340-550

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#340-550

Description

340-550 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 340-550

Category	Type	Steel Grade
Steel Grades	Mould Steel	340-550
		LA-71
		LA-75
		LA-90
		LA-100
		200-400
		200-400W
		230-450
		230-450W
		270-480
		270-480W

Chemical composition(mass fraction)(wt.%) of the 340-550

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
			0.035	0.035
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other
				By manufacturer decided to

Mechanical Properties of steel grade 340-550

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)
345 (≥)	582 (≥)	21	34	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	432

Physical Properties of steel grade 340-550

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	-	-			0.13	-
115	683	-	21.3	142		-
755	-	12	24.2			434	344

Heat Treatment of steel grade 340-550

Heat treated : 1267°C - 1391°C

Technological Curves of steel grade 340-550

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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