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Fecrco Magnet

FeCrCo magnets, a new type has come into the world in the 1970's. These magnets' properties are featured with higher permanent magnetic property, comparable to those of cast AI-NI-CO magnets, and with a good ductility in the as-quenched state, but with Co content 50% smaller than AINICO magnet. FeCrCo machinable permanent magnetic alloy is also famous for its great plasticity, ductility and machinability, this performance far better than casting permanent magnetic alloys, while its high working temperaure outshines that of NdFeB permanent magnet. They can be made into semi-hard magnetic alloy, especially suitable for making the small and thin elements with accurate dimensions and complicated shapes, such as wire, tube, bar, strip, etc.

Detailed Description

Feature:

Fe-Cr-Co alloy has a big advantage, namely its high Curie temperature, Tc = 680ºC for the left and right (Tc slightly different in different alloy grades) so that its temperature can reach 400ºC, reversible temperature coefficient is small, is -0.0128%ºC, the magnetic stability of the well for the high-precision components.

1. Properties of FeCrCo permanent magnet alloy are close to properties of permanent magnet alloy.
2. FeCrCo permanent magnet alloy has good machining performance, and can be drilledã€planedã€wearedã€stampted and other machining operations.
3. FeCrCo magnets can be made into small ã€slender componets of various shapes, the minimum wire diameter can be up to 0.05mm, the thickness of thinnest strip is only 0.1mm.
4. FeCrCo permanent magnet alloy has excellent temperature stablityã€good corrosion resistance and high curie temperature(about 680â„ƒ), the maximum working temperature is 400â„ƒ.

Properties	Max.Energy product (BH)max	Residual Fulx Br	Coercive Force Hcj	IntIntrinsic Corecive Force Hcj	Density	Temperature CofficiencÎ± (Br)	Remark


Grade	Minimum value				Typical value
	KJ/m3 (MGOe)	mT (kGs)	KA/m (kOe)	KA/m ( kOe)	g/cm3	%k	Isotropy
	KJ/m3 (MGOe)	mT (kGs)	KA/m (kOe)	KA/m ( kOe)	g/cm3	%k
CrFeCo4/1 Semi-hard magnetic	4-8 (0.5-1.0)	800-1000 (8.5-10)	8-31 (0.10-0.40)	9-23 (0.11-0.4)	7.7	-0.03
CrFeCo10/3	10-13 (1.1-1.6)	800-900 (8.9-9.0)	31-39 (0.40-0.48)	32-40 (0.41-0.49)	7.7	-0.03
CrFeCo12/4	12-18 (1.5-2.2)	750-800 (7.5-8.5)	40-46 (0.50-0.58)	41-47 (0.51-0.59)	7.7	-0.02
CrFeCo12/5	12-16 (1.5-2.0)	700-800 (7.0=8.0)	42-48 (0.53-0.60)	43-49 (0.54-0.61)	7.7	-0.02	Anisotropy
CrFeCo1/1 Semi-hard magnetic	1-9 (0.1-1.1)	900-1300 (9-13)	2-8 (0.025-0.1)	2-8 (0.025-0.1)	7.7	-0.03
CrFeCo12/2 Semi-hard magnetic	12-36 (1.5-4.5)	1300-1450 (130.0-14.5)	12-40 (0.15-0.5)	13-41 (0.16-0.51)	7.7	-0.03
CrFeCo24/6	24-30 (3.0-3.8)	900-1100 (9.9-11)	55-66 (0.70-0.83)	57-67 (0.71-0.84)	7.7	-0.02
CrFeCo28/5	28-36 (3.5-4.5)	1100-1250 (11.0-12.5)	49-58 (0.61-0.73)	50-59 (0.62-0.74)	7.7	-0.02
CrFeCo44/4	44-52 (5.5-6.5)	1300-1450 (13.0-14.5)	44-51 (0.56-0.64)	45-52 (0.57-0.64)	7.7	-0.03
CrFeCo48/5	48-55 (6.0-6.9)	1320-1450 (13.2-14.5)	48-53 (0.6-0.67)	49-54 (0.61-0.68)	7.7	-0.03

Sizes and models of FeCrCo permanent magnet alloy

Shape

Size(mm)

State

Strip

Thickness*width
(0.05-4) * (100-200)

Soft,hard

Wire

Ï†0.1ï½žÏ†8.0

Soft,hard

Bar

Ï†8-Ï†60

Forging
hot-rolling

tube

Outer diameter*Inner diameter
Ï†1*(Ï†0.1-Ï†0.5)
-Ï†30(Ï†1-Ï†10)

Soft,hard

What is the Fecrco Magnet?
Features: Iron, cobalt chromium magnet is the early 1970s, the new permanent magnetism materials. The magnetic cobalt nickel and aluminum, plane eight permanent magnet is extremely magnetization, plane and multipole magnetization mechanical processing, especially suitable for the advantages and complex shape of small size requirement, low magnetic components.

Fecrco Magnet Usage
Fe - Cr - Spinodal decomposition Co alloy is according to the theory of Fe - in the alloy based on binary Cr plus Co, FeCrCo magnet in high form a single alpha, then, through the Spinodal decomposition form alpha 1 and 2, then the alpha tempering process, two phase composition difference, thus can achieve higher magnetic.