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
Permendur 2V is a sophisticated magnetic alloy primarily designed for high-performance applications. Its unique composition enhances magnetic properties, making it an optimal choice for components that require high magnetic saturation and improved efficiency in electric machinery. Unlike traditional materials, it realizes significant weight reductions and facilitates lower resistance in electrical designs.
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 - Permendur 2V
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
Hc from 2.3 T Oe
At/m
Br from 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 Permendur 2V 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 favorable. The optimal heat treating temperature for achieving the best magnetic properties should be within the range of °F +/- 25°F (885°C +/- 15°C). It is crucial to not exceed °F (900°C). The heat treating atmosphere must be non-oxidizing and non-carburizing; hence, atmospheres like dry hydrogen or high vacuum are recommended. The duration at temperature should be between two to four hours. Cooling should be conducted at a rate of approximately 180 to 360°F (100 to 200°C) per hour down to a minimum of 700°F (370°C), after which it can be allowed to cool naturally to room temperature.
Typical Mechanical Properties
Effect of Heat Treating Temperature on Hardness - Permendur 2V
Temperature
Hardness Rockwell B
°F
°C
843
870
885
925
94
89
87
82(poor magnetic properties)
Permendur 2V - Current Inventory Stock
Soft Magnetic Alloys
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, improving motor efficiency while typically reducing the size and weight.
These alloys also serve as flux concentrators in electromagnetic pole pieces for varied high flux applications, including audio voice coils and medical radiology equipment. Additionally, the functionality extends to actuators, specialty transformers, and magnetic bearing applications.
If you seek more information about Hiperco 50A alloy supplier, don’t hesitate to reach out.
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