9 to 27 % Cobalt-Iron VACOFLUX
Cost Optimized Cobalt-Iron Alloys with a High Saturation Polarization
Cobalt-Iron alloys in general have a very high polarization saturation. This group of CoFe alloys, with a reduced cobalt content of 9 - 27% cobalt, are optimized to meet the requirements of technically demanding, however cost sensitive applications.
Benefits:
- Reduced cost level due to lower cobalt contents
-
Optimized product parameters for dedicated applications
Strip material
- Electric motors and generators (VACOFLUX® X1)
- Magnetic actuators (VACOFLUX® 17, 18 HR and 9 CR)
Solid material
- Magnetic actuators (VACOFLUX® 17, 18 HR and 9 CR)
- Flux guiding parts (VACOFLUX® 27)
Forms of Supply
| Alloy | Description | Form of Delivery | |
|---|---|---|---|
| Strip | Rods / Wires | ||
| VACOFLUX X1 | New alloy which is closing the gap between electrical steel and 49 % cobalt-iron qualities | ✔ | |
| VACOFLUX 17 | Cost optimized cobalt-iron grade for magnetic actuators | ✔ | ✔ |
| VACOFLUX 18 HR | Special cobalt-iron quality with outstanding resistivity of 0.6 µΩm for high dynamic applications | ✔ | |
| VACOFLUX 9 CR | Corrosion resistant material for applications in aggresive enviroments | ✔ | |
| VACOFLUX 27 | Alloy with extremly high saturation of 2.38 T for static applications | ✔ |
Strip material
- Electric motors and generators (VACOFLUX® X1)
- Magnetic actuators (VACOFLUX® 17, 18 HR and 9 CR)
Solid material
- Magnetic actuators (VACOFLUX® 17, 18 HR and 9 CR)
- Flux guiding parts (VACOFLUX® 27)
Forms of Supply
| Alloy | Description | Form of Delivery | |
|---|---|---|---|
| Strip | Rods / Wires | ||
| VACOFLUX X1 | New alloy which is closing the gap between electrical steel and 49 % cobalt-iron qualities | ✔ | |
| VACOFLUX 17 | Cost optimized cobalt-iron grade for magnetic actuators | ✔ | ✔ |
| VACOFLUX 18 HR | Special cobalt-iron quality with outstanding resistivity of 0.6 µΩm for high dynamic applications | ✔ | |
| VACOFLUX 9 CR | Corrosion resistant material for applications in aggresive enviroments | ✔ | |
| VACOFLUX 27 | Alloy with extremly high saturation of 2.38 T for static applications | ✔ |
Product Details
Strip Material
| Alloy | Thickness t [mm] |
Coercivity HC [A/m] |
max. Permeability µmax |
Saturation Polarization JS [T] |
Induction @ 800 A/m B800 [T] |
Iron Loss @ 1.5 T/ 50 Hz PFE1.5/50 [W/kg] |
Iron Loss @ 1.5 T/ 1 kHz PFE1.5/1k [W/kg] |
Iron Loss @ 2 T/ 50 Hz PFE2/50 [W/kg] |
Iron Loss @ 2 T/ 1 kHz PFE2/1k [W/kg] |
Saturation Magneto-striction λS [ppm] |
|---|---|---|---|---|---|---|---|---|---|---|
| VACOFLUX 17 | 0.35 | 100 | 3,500 | 2.2 | 1.5 | 3.8 | 223 | 7.0 | 400 | +25 |
| VACOFLUX X1 | 0.2 | 50 | 15,000 | 2.2 | 1.7 | 2.1 | 144 | 5.0 | 490 | +25 |
Solid Material
| Alloy | Coercivity HC [A/m] |
max. Permeability µmax |
Saturation Polarization JS [T] |
Polarization @ 10 kA/m J10k [W/kg] |
Polarization @ 20 kA/m J20k [W/kg] |
Polarization @ 40 kA/m J40k [W/kg] |
Saturation Magnetostriction λS [ppm] |
|---|---|---|---|---|---|---|---|
| VACOFLUX 9 CR | 130 | 3,000 | 1.80 | 1.70 | 1.76 | 1.80 | +30 |
| VACOFLUX 17 | 140 | 3,200 | 2.22 | 1.94 | 2.09 | 2.19 | +25 |
| VACOFLUX 18 HR | 170 | 2,500 | 2.09 | 1.87 | 2.00 | 2.06 | +25 |
| VACOFLUX 27 | 150 | 3,000 | 2.38 | 2.11 | 2.27 | 2.38 | +40 |
Strip Material
| Alloy | Thickness t [mm] |
Yield Strength Rp0.2 [MPa] |
Tensile Strength Rm [MPa] |
Young's Modulus E [GPa] |
Elongation A [%] |
Hardness HV10 |
|---|---|---|---|---|---|---|
| VACOFLUX 17 | 0.35 | 250 | 450 | 200 | 32 | 140 |
| VACOFLUX X1 | 0.2 | 130 | 270 | 210 | 10 | 110 |
Solid Material
| Alloy | Yield Strength Rp0.2 [MPa] |
Tensile Strength Rm [MPa] |
Young's Modulus E [GPa] |
Elongation A [%] |
Hardness HV10 |
|---|---|---|---|---|---|
| VACOFLUX 9 CR | 330 | 490 | 180 | 35 | 170 |
| VACOFLUX 17 | 250 | 450 | 200 | 32 | 140 |
| VACOFLUX 18 HR | 400 | 600 | 210 | 28 | 200 |
| VACOFLUX 27 | 240 | 550 | 200 | 30 | 170 |
Strip Material
| Alloy | Thickness t [mm] |
Density ρ [g/cm3] |
Electrical Resistivity ρel [μΩm] |
Expansion Coefficient (20...200 °C) α [10-6/K] |
Thermal Conductivity (25 °C) λ [W/(mK)] |
Curie Temperature TC [°C] |
|---|---|---|---|---|---|---|
| VACOFLUX 17 | 0.35 | 7.94 | 0.41 | 10.8 | 34 | 950 |
| VACOFLUX X1 | 0.2 | 7.90 | 0.30 | 11 | 35 | 940 |
Solid Material
| Alloy | Density ρ [g/cm3] |
Electrical Resistivity ρel [μΩm] |
Expansion Coefficient (20...200 °C) α [10-6/K] |
Thermal Conductivity (25 °C) λ [W/(mK)] |
Curie Temperature TC [°C] |
|---|---|---|---|---|---|
| VACOFLUX 9 CR | 7.75 | 0.79 | 10.9 | 20 | 800 |
| VACOFLUX 17 | 7.94 | 0.41 | 10.7 | 34 | 920 |
| VACOFLUX 18 HR | 7.81 | 0.65 | 10.5 | 25 | 920 |
| VACOFLUX 27 | 7.99 | 0.15 | 10.8 | 67 | 950 |
Strip Material
| Alloy | Thickness t [mm] |
Coercivity HC [A/m] |
max. Permeability µmax |
Saturation Polarization JS [T] |
Induction @ 800 A/m B800 [T] |
Iron Loss @ 1.5 T/ 50 Hz PFE1.5/50 [W/kg] |
Iron Loss @ 1.5 T/ 1 kHz PFE1.5/1k [W/kg] |
Iron Loss @ 2 T/ 50 Hz PFE2/50 [W/kg] |
Iron Loss @ 2 T/ 1 kHz PFE2/1k [W/kg] |
Saturation Magneto-striction λS [ppm] |
|---|---|---|---|---|---|---|---|---|---|---|
| VACOFLUX 17 | 0.35 | 100 | 3,500 | 2.2 | 1.5 | 3.8 | 223 | 7.0 | 400 | +25 |
| VACOFLUX X1 | 0.2 | 50 | 15,000 | 2.2 | 1.7 | 2.1 | 144 | 5.0 | 490 | +25 |
Solid Material
| Alloy | Coercivity HC [A/m] |
max. Permeability µmax |
Saturation Polarization JS [T] |
Polarization @ 10 kA/m J10k [W/kg] |
Polarization @ 20 kA/m J20k [W/kg] |
Polarization @ 40 kA/m J40k [W/kg] |
Saturation Magnetostriction λS [ppm] |
|---|---|---|---|---|---|---|---|
| VACOFLUX 9 CR | 130 | 3,000 | 1.80 | 1.70 | 1.76 | 1.80 | +30 |
| VACOFLUX 17 | 140 | 3,200 | 2.22 | 1.94 | 2.09 | 2.19 | +25 |
| VACOFLUX 18 HR | 170 | 2,500 | 2.09 | 1.87 | 2.00 | 2.06 | +25 |
| VACOFLUX 27 | 150 | 3,000 | 2.38 | 2.11 | 2.27 | 2.38 | +40 |
Strip Material
| Alloy | Thickness t [mm] |
Yield Strength Rp0.2 [MPa] |
Tensile Strength Rm [MPa] |
Young's Modulus E [GPa] |
Elongation A [%] |
Hardness HV10 |
|---|---|---|---|---|---|---|
| VACOFLUX 17 | 0.35 | 250 | 450 | 200 | 32 | 140 |
| VACOFLUX X1 | 0.2 | 130 | 270 | 210 | 10 | 110 |
Solid Material
| Alloy | Yield Strength Rp0.2 [MPa] |
Tensile Strength Rm [MPa] |
Young's Modulus E [GPa] |
Elongation A [%] |
Hardness HV10 |
|---|---|---|---|---|---|
| VACOFLUX 9 CR | 330 | 490 | 180 | 35 | 170 |
| VACOFLUX 17 | 250 | 450 | 200 | 32 | 140 |
| VACOFLUX 18 HR | 400 | 600 | 210 | 28 | 200 |
| VACOFLUX 27 | 240 | 550 | 200 | 30 | 170 |
Strip Material
| Alloy | Thickness t [mm] |
Density ρ [g/cm3] |
Electrical Resistivity ρel [μΩm] |
Expansion Coefficient (20...200 °C) α [10-6/K] |
Thermal Conductivity (25 °C) λ [W/(mK)] |
Curie Temperature TC [°C] |
|---|---|---|---|---|---|---|
| VACOFLUX 17 | 0.35 | 7.94 | 0.41 | 10.8 | 34 | 950 |
| VACOFLUX X1 | 0.2 | 7.90 | 0.30 | 11 | 35 | 940 |
Solid Material
| Alloy | Density ρ [g/cm3] |
Electrical Resistivity ρel [μΩm] |
Expansion Coefficient (20...200 °C) α [10-6/K] |
Thermal Conductivity (25 °C) λ [W/(mK)] |
Curie Temperature TC [°C] |
|---|---|---|---|---|---|
| VACOFLUX 9 CR | 7.75 | 0.79 | 10.9 | 20 | 800 |
| VACOFLUX 17 | 7.94 | 0.41 | 10.7 | 34 | 920 |
| VACOFLUX 18 HR | 7.81 | 0.65 | 10.5 | 25 | 920 |
| VACOFLUX 27 | 7.99 | 0.15 | 10.8 | 67 | 950 |
Related Products
VACOFLUX® X1
High power combined with low weight is a central feature of motors built with this new low-cobalt-content alloy. Typically, motors can be realised that have a 20 to 30 % higher power density than with electrical steel.
49 % Cobalt-Iron
Due to their high magnetic saturation and low coercivity, the cobalt-iron alloys VACOFLUX and VACODUR offer the best possible conditions for powerful electric motors/generators and magnetic actuators. .
Lamination Stacks
Lamination stacks are packages using single laminations separated by electrical insulating layers to surpress eddy current losses during dynamic magnetic load.
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