SG255

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#SG255

Description

SG255 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SG255

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SG255
		SGLH490
		SGLH540
		SGLH C
		SGLC400
		SGLC440
		SGLC490
		SGLC570
		SGLC C
		SGLC D
		SGLC DD

Chemical composition(mass fraction)(wt.%) of the SG255

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.2	No provisions	0.3	0.03	0.03
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade SG255

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)
764 (≥)	628 (≥)	32	41	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	322

Physical Properties of steel grade SG255

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
44	-	-			0.32	-
434	938	-	11.3	142		-
645	-	41	21.2			142	411

Heat Treatment of steel grade SG255

Heat treated : 1581°C - 1315°C

Technological Curves of steel grade SG255

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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