	0.0150	-
P	-	0.0300	-
Mn	-	1.6000	-
Si	0.1500	0.5500	-
C	-	0.1500	-

Mechanical Properties of steel grade B490RNQB

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)
478 (≥)	597 (≥)	31	23	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	141

Physical Properties of steel grade B490RNQB

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	-	-			0.24	-
231	214	-	23.3	242		-
392	-	22	34.2			234	411

Heat Treatment of steel grade B490RNQB

Heat treated : 1364°C - 1173°C

Technological Curves of steel grade B490RNQB

No Curve

Cross Reference Table (Equivalent Grade) of B490RNQB

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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Rfq.: sales@longhaisteel.com

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