Soft magnetic alloys Supermendur Permendur 2V Hiperco Vacoflux 50A

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Product details

Soft magnetic alloys Supermendur Permendur 2V Hiperco Vacoflux 50A

High Saturation magnetic induction soft magnetic alloys 1J22(GB/T15002-1994)

Permendur 2V is high saturation magnetic induction strength iron cobalt vanadium soft magnetic alloy, its saturated magnetic induction intensity was the highest (2.4T) in the existing soft magnetic material, Curie point is also very high (980°C), the saturation magnetostriction coefficient (60 - 100 * 106) is also highest. Due to high saturation magnetic induction strength, in, it can greatly reduce the volume in the production of the motors who have the same power, and it can produce a large suction force when making an electromagnet with the same cross-sectional area. Due to the high Curie point, the Hiperco 50A alloy can still work when the other soft magnetic materials has been completely demagnetization under high temperature, and keep the good magnetic stability. Due to the large magnetostrictive coefficient, Permendur 2V alloy is very suitable for making the magnetostrictive transducer, the output energy is high, and the work efficiency is also high. The resistivity of the alloy is low(0.27 M /), it is not suitable for use in high frequency. The price is more expensive, easy to oxidation, processing performance is poor, add the appropriate amount of nickel or other elements, can improve its processing.

Relative Grade:

Grade	U.K.	Germany	U.S.A.	Russia	Standard
1J22	Permendur	Vacoflux 50	Supermendur HiperCo50	50kΦ	GB/T15002-1994

Grade and Chemical Composition (see Table 1)

Table 1 Grade and Chemical Composition

Grade	Chemical Composition (%)
Grade	C≤	Mn≤	Si≤	P≤	S≤	Cu≤	Ni≤	Co	V	Fe
1J22	0.04	0.30	0.30	0.020	0.020	0.20	0.50	49.0~51.0	0.80~1.80	Balance

Physical Property (see Table2 )

Table 2 Physical Property

Grade	Resistivity /(μΩ•m)	Density(g/cm³)	Curie point/°C	Magnetostriction Cofficient/(×10^-6)	Tensile Strength,N/m㎡
					Unannealed	Annealed
1J22	0.40	8.20	980	60~100	1325	490

Table 3 DC Magnetic Property Requirements After Heat-Treated

Grade	Type	Minimum Magnetic Flux Density for Different ;Magnetic Field Strengths(T)						Coercive force Hc / (A/m)≤
Grade	Type	B400	B800	B1600	B2400	B4000	B8000	Coercive force Hc / (A/m)≤
1J22	Cold rolled Strips	1.70	1.90	2.00	2.10	2.20	2.25	110
1J22	Wires,Forgings,Billets,Bars	1.60	1.70	1.80	2.05	2.15	2.20	144

Table 4 Mean Coefficient of Thermal Expansion

Temperature		Coefficient
68°F to	20°C to	10^-6/°F	10^-6/°C
392 752 1112 1472	200 400 600 800	5.28 5.61 5.83 6.28	9.5 10.1 10.5 11.3

Table Workability Machinability

The following charts include typical machining parameters used to machine Hiperco 50A alloy. The data listed should be used as a guide for initial machine setup only.

High Speed Tools
Turning- Single Point And Box Tools	High Speed Tools		SFPM IPR	25-30 .003-.010
Turning- Single Point And Box Tools	Carbide Tools		SFPM IPR	70-90 .020-.007
Turning And Forming Tool Width	Cut-Off Tool Width	1/16"	SFPM IPR	25 .001
		1/8"	SFPM IPR	25 .002
		1/4"	SFPM IPR	25 .003
	Form Tool Width	1/2"	SFPM IPR	25 .004
		1"	SFPM IPR	25 .0025
		1-1/2"	SFPM IPR	25 .002
Drilling	Drill Dia.	3/8"	SFPM IPR	30 .005
Drilling	Drill Dia.	3/4"	SFPM IPR	30 .010
Reaming	Under 1/2"		SFPM IPR	65 .005
Reaming	Over 1/2"		SFPM IPR	65 .010
Die Threading	T.P.I	3-7½	SFPM	8
		8-15	SFPM	10
		Over 16	SFPM	15
Tapping	T.P.I	3-7½	SFPM	6
		8-15	SFPM	7
		16-24	SFPM	11
		Over 25	SFPM	15
Milling	SFPM IPR			20-35 .001-.005
Broaching			SFPM	8-15
Broaching	Chip Load		IPT	.002

When using carbide tools, surface speed feet/minute (SFPM) can be increased between 2 and 3 times over the high speed suggestions. Feeds can be increased between 50 and 100%.
Figures used for all metal removal operations covered are average. On certain work, the nature of the part may require adjustment of speeds and feeds. Each job has to be developed for best production results with optimum tool life. Speeds or feeds should be increased or decreased in small steps.

Table 6 Heat Treatment

When selecting a heat treating temperature for the application, two factors should be considered:

1. For best magnetic soft characteristics, select the highest suggested temperature.
2. If the application requires specific mechanical properties higher than that produced when employing the highest temperature, select the temperature that will provide desired mechanical properties.

As temperature decreases, magnetic properties become less magnetic soft. Heat treating temperaturefor best soft magnetic properties should be 1625°F +/- 25°F (885°C +/- 15°C).Do not exceed 1652°F(900°C).
The heat treating atmosphere used must be nonoxiding and noncarburizing. Atmospheres such as dry hydrogen or high vacuum are suggested. Time at temperature should be two to four hours. Cool at a rate of nominally 180 to 360°F (100 to 200°C) per hour to a temperature of least 700°F(370°C), then cool naturally to room temperature

Table 7 Typical Mechanical Properties
Effect of Heat Treating Temperature on Hardness - Hiperco 50A alloy