FeNi Soft Magnetic Iron Nickel Alloy Magnets

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FeNi Soft Magnetic Iron Nickel Alloy Magnet

FeNi Soft Magnetic Alloy (GBn198-1988)

Grade & Chemical Composition (see Table 1)

Table 1 Grade & Chemical Composition

Sort

Grade

Chemical Composition (%)

C≤

P≤

S≤

High

magnetic

conductivity

higher

saturation

magnetic

flux

density

soft

magnetic

alloy

1J46

0.03

0.020

0.02

0.60~1.1

0.15~0.3

45.0~46.5

≤0.20

Balance

1J50

0.30~0.6

0.15~0.3

49.0~50.5

≤0.20

1J54

0.30~0.6

1.10~1.40

49.0~51.0

3.80~4.2

≤0.20

High initial

permeability

of soft

magnetic

alloy

1J76

0.30~0.60

0.15~0.3

75.0~76.5

1.80~2.2

4.80~5.2

1J77

0.30~0.60

0.15~0.3

75.0~78

3.9~4.5

4.80~6

1J79

0.60~1.1

0.30~0.50

78.5~80.0

3.80~4.10

≤0.20

1J80

0.60~1.1

1.10~1.5

79.0~81.0

2.6~3.0

≤0.20

1J85

0.03

0.020

0.02

0.30~0.60

0.15~0.3

79.0~81.0

4.80~5.20

≤0.20

1J86

≤1.00

≤0.30

80.5~81.5

5.80~6.2

Moment

magnetic

alloy

1J34

0.30~0.60

0.15~0.30

33.5~35.0

28.5~30

2.80~3.2

≤0.20

1J51

0.30~0.60

0.15~0.30

49.0~50.5

1J52

0.30~0.60

0.15~0.30

49.0~50.5

1.80~2.2

1J65

0.30~0.60

0.15~0.30

64.5~66.0

1J67

0.30~0.60

0.15~0.30

64.5~66.0

1.80~2.2

1J83

0.30~0.60

0.15~0.30

78.5~79.5

2.80~3.2

1J403

0.30~0.60

0.15~0.30

39.0~ 41.0

24.5~25.5

3.80~4.2

Mechanical Property (see Table 2)

Table 2 Mechanical Property

Grade	Resisitivity (μΩ•m )	Desinty (g/cm³)	Curie Point °C	High Saturated magnetostriction coefficient λθ/10^-6	Brinell hardness HBS		σb Tensile Strength MPa		σs Yield Strength MPa		Elongation (%)δ
Grade	Resisitivity (μΩ•m )	Desinty (g/cm³)	Curie Point °C	High Saturated magnetostriction coefficient λθ/10^-6	unan-nealed	an-nealed	unan-nealed	an-nealed	unan-nealed	an-nealed	unan-nealed	an-nealed
1J46	0.45	8.2	400	25	170	130	735		735		3
1J50	0.45	8.2	500	25	170	130	785	450	685	150	3	37
1J54	0.9	8.2	360	-	190	125	885	500	835	150	2	40
1J403	0.55	8.55	600	-	-	-	-	-	-	-	-	-
1J76	0.55	8.6	400	2.4	-	-	-	-	-	-	-	-
1J77	0.55	8.6	350	-	-	-	980	540	-	-	2	40
1J79	0.55	8.6	450	2	210	120	1030	560	980	150	3	50
1J80	0.62	8.5	330	0.5	240	130	930	560	885	150	4	40
1J85	0.56	8.75	400	0.5	-	-	-	-	-	-	-	-
1J86	0.60	8.85	-	-	-	-	-	-	-	-	-	-
1J34	0.5	8.7	-	-	-	-	-	540	-	-	-	42
1J51	0.45	8.2	500	-	-	-	-	450	-	-	-	37
1J52	-	8.2	-	-	-	-	-	-	-	-	-	-
1J65	0.25	8.35	600	-	-	-	-	540	-	-	-	43
1J67	0.45	8.48	530	-	-	-	930	540	-	-	3	50
1J83	0.50	8.6	460	-	-	-	1030	490	-	-	3	50

Physical Property (See Table 3 & Table 4)

Table 3 Average Coefficient of Linear Expansion

Grade	Coefficient of Linear Expansion at Different Temperature/(×10^-6/K)
Grade	20~ 100°C	20~ 200°C	20~ 300°C	20~ 400°C	20~ 500°C	20~ 600°C	20~ 700°C	20~ 800°C	20~ 900°C
1J50	8.9	9.27	9.2	9.2	9.4
1J79	10.3~10.8	10.9~11.2	11.4~12.9	11.9~12.5	12.3~13.2	12.7~13.4	13.1~13.6	13.4~13.6	13.2~13.7
1J80	12.8~13.0	12.5~12.7	13.1~13.4	13.4~13.8	13.9~14.4	14.2~14.8	14.5~15.2	15.0~15.6	15.5~15.6

Note:
1. Saturated magnetic induction, Bs, is measured under 2000~2400 A/m applied magnetism for 1J34, 1J51, 1J52 and 1J403. 800 A/m for 1J65, 1J67 and 1J83.
2. Iron loss P1/400 and P1/300 represent iron loss when peak magnetic induction reaches 1T at 400 Hz and 300 Hz, respectively.
3. Bm in Square coefficient Br/Bm represents magnetic induction strength under 80 A/m applied magnetic strength.

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