Strip - AFK®18 Fe Co180 pages

Cold Rolled Strip

AFK 18
AFK18 is an iron-Cobalt soft magnetic alloy suitable for compact generators and motor laminations.
International standards
Chemical composition %weight
Co
18

ASTM A 801, IEC404
Typical value

Fe
Bal

Physical properties
Density
(g/cm3)
7,9

Resistivity
(µ Ώ.cm)
30

CTE
0-100°C
10.5

Curie T°
C
940

Saturation Induction
Bs (G)
23000

Magnetic DC properties

2h at 700°
C
2h at 900°
C

Hc (Oe)
1,90
0,75

B at 31Oe
17500
17500

B at 63Oe
18500
18500

B at 125Oe
20000
20000

f=50 Hz
B=1,7T
6.7
4.3

f=400 Hz
B=1,5T
77
66

f=400 Hz
B=1,7T
99
88

Magnetic AC properties: Magnetic losses (W/kg)
f=50Hz
B=1,5T
5.5
3.3

2h at 700°
C
3h at 900°
C

Mechanical properties (Typical values)
Hardness
Ultimate strength
Elongation %
Yield strength
HV
(MPa)
(MPa)
Hard
310
850
800
2
2h at 700°
C
185
470
355
19
3h at 900°
C
175
380
210
31
All values declared are typical values measured on rings 36x25mm of 0.34mm material thickness after:
- 2h @ 700° cooling 250°C/h under pure and dry hy drogen
C,
- 3h @ 900° cooling 250°C/h under pure and dry hy drogen
C,
Standard Delivery & dimensions available
Form

Thickness

Width

Length

Temper

Strip - Sheet

0.10 to 3.5 mm

10 to 320 mm

500 to 3500 mm

Hard

The data enclosed in this document are only given as indicative values and correspond to our standard product. Different specific requirement are
subject to discussion and formal approval by Aperam Alloys Imphy. For further information or special request, please contact us.

Aperam Alloys Imphy
B.P. 1
Avenue Jean Jaurès
F- 58160 Imphy

Tel + 33 3 86 21 30 00
Fax + 33 3 86 21 31 00
nickel.alloys@aperam.com
www.aperam.com/alloys-imphy

© March 2013

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