SN400A

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#SN400A

Description

SN400A Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SN400A

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SN400A
		SCM435TK
		SCM440TK
		SCr420TK
		SNB5
		SNB7
		SNB16
		SNB21-1~5
		SNB22-1~5
		SNB23-1~5
		SNB24-1~5

Chemical composition(mass fraction)(wt.%) of the SN400A

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.24			0.05	0.05
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other
				Thickness 6~100/mm

Mechanical Properties of steel grade SN400A

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)
744 (≥)	277 (≥)	24	11	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	241

Physical Properties of steel grade SN400A

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
24	-	-			0.32	-
421	387	-	33.3	132		-
727	-	14	12.2			412	311

Heat Treatment of steel grade SN400A

Heat treated : 1528°C - 1568°C

Technological Curves of steel grade SN400A

No Curve

Cross Reference Table (Equivalent Grade) of SN400A

Grade	Standard	Country	Application
SN400A		China	China Taiwan Structural steel

Available Suppliers

Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com

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