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Soft Magnetic Alloys

PRODUCTS：Fe-Ni Soft Magnetic Alloy
GRADE：1J46、1J50、1J79、1J80、1J85
PRODUCTION STANDARD：GBn198-88
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PRODUCTS DETAILS
SPECIFICATION

Permalloy is a highly magnetic nickel-molybdenum-iron alloy, with roughly 80% nickel and 15% iron and 5% molybdenum content. It's useful as a magnetic core material in electrical and electronic equipment. Commercial permalloy alloys typically have relative permeability of around 100,000, compared to several thousand for ordinary steel. If provide maximum magnetic permeabilities and minimal core losses at low field strengths. This vacuum-melted product also offers the advantages of small size and weight in magnetic core and shielding materials for the applications shown below. Other magnetic properties are near zero magnetostriction, and significant anisotropic magnetoresistance.

Permalloy provides high initial and maximum permeabilities with low coercive force, low hysteresis loss, low eddy-current losses, and low magnetostriction which is critical for industrial applications, allowing it to be used in thin films where variable stresses would otherwise cause a large destructive variation in magnetic properties. Typical applications for this material are:

· Transformer laminations

· Relays

· Recording Heads

· Deflection and Focusing Yokes

· Amplifiers

· Loudspeakers

· Shielding

Fe-Ni Soft Magnetic Alloy （GBn198-1988）

Contrast

Sort	Grade	Composition	International Similar Grade
Sort	Grade	Composition	IEC	Russia	U.S.A.	Japan
High initial permeability of soft magnetic alloy	1J76	Ni76Cr2Cu5	E11a	76НХД	Mumeta 4-79 Permalloy Supermalloy	PC
	1J77	Ni77Mo4Cu5	E11b	77НХД		PC
	1J79	Ni79Mo4	E11c	79НМ		PC
	1J80	Ni80Cr3Si	-	80НХС		-
	1J85	Ni80Mo5	E11c	79НМА		PCS
	1J86	Ni81Mo6	-			6-81 Mo-Permalloy
High magnetic conductivity higher saturation magnetic flux density soft magnetic alloy	1J46	Ni46	E11e	46Н	45-Permalloy	PB
	1J50	Ni50	E11a	50Н	Hy-Ra49 Permalloy	PB
	1J54	Ni50Cr14Si		50НХС	Hy-Ra49 Permalloy	-
Moment magnetic alloy	1J34	Ni34Co29Mo3	E32a	34НКМП 50нП 65нП 65нм 80нм	Mo-Permiver Deltamax 65-Permalloy Dynamax	PE
	1J51	Ni50
	1J52	Ni50Mo2
	1J65	Ni65
	1J67	Ni65Mo2
	1J83	Ni80Mo3

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 /℃	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 /℃		unannealed	annealed	unannealed	annealed	unannealed	annealed	unannealed	annealed
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℃	20～ 200℃	20～ 300℃	20～ 400℃	20～ 500℃	20～ 600℃	20～ 700℃	20～ 800℃	20～ 900℃
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

Table 4 Magnetic Property

Grade	Sorts	Destiction	(δ & D)/mm	μ0.08/(mH/m)	μm/(mH/m)	Bs/T	Hc/(A/m)
Grade	Sorts	Destiction	(δ & D)/mm	≥			≤
1J77	Cold Rolling Strip	-	0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.50	18.8 22.5 25.0 31.3	75.0 125.0 175.0 225.0	0.75 0.75 0.75 0.75	4.8 3.2 2.8 1.4
1J76	Cold Rolling Strip	-	0.05-0.09 0.10-0.19 0.20-0.34 0.35-0.50	37.5 50.0 62.5 75.0	175.0 225.0 275.0 312.5	0.60 0.60 0.60 0.60	2.0 1.2 0.1 0.8
1J79	Cold Rolling Strip	I	0.005 0.01 0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35-1.00 1.10-2.50 2.50-3.00	12.5 17.5 20.0 22.5 25.0 28.0 30.0 27.5 26.3	44.0 87.5 112.5 137.5 162.5 225.0 250.0 225.0 187.5	0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75	6.4 4.8 4.0 2.8 2.0 1.6 1.2 1.6 2.0
		II	0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35	22.5 25.0 27.5 31.3 32.5	125.0 150.0 187.5 250.0 275.0	0.75 0.75 0.75 0.75 0.75	2.4 2.0 1.6 1.2 0.96
		III	0.01 0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35	25.0 31.0 38.0 38.0 38.0 44.0	150.0 190.0 250.0 250.0 280.0 310.0	0.73 0.73 0.73 0.73 0.73 0.73	2.4 1.6 1.2 1.2 1.0 1.0
	Hot Rolling(Forging)Flastspring		3-22	25.0	125.0	0.75	2.4
	Hot Rolling(Forging) Bar		8-100	25.0	125.0	0.75	2.4
1J80	Cold Rolling Strip	I	0.005-0.01 0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35-1.00 1.10-2.50	17.5 22.5 25.0 27.5 35.0 43.8 31.3	75.0 93.8 112.5 150.0 175.0 200.0 187.5	0.65 0.65 0.65 0.65 0.65 0.65 0.65	4.8 4.0 3.2 2.4 0.6 0.96 1.2
		II	0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35-0.50	28.0 38.0 40.0 44.0 44.0	125.0 190.0 200.0 200.0 250.0	0.63 0.63 0.63 0.63 0.63	3.2 1.6 1.2 1.2 1.0
		III	0.01 0.02-0.04 0.05-0.09 0.10-0.34 0.35-0.50	31.0 38.0 50.0 56.0 63.0	110.0 150.0 25.0 250.0 310.0	0.63 0.63 0.63 0.63 0.63	3.2 1.6 1.0 1.0 0.8
	Hot Rolling(Forging)Flastspring	-	3-22	27.5	100.0	0.65	2.4
	Hot Rolling(Forging) Bar	-	8-100	27.5	100.0	0.65	2.4
1J85	Cold Rolling Strip	I	0.005-0.01 0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35-1.00 1.10-2.50 2.51-3.00	20.0 22.5 35.0 37.5 50.0 62.5 50.0 43.8	87.5 100.0 137.5 187.5 225.0 312.5 187.5 150.0	0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70	4.8 3.6 2.4 1.6 1.2 0.8 1.2 1.44
	Cold Rolling Strip	II	0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35	37.5 50.0 62.5 75.0 68.8	137.5 175.0 225.0 250.0 325.0	0.70 0.70 0.70 0.70 0.70	2.4 1.6 1.2 1.0 0.7
	Hot Rolling(Forging)Flastspring	-	3-22	37.5	125.0	0.70	1.6
	Hot Rolling(Forging) Bar	-	8-100	37.5	125.0	0.70	1.6
1J86	Cold Rolling Strip	-	0.005-0.01 0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35-1.00	12.5 37.5 50.0 62.5 75.0 62.5	100.0 137.5 187.5 225.0 275.0 250.0	0.60 0.60 0.60 0.60 0.60 0.60	4.0 2.4 1.4 1.2 0.7 1.2

Grade	Sorts	Distiction	(δ & D)/mm	μ0.4/(mH/m)	μm/(mH/m)	Bs/T	Hc/(A/m)
Grade	Sorts	Distiction	(δ & D)/mm	≥			≤
1J46	Cold Rolling Strip	-	0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35-2.50	1.6 2.0 2.5 3.1 3.5	22.5 27.5 31.3 37.5 45.0	1.5 1.5 1.5 1.5 1.5	32.0 24.0 20.0 16.0 12.0
	Hot Rolling(forging) flatspring	-	3.0-22	2.5	31.3	1.5	16.0
	Hot Rolling(forging) Bar	-	8.0-100	2.5	31.3	1.5	16.0
1J50	Cold Rolling Strip	I	0.05-0.09 0.10-0.19 0.20-0.34 0.35-0.50 0.50-1.00 1.10-2.50	2.5 2.9 3.3 3.8 3.8 3.5	35.0 40.0 50.0 62.5 62.5 56.3	1.50 1.50 1.50 1.50 1.50 1.50	20.0 14.4 11.2 9.6 9.6 9.6
		II	0.10-0.19 0.20-0.34 0.35-0.50 0.51-1.00 1.10-2.50	3.8 4.4 5.0 5.0 3.8	43.8 56.3 65.0 50.0 44.0	1.50 1.50 1.50 1.50 1.50	12.0 10.4 8.8 10.0 12.0
		III	0.05-0.20	12.5	75.0	1.52	4.8
	Hot Rolling(forging) flatspring	-	3-22	3.1	31.3	1.50	14.4
	Hot Rolling(forging) Bar	-	8-100	3.1	31.3	1.50	14.4
1J54	Cold Rolling Strip	I	0.005 0.01 0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35-0.50 0.51-1.00	1.25 1.60 1.9 2.5 3.1 3.8 4.0 3.8	10.0 12.5 20.0 25.0 31.3 35.0 40.0 40.0	1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00	56.0 40.0 20.0 16.0 12.0 9.6 8.0 8.0
	Cold Rolling Strip	II	0.02-0.04 0.05-0.09 0.10-0.19 0.20-0.34 0.35-0.50	31.0 31.0 36.0 37.5 4.4	31.0 31.0 36.0 37.5 44.0	1.00 1.00 1.00 1.00 1.00	12.0 12.0 10.0 10.0 8.0
	Hot Rolling(forging) flatspring	-	3-22	2.0	20.0	1.00	20.0
	Hot Rolling(forging) Bar	-	8-100	2.0	20.0	1.0	20.0

Grade

δ/mm

μ0.8/(mH/m)

μm/(mH/m)

Bs/T

Br/Bm

Hc(mH/m)

P1.0/400(W/kg)

≥

≤

1J34

0.005-0.01

0.02-0.04

0.05-0.09

0.10-0.20

62.5

75.0

112.5

137.5

1.5

0.90

0.87

20.0

16.0

9.6

8.0

1J51

0.005-0.01

0.02-0.04

0.05-0.09

0.10

31.3

43.8

62.5

75.0

1.5

0.90

24.0

20.0

16.0

14.4

4.0

4.5

5.0

1J52

0.02-0.04

0.05-0.10

62.5

87.5

1.4

0.90

20.0

16.0

1J65

0.005-0.01

0.02-0.04

0.05-0.09

0.10-0.50

100.0

125.0

187.5

275.0

1.3

0.90

0.87

8.0

6.4

4.8

3.2

1J67

0.02-0.04

0.05-0.09

0.10-0.19

0.20-0.50

200.0

250.0

312.5

437.5

1.2

0.90

6.4

4.8

4.0

3.2

1J83

0.005-0.01

0.02-0.04

0.05-0.09

0.10

8.8

62.5

125.0

187.5

225.0

0.82

0.80

5.6

4.0

2.4

1.6

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

and1J83.

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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