AISI 4320

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#AISI # #4320

Description

AISI 4320 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: AISI 4320

Category	Type	Steel Grade
Steel Grades	Carbon Steel	AISI 4320
		AISI 4161
		SAE 4161
		UNS G41610
		AISI 42B35
		AISI 42B40
		AISI 42B45
		AISI 42B50
		SAE 43BV12
		SAE 43BV14
		SAE 4317

Chemical composition(mass fraction)(wt.%) of the AISI 4320

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.22	0.15-0.35	0.45-0.65	0.035	0.04	0.4-0.6	1.65-2
Mo	Al	Cu	Nb	Ti	V	Ce
0.2-0.3
N	Co	Pb	B	Other

Mechanical Properties of steel grade AISI 4320

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)
391 (≥)	376 (≥)	23	14	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	433

Physical Properties of steel grade AISI 4320

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
23	-	-			0.42	-
454	544	-	14.3	131		-
743	-	13	43.2			222	141

Heat Treatment of steel grade AISI 4320

Heat treated : 1289°C - 1434°C

Technological Curves of steel grade AISI 4320

No Curve

Cross Reference Table (Equivalent Grade) of AISI 4320

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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