A871 TypeⅡ

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#A871 #TypeⅡ

Description

A871 TypeⅡ Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: A871 TypeⅡ

Category	Type	Steel Grade
Steel Grades	Carbon Steel	A871 TypeⅡ
		A841 Gr.E
		A841 Class4
		A841 Class5
		A841 Gr.F
		A841 Class6
		A841 Class7
		A841 Class8
		A871 TypeⅠ
		A871 Gr.60
		A871 Gr.65

Chemical composition(mass fraction)(wt.%) of the A871 TypeⅡ

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.2	0.15-0.5	0.75-1.35	0.04	0.05	0.4-0.7	≤0.5
Mo	Al	Cu	Nb	Ti	V	Ce
		0.2-0.4			0.01-0.1
N	Co	Pb	B	Other

Mechanical Properties of steel grade A871 TypeⅡ

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)
395 (≥)	114 (≥)	21	34	13	Solution and Aging, Annealing, Ausaging, Q+T,etc	213

Physical Properties of steel grade A871 TypeⅡ

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
33	-	-			0.33	-
358	282	-	31.3	111		-
675	-	21	23.2			441	123

Heat Treatment of steel grade A871 TypeⅡ

Heat treated : 1266°C - 1943°C

Technological Curves of steel grade A871 TypeⅡ

No Curve

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