55NiCrMoV7

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#55NiCrMoV7

Description

55NiCrMoV7 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: 55NiCrMoV7

Category	Type	Steel Grade
Steel Grades	Tool Steel	55NiCrMoV7
		SKD 61
		X40CrMoV5-1
		SKD 62
		X35CrWMoV5
		SKD 7
		32CrMoV3-3
		SKD 8
		X38CrCoWV4-4-4
		SKT 3
		SKT 4

Chemical composition(mass fraction)(wt.%) of the 55NiCrMoV7

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.5-0.6	0.1-0.4	0.6-0.9	0.03	0.02	0.8-1.2	1.5-1.8
Mo	Al	Cu	Nb	Ti	V	Ce
0.35-0.55		0.25			0.05-0.15
N	Co	Pb	B	Other

Mechanical Properties of steel grade 55NiCrMoV7

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)
573 (≥)	136 (≥)	41	31	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	214

Physical Properties of steel grade 55NiCrMoV7

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
41	-	-			0.11	-
549	759	-	22.3	414		-
293	-	21	23.2			122	432

Heat Treatment of steel grade 55NiCrMoV7

Heat treated : 1878°C - 1233°C

Technological Curves of steel grade 55NiCrMoV7

No Curve

Cross Reference Table (Equivalent Grade) of 55NiCrMoV7

Grade	Standard	Country	Application
55NiCrMoV7	AFNOR	France	Carbide for cutting tools
55NiCrMoV7	AFNOR	France	Carbide for cutting tools
32CrMoV12-28			Carbide for cutting tools
32CrMoV12-28			Carbide for cutting tools
HS4-1			Carbide for cutting tools
HS4-1			Carbide for cutting tools
55NiCrMoV7			Spain structural alloy steel
55NiCrMoV7			Spain structural alloy steel
EN 55NiCrMoV7	EN		Euronorm Tool steel

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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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