MT440A

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#MT440A

Description

MT440A High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: MT440A

Category	Type	Steel Grade
Steel Grades	High Alloy	MT440A
		MT316
		MT316L
		MT317
		MT321
		MT347
		MT403
		MT410
		MT414
		MT416Se
		MT431

Chemical composition(mass fraction)(wt.%) of the MT440A

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.6-0.75	1	1	0.04	0.03	16-18
Mo	Al	Cu	Nb	Ti	V	Ce
		≤0.75
N	Co	Pb	B	Other

Mechanical Properties of steel grade MT440A

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)
459 (≥)	491 (≥)	41	13	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	324

Physical Properties of steel grade MT440A

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
13	-	-			0.32	-
633	431	-	33.3	413		-
886	-	43	23.2			443	331

Heat Treatment of steel grade MT440A

Heat treated : 1139°C - 1527°C

Technological Curves of steel grade MT440A

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