AISI 4427

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#AISI # #4427

Description

AISI 4427 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: AISI 4427

Category	Type	Steel Grade
Steel Grades	Carbon Steel	AISI 4427
		AISI 4340
		SAE 4340
		UNS G43400
		AISI E4340
		SAE E4340
		UNS G43406
		SAE 4419
		UNS G44190
		SAE 4422
		UNS G44220

Chemical composition(mass fraction)(wt.%) of the AISI 4427

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.24-0.29	0.15-0.3	0.7-0.9	0.035	0.04
Mo	Al	Cu	Nb	Ti	V	Ce
0.35-0.45
N	Co	Pb	B	Other

Mechanical Properties of steel grade AISI 4427

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)
154 (≥)	817 (≥)	42	43	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	114

Physical Properties of steel grade AISI 4427

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
22	-	-			0.44	-
584	483	-	44.3	121		-
922	-	11	21.2			231	343

Heat Treatment of steel grade AISI 4427

Heat treated : 1457°C - 1398°C

Technological Curves of steel grade AISI 4427

No Curve

Cross Reference Table (Equivalent Grade) of AISI 4427

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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