MT-309S

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#MT-309S

Description

MT-309S High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: MT-309S

Category	Type	Steel Grade
Steel Grades	High Alloy	MT-309S
		MT443
		MT446-1
		MT446-2
		29-4
		29-4-2
		MT-301
		MT-302
		MT-304
		MT-304L
		MT-305

Chemical composition(mass fraction)(wt.%) of the MT-309S

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.08	1	2	0.04	0.03	22-24	12-15
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade MT-309S

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)
821 (≥)	192 (≥)	34	24	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	321

Physical Properties of steel grade MT-309S

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
11	-	-			0.24	-
362	398	-	42.3	111		-
625	-	13	23.2			133	134

Heat Treatment of steel grade MT-309S

Heat treated : 1128°C - 1254°C

Technological Curves of steel grade MT-309S

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