M-252

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#M-252

Description

M-252 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: M-252

Category	Type	Steel Grade
Steel Grades	High Alloy	M-252
		LANG ALLOY 5R
		LANG ALLOY 7R
		LANG ALLOY 8R
		LANG ALLOY 16R
		LANG ALLOY 20V
		Lapelloy
		Lapelloy C
		LowExpansion 43-PH
		M-22
		M-152

Chemical composition(mass fraction)(wt.%) of the M-252

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.15	0.5	0.5			20	...
Mo	Al	Cu	Nb	Ti	V	Ce
10	1			2.6
N	Co	Pb	B	Other
	10		0.005

Mechanical Properties of steel grade M-252

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)
829 (≥)	215 (≥)	22	21	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	444

Physical Properties of steel grade M-252

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
33	-	-			0.12	-
637	912	-	22.3	333		-
191	-	41	33.2			241	341

Heat Treatment of steel grade M-252

Heat treated : 1762°C - 1591°C

Technological Curves of steel grade M-252

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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Stainless Steels

Tube/Pipe

Steel Profiles

Cold rolled/hot rolled

Wire rod

Quality special steel

Superalloy & High Temperature Alloy