XM-21J

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#XM-21J

Description

XM-21J High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: XM-21J

Category	Type	Steel Grade
Steel Grades	High Alloy	XM-21J
		S30400
		304
		S30403
		304L
		S30409
		304H
		S30415
		S30451
		304N
		S30452

Chemical composition(mass fraction)(wt.%) of the XM-21J

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.08	0.75	2	0.045	0.03	18-20	8-10.5
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other
0.16-0.3

Mechanical Properties of steel grade XM-21J

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)
544 (≥)	633 (≥)	43	42	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	341

Physical Properties of steel grade XM-21J

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
24	-	-			0.42	-
323	547	-	14.3	124		-
775	-	14	41.2			341	331

Heat Treatment of steel grade XM-21J

Heat treated : 1434°C - 1321°C

Technological Curves of steel grade XM-21J

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