ASTM Grade 31

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ASTM Grade 31 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: ASTM Grade 31

Category	Type	Steel Grade
Steel Grades	Carbon Steel	ASTM Grade 31
		ICI 4620
		ASTM 12Q
		ICI 6150
		ASTM 13Q
		ICI 8620
		ASTM 14Q
		ICI 8630
		ASTM 15A
		ICI 52100
		ASTM Grade 21

Chemical composition(mass fraction)(wt.%) of the ASTM Grade 31

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.45-0.55	1.0	1.0	0.04	0.04	24.5-26.5	9.5-11.5
Mo	Al	Cu	Nb	Fe	W	V
				≤2.0	7.0-8.0
N	Co	Pb	B	Other
	...		0.005-0.015

Mechanical Properties of steel grade ASTM Grade 31

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)
423 (≥)	588 (≥)	12	32	31	Solution and Aging, Annealing, Ausaging, Q+T,etc	444

Physical Properties of steel grade ASTM Grade 31

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
14	-	-			0.13	-
197	719	-	13.3	131		-
552	-	11	43.2			144	213

Heat Treatment of steel grade ASTM Grade 31

Heat treated : 1715°C - 1912°C

Technological Curves of steel grade ASTM Grade 31

No Curve

Cross Reference Table (Equivalent Grade) of ASTM Grade 31

Grade	Standard	Country	Application
ASTM 1030	ASTM	USA	General use carbon steel bar
ASTM 1005	ASTM	USA	General use carbon steel bar
ASTM 1006	ASTM	USA	General use carbon steel bar
ASTM 1008	ASTM	USA	General use carbon steel bar
ASTM 1010	ASTM	USA	General use carbon steel bar
ASTM 1013	ASTM	USA	General use carbon steel bar
ASTM 1015	ASTM	USA	General use carbon steel bar
ASTM 1016	ASTM	USA	General use carbon steel bar
ASTM 1017	ASTM	USA	General use carbon steel bar
ASTM 1018	ASTM	USA	General use carbon steel bar
ASTM 1019	ASTM	USA	General use carbon steel bar
ASTM 1020	ASTM	USA	General use carbon steel bar
ASTM 1021	ASTM	USA	General use carbon steel bar
ASTM W1-A	ASTM	USA	Carbon tool steel
ASTM A182 F55	ASTM	USA	Super Duplex
ASTM 431	ASTM	USA	Martensitic special steel
ASTM 440A	ASTM	USA	Martensitic special steel
ASTM 440B	ASTM	USA	Martensitic special steel
ASTM 440C	ASTM	USA	Martensitic special steel
ASTM 501	ASTM	USA	Martensitic special steel

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