Permendur 2V Tech Data

Type Analysis

Element

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Min

Max

Carbon

--

0.01

Manganese

--

0.05

Silicon

--

0.05

Cobalt

--

48.75

Vanadium

--

1.90

Iron

Bal

Description

Hiperco 50A alloy is a soft magnetic alloy which has been used primarily as magnetic core material in electrical core material in electrical equipment requiring high permeability values at very high magnetic flux densities.
The magnetic characteristics of this alloy permit weight reduction, reduction of copper turns, and insulation in the end product when compared to other magnetic alloys having lower permeabilities in the same magnetic field range.

Physical Properties

Specific gravity.........................................8.20
Density
lb/cu in ................................................... 0.295
kg/cu m ...................................................
Electrical resistivity
ohms c/mf ................................................ 253
microhm-mm ........................................... 420

Mean Coefficient of Thermal Expansion

Temperature

Coefficient

68°F to

20°C to

10(-6)/°F

10(-6)/°C

392
752

200
400
600
800

5.28
5.61
5.83
6.28

9.5
10.1
10.5
11.3

Curie Temperature
°F ...........................................................
°C ............................................................ 932
Saturation induction at
H = 250 oersteds(kilogausses) .................. 23
H = 19.9 at/m(Telsa) ................................ 2.3
Saturation magnetostriction
change in unit length x 10(-6) .................. 60

Magnetic Properties

Typical D.C. Magnetic Properties - Hiperco Alloy 50A
Solid ring specimen using ASTM-A-596 test method. Material heat treated to indicated temperatures.

Magnetic Properties

°F(843°C)

°F(870°C)

°F(885°C)

DC max perm
Hcfrom 2.3 T Oe
At/m
Brfrom 2.3 T T

4.0
318
1.6

2.5
200
1.6

10,000
1.0
56
1.6

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

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
.

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1-1/2"

SFPM
IPR

25
.002

Drilling

Drill
Dia.

3/8"

SFPM
IPR

30
.005

3/4"

SFPM
IPR

30
.010

Reaming

Under 1/2"

SFPM
IPR

65
.005

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

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.

Heat Treatment

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

• 1. For best magnetic 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. Heat treating temperature for best magnetic properties should be °F +/- 25°F (885°C +/- 15°C).Do not exceed °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.

Typical Mechanical Properties

Effect of Heat Treating Temperature on Hardness - Hiperco 50A alloy

Temperature

Hardness Rockwell B

°F

°C

843
870
885
925

94
89
87
82(poor magnetic properties)

Permendur 2V - Current Inventory Stock

Our Hiperco® alloys provide the highest magnetic induction of any commercially available soft magnetic material while exhibiting high permeability and low core loss.

These iron-cobalt alloys offer nearly 25% higher induction and 30% lower losses than conventional electrical steel and are available in thicknesses from 0.1 to 0.5mm. We work with customers to tailor mechanical properties based on their application needs.

Hiperco alloys are used in motors and generators to achieve a combination of maximum torque density and the lowest losses. They offer significantly higher power and torque density as compared to conventional electric steels. They help improve motor efficiency and typically reduce the size and weight of the motor or generator.

Hiperco alloys also work as flux concentrators in electromagnetic pole pieces for different high flux applications, such as audio voice coils and medical radiology. These alloys are also used in actuators, specialty transformers, magnetic bearing applications.

Want more information on Hiperco 50A alloy supplier? Feel free to contact us.