A618 Gr.Ⅰ b

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#A618 #Gr.Ⅰ #b

Description

A618 Gr.Ⅰ b Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: A618 Gr.Ⅰ b

Category	Type	Steel Grade
Steel Grades	Carbon Steel	A618 Gr.Ⅰ b
		A588 Gr.K
		A606 Type2
		A606 Type4
		A607 Gr.45
		A607 Gr.50
		A607 Gr.55
		A607 Gr.60
		A607 Gr.65
		A607 Gr.70
		A618 Gr.Ⅰ a

Chemical composition(mass fraction)(wt.%) of the A618 Gr.Ⅰ b

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.2	0.5	1.35	0.025	0.025	0.5
Mo	Al	Cu	Nb	Ti	V	Ce
		≥0.2
N	Co	Pb	B	Other

Mechanical Properties of steel grade A618 Gr.Ⅰ b

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)
291 (≥)	777 (≥)	24	43	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	111

Physical Properties of steel grade A618 Gr.Ⅰ b

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
13	-	-			0.31	-
879	415	-	33.3	222		-
432	-	11	33.2			423	313

Heat Treatment of steel grade A618 Gr.Ⅰ b

Heat treated : 1253°C - 1642°C

Technological Curves of steel grade A618 Gr.Ⅰ b

No Curve

Cross Reference Table (Equivalent Grade) of A618 Gr.Ⅰ b

Grade	Country	Application
Q215 B	China	Engineering and welding
Q255 B	China	Engineering and welding
BW1A		Carbon tool steel
BW1B		Carbide for cutting tools
BW1C
BW1C
BW2(1)		Carbide for cutting tools
BW2(1)		Carbide for cutting tools
BW2		Carbide for cutting tools
BW2		Carbide for cutting tools
BS1		Carbide for cutting tools
BS1		Carbide for cutting tools
BS2		Carbide for cutting tools
BS2		Carbide for cutting tools
BS2		Carbide for cutting tools
BS2		Carbide for cutting tools
BS5		Carbide for cutting tools
BS5		Carbide for cutting tools
BO1		Carbide for cutting tools
BO1		Carbide for cutting tools

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