SCH21

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#SCH21

Description

SCH21 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: SCH21

Category	Type	Steel Grade
Steel Grades	Mould Steel	SCH21
		SCH13X
		SCH15
		SCH15X
		SCH16
		SCH17
		SCH18
		SCH19
		SCH20
		SCH20X
		SCH20XNb

Chemical composition(mass fraction)(wt.%) of the SCH21

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.25-0.35	1.75	1.5	0.04	0.04	23-27	19-22
Mo	Al	Cu	Nb	Ti	V	Ce
≤0.5
N	Co	Pb	B	Other
≤ 0.2

Mechanical Properties of steel grade SCH21

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)
962 (≥)	328 (≥)	32	13	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	411

Physical Properties of steel grade SCH21

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
34	-	-			0.24	-
449	147	-	14.3	122		-
479	-	23	22.2			441	124

Heat Treatment of steel grade SCH21

Heat treated : 1444°C - 1921°C

Technological Curves of steel grade SCH21

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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