AISI 8720

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#AISI # # #8720

Description

AISI 8720 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: AISI 8720

Category	Type	Steel Grade
Steel Grades	Carbon Steel	AISI 8720
		AISI TS8653
		SAE 8655
		UNS G86550
		AISI TS8655
		SAE 8660
		UNS G86600
		AISI 8660
		SAE 8715
		SAE 8717
		SAE 8719

Chemical composition(mass fraction)(wt.%) of the AISI 8720

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.18-0.23	0.15-0.35	0.7-0.9	0.035	0.04	0.4-0.6	0.4-0.7
Mo	Al	Cu	Nb	Ti	V	Ce
0.2-0.3
N	Co	Pb	B	Other

Mechanical Properties of steel grade AISI 8720

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)
975 (≥)	876 (≥)	44	23	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	244

Physical Properties of steel grade AISI 8720

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
41	-	-			0.13	-
194	326	-	22.3	441		-
631	-	13	43.2			431	421

Heat Treatment of steel grade AISI 8720

Heat treated : 1592°C - 1296°C

Technological Curves of steel grade AISI 8720

No Curve

Cross Reference Table (Equivalent Grade) of AISI 8720

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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