AISI 631

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#AISI # # #631

Description

AISI 631 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: AISI 631

Category	Type	Steel Grade
Steel Grades	Carbon Steel	AISI 631
		AISI 1074
		ASTM A682
		AISI 1095
		ASTM A682
		AMS 6455F
		AISI 9254
		AMS 6451A
		AISI 301
		AISI 302
		AISI 316

Chemical composition(mass fraction)(wt.%) of the AISI 631

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.07					16-18	6.5-7.75
Mo	Al	Cu	Nb	Ti	V	Ce
	0.75-1.5
N	Co	Pb	B	Other

Mechanical Properties of steel grade AISI 631

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)
642 (≥)	927 (≥)	31	32	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	233

Physical Properties of steel grade AISI 631

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	-	-			0.24	-
668	151	-	44.3	212		-
186	-	41	21.2			223	431

Heat Treatment of steel grade AISI 631

Heat treated : 1413°C - 1366°C

Technological Curves of steel grade AISI 631

No Curve

Cross Reference Table (Equivalent Grade) of AISI 631

Grade	Standard	Country	Application
AISI 431	AISI	USA	Martensitic special steel
AISI 440A	AISI	China	Martensitic special steel
AISI 440B	AISI	USA	Martensitic special steel
AISI 440F	AISI	USA	Martensitic special steel
AISI 440F Se	AISI	USA	Martensitic special steel
AISI 501	AISI	USA	Martensitic special steel
AISI 501A	AISI	USA	Martensitic special steel
AISI 501B	AISI	USA	Martensitic special steel
AISI 502	AISI	USA	Martensitic special steel
AISI 503	AISI	USA	Martensitic special steel
AISI 504	AISI	USA	Martensitic special steel
AISI S13800		USA	precipitation hardening
AISI S15500	AISI	USA	precipitation hardening
AISI 632	AISI	USA	precipitation hardening
AISI 630	AISI	USA	precipitation hardening
AISI 635	AISI	USA	precipitation hardening
AISI 631	AISI	USA	precipitation hardening
AISI 633	AISI	USA	precipitation hardening
AISI 633	AISI	USA	precipitation hardening
AISI 634	AISI	USA	precipitation hardening

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Rfq.: sales@longhaisteel.com

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