STC440

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#STC440

Description

STC440 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: STC440

Category	Type	Steel Grade
Steel Grades	Carbon Steel	STC440
		SG255
		SG26
		SG295
		SG30
		SG325
		SG33
		SG365
		SG37
		STC370
		STC38

Chemical composition(mass fraction)(wt.%) of the STC440

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.25	0.35	0.3-0.9	0.04	0.04
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade STC440

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 (≥)	352 (≥)	41	13	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	413

Physical Properties of steel grade STC440

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
42	-	-			0.13	-
237	655	-	11.3	314		-
262	-	33	13.2			244	234

Heat Treatment of steel grade STC440

Heat treated : 1657°C - 1721°C

Technological Curves of steel grade STC440

No Curve

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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