49 % Cobalt-Iron-Alloys

VACOFLUX and VACODUR for High Performance Motors

49% Cobalt-Iron alloys, such as VACOFLUX® and VACODUR®, are characterized  by a high magnetic saturation of up to 2.3 T. Therefore, they are generally suitable for all applications where high flux density and minimum weight are required.

Our alloys with cobalt content of 49 % and 2% vanadium offer low coercivity forces and yield superior performance parameter for electrics motors and generators.

By using our proprietary annealing temperatures, VACODUR alloys exhibit strength properties required for applications such as high speed rotating machines.

Benefits

  • Very high saturation polarization of 2.3 T (all qualities)
  • Low coercivity force down to 35 A/m (VACOFLUX 48)
  • Very high yield strength up to 800 MPa (VACODUR S Plus)

 

  • Electric motors and generators
  • Magnetic actuators
  • Flux guiding parts

Forms of Supply

Alloy Properties Strip Rods / Wire
VACOFLUX 48 Best in class 49% cobalt-iron grade for highest performance electric motors and generators  
VACOFLUX 50 Material for solid parts, e.g. actuators or flux guiding elements on request
VACODUR 49 Latest ASTM A801 alloy with adjustable strength level, optimized for stamping and interlocking  
VACOFLUX S plus Special 49% cobalt-iron grade with adjustable yield strength level up to 800 MPa for fast turning rotor systems  

 

Chemical Composition / Standards

Alloy Composition Standards
  Fe [%] Co [%] V [%]   IEC ASTM
VACOFLUX 48 Bal. 49 2   60404-8-6 F11 A801-09 Alloy Type 1
VACOFLUX 50 Bal. 49 2   60404-8-6 F11  
VACODUR 49 Bal. 49 2 +Nb 60404-8-6 F11 A801-09 Alloy Type 1
VACOFLUX S plus Bal. 49 2 +Ta, Zr 60404-8-6 F1  

 

  • Electric motors and generators
  • Magnetic actuators
  • Flux guiding parts

Forms of Supply

Alloy Properties Strip Rods / Wire
VACOFLUX 48 Best in class 49% cobalt-iron grade for highest performance electric motors and generators  
VACOFLUX 50 Material for solid parts, e.g. actuators or flux guiding elements on request
VACODUR 49 Latest ASTM A801 alloy with adjustable strength level, optimized for stamping and interlocking  
VACOFLUX S plus Special 49% cobalt-iron grade with adjustable yield strength level up to 800 MPa for fast turning rotor systems  

 

Chemical Composition / Standards

Alloy Composition Standards
  Fe [%] Co [%] V [%]   IEC ASTM
VACOFLUX 48 Bal. 49 2   60404-8-6 F11 A801-09 Alloy Type 1
VACOFLUX 50 Bal. 49 2   60404-8-6 F11  
VACODUR 49 Bal. 49 2 +Nb 60404-8-6 F11 A801-09 Alloy Type 1
VACOFLUX S plus Bal. 49 2 +Ta, Zr 60404-8-6 F1  

 

Strip Material

 
Alloy Condition

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 48 mag. opt. 35 18,000 2.30 2.18 1.5 145 2.2 335 +70
VACODUR 49 mag. opt. 50 15,000 2.30 2.10 1.6 150 2.5 333 +70
  mech. opt. 110 8,000 2.30 2.05 3.0 174 5.0 365 +70
VACOFLUX S plus mag.opt 120 6,000 2.30 1.95 3.0 186 5.0 352 +70
  mech. opt. 600 1,100 2.25 1.20 11.5 349 22 660 +70

Solid Material

Alloy Coercivity

HC [A/m]
max.
Permeability
µmax
Saturation
Polarization
JS [T]
Polarization
@ 10 kA/m
J10k [T]
Polarization
@ 20 kA/m
J20k [T]
Polarization
@ 40 kA/m
J40k [T]
Saturation Magnetostriction
λS [ppm]
VACOFLUX 50 100 7,000 2.30 2.27 2.28 2.29 +70

Strip Material

Alloy Condition Yield Strength
Rp0.2 [MPa]
Tensile Strength
Rm [MPa]
Young's Modulus
E [GPa]
Elongation
A [%]
Hardness
HV10
VACOFLUX 48 mag. opt. 190 220 200 2 180
VACODUR 49 mag. opt. 210 400 200 4 185
  mech. opt. 390 720 250 8 220
VACOFLUX S plus mag. opt. 400 800 250 6 230
  mech. opt 800 1,200 250 8 300

Solid Material

Alloy Yield Strength
Rp0.2 [MPa]
Tensile Strength
Rm [MPa]
Young's Modulus
E [GPa]
Elongation
A [%]
Hardness
HV10
VACOFLUX 50 250 350 215 3 205

Strip Material

Alloy Density

ρ [g/cm3]
Electrical Resistivity

ρel
Expansion Coefficient (20 to 200 °C)
α [10-6/K]
Thermal Conductivity
(25 °C)
λ [W/(mK)]
Curie Temperature

TC [°C]
VACOFLUX 48 8.12 0.42 9.7 33 950
VACODUR 49 8.12 0.42 8.9 32 950
VACOFLUX S plus 8.12 0.42 8.8 32 950

Solid Material

Alloy Density

ρ [g/cm3]
Electrical Resistivity

ρel
Expansion Coefficient (20 to 200 °C)
α [10-6/K]
Thermal Conductivity
(25 °C)
λ [W/(mK)]
Curie Temperature

T[°C]
VACOFLUX 50 8.12 0.42 9.4 30 950

Strip Material

 
Alloy Condition

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 48 mag. opt. 35 18,000 2.30 2.18 1.5 145 2.2 335 +70
VACODUR 49 mag. opt. 50 15,000 2.30 2.10 1.6 150 2.5 333 +70
  mech. opt. 110 8,000 2.30 2.05 3.0 174 5.0 365 +70
VACOFLUX S plus mag.opt 120 6,000 2.30 1.95 3.0 186 5.0 352 +70
  mech. opt. 600 1,100 2.25 1.20 11.5 349 22 660 +70

Solid Material

Alloy Coercivity

HC [A/m]
max.
Permeability
µmax
Saturation
Polarization
JS [T]
Polarization
@ 10 kA/m
J10k [T]
Polarization
@ 20 kA/m
J20k [T]
Polarization
@ 40 kA/m
J40k [T]
Saturation Magnetostriction
λS [ppm]
VACOFLUX 50 100 7,000 2.30 2.27 2.28 2.29 +70

Strip Material

Alloy Condition Yield Strength
Rp0.2 [MPa]
Tensile Strength
Rm [MPa]
Young's Modulus
E [GPa]
Elongation
A [%]
Hardness
HV10
VACOFLUX 48 mag. opt. 190 220 200 2 180
VACODUR 49 mag. opt. 210 400 200 4 185
  mech. opt. 390 720 250 8 220
VACOFLUX S plus mag. opt. 400 800 250 6 230
  mech. opt 800 1,200 250 8 300

Solid Material

Alloy Yield Strength
Rp0.2 [MPa]
Tensile Strength
Rm [MPa]
Young's Modulus
E [GPa]
Elongation
A [%]
Hardness
HV10
VACOFLUX 50 250 350 215 3 205

Strip Material

Alloy Density

ρ [g/cm3]
Electrical Resistivity

ρel
Expansion Coefficient (20 to 200 °C)
α [10-6/K]
Thermal Conductivity
(25 °C)
λ [W/(mK)]
Curie Temperature

TC [°C]
VACOFLUX 48 8.12 0.42 9.7 33 950
VACODUR 49 8.12 0.42 8.9 32 950
VACOFLUX S plus 8.12 0.42 8.8 32 950

Solid Material

Alloy Density

ρ [g/cm3]
Electrical Resistivity

ρel
Expansion Coefficient (20 to 200 °C)
α [10-6/K]
Thermal Conductivity
(25 °C)
λ [W/(mK)]
Curie Temperature

T[°C]
VACOFLUX 50 8.12 0.42 9.4 30 950

Downloads

Soft Magnetic Cobalt-Iron Alloys

Product Information

VAC Alloys for Motor and Generator Applications

Product Information

Motor Optimization using High Performance Magnetic Materials and Technologies

Product Information

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