SAE 4012

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#SAE #4012

Description

SAE 4012 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SAE 4012

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SAE 4012
		SAE 3310
		SAE 3312
		AISI E3316
		SAE 3316
		SAE 3325
		SAE 3335
		SAE 3340
		SAE 3415
		SAE 3435
		SAE 3450

Chemical composition(mass fraction)(wt.%) of the SAE 4012

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.09-0.14	0.15-0.3	0.75-1	0.04	0.05
Mo	Al	Cu	Nb	Ti	V	Ce
0.15-0.25
N	Co	Pb	B	Other

Mechanical Properties of steel grade SAE 4012

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)
417 (≥)	877 (≥)	21	13	13	Solution and Aging, Annealing, Ausaging, Q+T,etc	433

Physical Properties of steel grade SAE 4012

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	-	-			0.11	-
579	763	-	43.3	324		-
735	-	14	34.2			243	142

Heat Treatment of steel grade SAE 4012

Heat treated : 1794°C - 1582°C

Technological Curves of steel grade SAE 4012

No Curve

Cross Reference Table (Equivalent Grade) of SAE 4012

Grade	Standard	Country	Application
SAE NVl(1541)	SAE	USA	precipitation hardening
SAE NV2(1547)	SAE	USA	precipitation hardening
SAE NV3	SAE	USA	precipitation hardening
SAE NV4(3140)	SAE	USA	precipitation hardening
SAE NV5(8645)	SAE	USA	precipitation hardening
SAE NV6(5150)	SAE	USA	precipitation hardening
SAE NV7(4140)	SAE	USA	precipitation hardening
SAE NV8		USA	precipitation hardening
SAE NV9	SAE	USA	precipitation hardening
SAE HNVl	SAE	USA	precipitation hardening
SAE HNV2	SAE	USA	precipitation hardening
SAE HNV3	SAE	USA	precipitation hardening
SAE HNV4	SAE	USA	precipitation hardening
SAE HNV5	SAE	USA	precipitation hardening
SAE HNV6	SAE	USA	precipitation hardening
SAE HNV7(71360)	SAE	USA	precipitation hardening
SAE HNV8	SAE	USA	precipitation hardening
SAE EVl	SAE	USA	precipitation hardening
SAE EV2	SAE	USA	precipitation hardening
SAE EV3	SAE	USA	precipitation hardening

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