MT321

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#MT321

Description

MT321 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: MT321

Category	Type	Steel Grade
Steel Grades	High Alloy	MT321
		MT302
		MT303Se
		MT304
		MT304L
		MT305
		MT309S
		MT310S
		MT316
		MT316L
		MT317

Chemical composition(mass fraction)(wt.%) of the MT321

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.08	1	2	0.04	0.03	17-20	9-13
Mo	Al	Cu	Nb	Ti	V	Ce
				5*C~0.6
N	Co	Pb	B	Other

Mechanical Properties of steel grade MT321

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)
512 (≥)	916 (≥)	34	31	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	143

Physical Properties of steel grade MT321

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	-	-			0.12	-
659	332	-	12.3	244		-
676	-	21	12.2			433	324

Heat Treatment of steel grade MT321

Heat treated : 1648°C - 1421°C

Technological Curves of steel grade MT321

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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Tube/Pipe

Steel Profiles

Cold rolled/hot rolled

Wire rod

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Superalloy & High Temperature Alloy