A871 TypeⅣ

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#A871 # #TypeⅣ

Description

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

Datasheet for: Steel Grades:Carbon Steel: A871 TypeⅣ

Category	Type	Steel Grade
Steel Grades	Carbon Steel	A871 TypeⅣ
		A841 Class8
		A871 TypeⅠ
		A871 Gr.60
		A871 Gr.65
		A871 TypeⅡ
		A871 Gr.60
		A871 Gr.65
		A871 TypeⅢ
		A871 Gr.60
		A871 Gr.65

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

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17	0.25-0.5	0.5-1.2	0.04	0.05	0.4-0.7	0.4
Mo	Al	Cu	Nb	Ti	V	Ce
0.1		0.3-0.5	0.005-0.05
N	Co	Pb	B	Other

Mechanical Properties of steel grade A871 TypeⅣ

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)
919 (≥)	381 (≥)	43	32	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	122

Physical Properties of steel grade A871 TypeⅣ

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
32	-	-			0.14	-
963	386	-	12.3	343		-
223	-	33	42.2			331	333

Heat Treatment of steel grade A871 TypeⅣ

Heat treated : 1773°C - 1332°C

Technological Curves of steel grade A871 TypeⅣ

No Curve

Cross Reference Table (Equivalent Grade) of A871 TypeⅣ

Grade	Standard	Country	Application
Q195		China	Engineering and welding
Q215		China	Engineering and welding
Q215 B		China	Engineering and welding
Q235		China	Engineering and welding
Q235 B		China	Engineering and welding
Q235 C		China	Engineering and welding
Q235 D		China	Engineering and welding
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
Q275		China	Engineering and welding
Q235q C		China	Bridge structure with steel
Q235q D		China	Bridge structure with steel
Q345q E		China	Bridge structure with steel
Q345q C		China	Bridge structure with steel
ASTM 1030	ASTM	USA	General use carbon steel bar
UNS G10300	UNS	USA	General use carbon steel bar
ASTM 1005	ASTM	USA	General use carbon steel bar
UNS G10050	UNS	USA	General use carbon steel bar
ASTM 1006	ASTM	USA	General use carbon steel bar
UNS G10060	UNS	USA	General use carbon steel bar

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