B3

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Description

B3 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: B3

Category	Type	Steel Grade
Steel Grades	Carbon Steel	B3
		AMS 5540
		Inconel 718
		AMS 5596
		AMS 5597
		Inconel X-750
		AMS 5542
		B1
		100Cr6
		B2
		100CrMnSi4-4

Chemical composition(mass fraction)(wt.%) of the B3

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.93-1.05	0.45-0.75	1.0-1.2	0.025	0.015	1.4-1.65
Mo	Al	Cu	Nb	Ti	V	Ce
≤ 0.1	≤0.05	≤0.3		+
N	O2	Pb	B	Other
	≤0.015

Mechanical Properties of steel grade B3

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)
491 (≥)	661 (≥)	43	14	31	Solution and Aging, Annealing, Ausaging, Q+T,etc	242

Physical Properties of steel grade B3

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	-	-			0.12	-
775	445	-	42.3	213		-
396	-	12	22.2			113	312

Heat Treatment of steel grade B3

Heat treated : 1651°C - 1419°C

Technological Curves of steel grade B3

No Curve

Cross Reference Table (Equivalent Grade) of B3

Grade	Standard	Country	Application
ASTM B3N,B3Q	AISI	USA
11SMnPb30			Spain structural alloy steel
11SMnPb37			Spain structural alloy steel
86B30H			Australia Structural steel
EN Fe37B3FU	EN		Euronorm Structural steel
EN Fc37B3FN	EN		Euronorm Structural steel
EN FM2B3FU	EN		Euronorm Structural steel
EN Fe42B3FN	EN		Euronorm Structural steel
EN 11SMnPb30	EN		Euronorm Structural steel
EN 11SMnPb37	EN		Euronorm Structural steel
B3N,B3Q	ASTM	USA	Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service
B3N,B3Q	ASTM	USA	Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service

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B3