21CrMoV5-7

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#21CrMoV5-7

Description

21CrMoV5-7 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: 21CrMoV5-7

Category	Type	Steel Grade
Steel Grades	High Alloy	21CrMoV5-7
		14MoV6-3
		1.7715
		21MoV5-3
		1.5404
		17MoV8-4
		1.5406
		40CrMoV4-6
		1.7711
		24CrMoV5-5
		1.7733

Chemical composition(mass fraction)(wt.%) of the 21CrMoV5-7

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.25	0.40	0.40-0.80	0.030	0.030	1.20-1.50	≤ 0.60
Mo	Al	Cu	Nb	Ti	V	Ce
0.55-0.80	≤ 0.030				0.20-0.35
N	Co	Pb	B	Other

Mechanical Properties of steel grade 21CrMoV5-7

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)
582 (≥)	187 (≥)	23	21	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	132

Physical Properties of steel grade 21CrMoV5-7

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
31	-	-			0.43	-
474	516	-	21.3	443		-
654	-	44	12.2			313	113

Heat Treatment of steel grade 21CrMoV5-7

Heat treated : 1112°C - 1329°C

Technological Curves of steel grade 21CrMoV5-7

No Curve

Cross Reference Table (Equivalent Grade) of 21CrMoV5-7

Grade	Standard	Country	Application
ISO 21CrMoV5 7			High temperature bainite and martensite steel ISO standard internal combustion engine
EN 21CrMoV5-7	EN		Euronorm Stainless Steel

Available Suppliers

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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...

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