1J76, 1J77, 1J79, 1J80, 1J85, 1J86

Soft Magnetic Alloys with High Initial Permeability

Alloy

Equivalent Grades

GB	JIS	Trademark	UNS	DIN	NF	ГОСТ	BS
1J76	PC-2 PC-22	Mumetal Round Permalloy 80 HyMu 80 HyMu77	N14076	Mumetal Vacoperm	Mumetal Permimphy 1	76НХД	Mumetal M2, M2+ Supermumetal SM2
1J77	PC-2 PC-22	Mumetal Round Permalloy 80 HyMu 80 HyMu77	N14076	Mumetal Vacoperm	Mumetal Permimphy 1	77НМД	Mumetal M2, M2+ Supermumetal SM2
1J79	–	Supermalloy Square Permalloy 80 HyMu 80 Ⅱ HyRa 80	N14080	Ultraperm 10 Ultraperm 200 Ultraperm 300 Ultraperm F80 Ultraperm 200TK Ultraperm Z	Permimphy 2 Permimphy 5 Permimphy 6 Permimphy C	79Н	Supermumetal SM150, 250 Supermumetal SM300
1J80	–	–	–	–	–	80НХС	–
1J85	PC-80 PC-3	Super-permalloy Wacumate	–	–	–	–	–

Specification

GBn 198-88, ГОСТ 10994-1974, ГОСТ 10160-1975, ASTM A753-2008

Product Forms

Pipe, Tube, Sheet, Strip, Plate, Round Bar, Flat Bar, Forgings, Hexagon, Wire

Chemical Composition,%

Alloy	C	P	S	Si	Mn	Ni	Cu	Co	Cr	Fe
1J76	≤0.03	≤0.02	≤0.02	0.15-0.30	0.30-0.60	75.0-76.5	4.80-5.20	–	1.80-2.20	Rest
1J77	≤0.03	≤0.02	≤0.02	0.15-0.30	0.30-0.60	75.0-78.0	4.80-6.00	–	–	Rest
1J79	≤0.03	≤0.02	≤0.02	0.30-0.50	0.60-1.10	78.5-80.0	≤0.20	–	–	Rest
1J80	≤0.03	≤0.02	≤0.02	1.10-1.50	0.60-1.10	79.0-81.5	≤0.30	–	2.60-3.00	Rest
1J85	≤0.03	≤0.02	≤0.02	0.15-0.30	0.30-0.60	79.0-81.0	≤0.20	–	–	Rest
1.86	≤0.03	≤0.02	≤0.02	≤0.30	≤1.00	80.5-81.5	–	–	–	Rest

AC Magnetic Properties of Soft Magnetic alloys with High Permeability and Fairly High Saturation Magnetic Induction

Alloy	Type	Thickness, mm	Elastic permeability at different frequencies measured at the peak value of magnetic field intensity of 0.1 A/m, μm/mH˙m-1
Alloy	Type	Thickness, mm	60 Hz	400 Hz	1 kHz	10 kHz
1J79	Cold rolled strip	0.02	–	–	≥14000(17.5)	≥10000(12.5)
		0.05	–	–	≥15040(18.8)	≥7520(9.4)
		0.10	–	≥18000(22.5)	≥12000(15)	–
		0.20	–	≥10000(12.5)	≥6000(7.5)	–
		0.35	≥25	≥7040(8.8)	–	–
1J85	Cold rolled strip	0.02	–	–	≥16000(20)	≥12000(15)
		0.05	–	–	≥25040(31.3)	≥9040(11.3)
		0.10	–	≥25040(31.3)	≥20000(25)	–
		0.20	–	≥19040(23.8)	≥8000(10)	–
		0.35	≥38	≥10000(12.5)	–	–

DC Magnetic Properties of Soft Magnetic alloys with High Permeability and Fairly High Saturation Magnetic Induction

Alloy	Type	Class	Thickness, mm	Permeability at a magnetic field intensity of 0.4 A/m, μ0.4/mH˙m-1	Maximum permeability μm/mH˙m-1	Coercive force (under saturation magnetic induction) Hc/A˙m-1	Saturation magnetic induction Bs/T
1J76	Cold rolled strip		0.02-0.04	≥15040(18.8)	≥60000(75)	≤4.8	0.75
			0.05-0.09	≥18000(22.5)	≥100000(125)	≤3.2	0.75
			0.10-0.19	≥20000(25)	≥140000(175)	≤2.8	0.75
			0.20-0.50	≥25040(31.3)	≥180000(225)	≤1.4	0.75
1J77	Cold rolled strip		0.05-0.09	≥30000(37.5)	≥140000(175)	≤1.4	0.60
			0.10-0.19	≥40000(50)	≥180000(225)	≤2.0	0.60
			0.20-0.34	≥50000(62.5)	≥220000(275)	≤1.2	0.60
			0.35-0.50	≥60000(75)	≥250000(312.5)	≤1.0	0.60
1J79	Cold rolled strip	Ⅰ	0.02-0.04	≥16000(20)	≥90000(112.5)	≤4.0	0.75
			0.05-0.09	≥18000(22.5)	≥110000(137.5)	≤2.8	0.75
			0.10-0.19	≥20000(25)	≥130000(162.5)	≤2.0	0.75
			0.20-0.34	≥22400(28)	≥180000(225)	≤1.6	0.75
			0.35-1.00	≥24600(31)	≥200000(250)	≤1.2	0.75
			1.10-2.50	≥22400(28)	≥180000(225)	≤1.6	0.75
		Ⅱ	0.02-0.04	≥20000(25)	≥100000(125)	≤2.4	0.75
			0.05-0.09	≥20000(25)	≥120000(150)	≤1.6	0.75
			0.10-0.19	≥22400(28)	≥152000(190)	≤1.2	0.75
			0.20-0.34	≥24800(31)	≥200000(250)	≤1.2	0.75
			0.35-1.00	≥30400(38)	≥224000(280)	≤1.0	0.75
			1.10-2.50	≥24800(31)	≥184000(230)	≤1.2	0.75
		Ⅲ	0.02-0.04	≥24800(31)	≥152000(190)	≤1.6	0.73
			0.05-0.09	≥30400(38)	≥200000(250)	≤1.2	0.73
			0.10-0.19	≥30400(38)	≥200000(250)	≤1.2	0.73
			0.20-0.34	≥30400(38)	≥224000(280)	≤1.0	0.73
			0.35-	≥35200(44)	≥248000(310)	≤1.0	0.73
	Hot rolled flat		4.5-20.00	≥20000(25)	≥100000(125)	≤2.4	0.75
	Hot rolled rod		20.00-100.00	≥20000(25)	≥100000(125)	≤2.4	0.75
1J80	Cold rolled strip	Ⅰ	0.03-0.04	≥18400(23)	≥75040(93.8)	≤4.0	0.65
			0.05-0.09	≥20000(25)	≥90000(112.5)	≤3.2	0.65
			0.10-0.19	≥22400(28)	≥120000(150)	≤2.4	0.65
			0.20-0.34	≥28000(35)	≥140000(175)	≤1.6	0.65
			0.35-0.50	≥35200(44)	≥160000(200)	≤1.2	0.65
			0.50-1.00	≥35040(43)	≥160000(200)	≤1.0	0.65
			1.10-2.50	≥24800(31)	≥152000(190)	≤1.2	0.65
		Ⅱ	0.03-0.04	≥22400(28)	≥100000(125)	≤3.2	0.63
			0.05-0.09	≥30400(38)	≥152000(190)	≤1.6	0.63
			0.10-0.19	≥32000(40)	≥160000(200)	≤1.2	0.63
			0.20-0.34	≥35200(44)	≥160000(200)	≤1.2	0.63
			0.35-0.50	≥35200(44)	≥200000(250)	≤1.0	0.63
		Ⅲ	0.03-0.04	≥30400(38)	≥120000(150)	≤1.6	0.63
			0.05-0.09	≥40000(50)	≥200000(250)	≤1.0	0.63
			0.10-0.34	≥44800(56)	≥200000(250)	≤1.0	0.63
			0.35-0.50	≥50400(63)	≥248000(310)	≤0.8	0.63
	Hot rolled flat		4.50-20.00	≥22000(27.5)	≥80000(100)	≤2.4	0.65
	Hot rolled rod		20.00-100.00	≥22000(27.5)	≥80000(100)	≤2.4	0.65
1J85	Cold rolled strip	Ⅰ	0.03-0.04	≥18000(22.5)	≥80000(100)	≤3.6	0.70
			0.05-0.09	≥28000(35)	≥110000(137.5)	≤2.4	0.70
			0.10-0.19	≥30000(37.5)	≥150000(187.5)	≤1.6	0.70
			0.20-0.34	≥40000(50)	≥180000(225)	≤1.2	0.70
			0.35-1.00	≥50000(62.5)	≥250000(312.5)	≤0.8	0.70
			1.10-2.50	≥40000(50)	≥150000(187.5)	≤1.2	0.70
		Ⅱ	0.03-0.04	≥30000(37.5)	≥110000(137.5)	≤2.4	0.70
			0.05-0.09	≥40000(50)	≥140000(175)	≤1.6	0.70
			0.10-0.19	≥50000(62.5)	≥180000(225)	≤1.2	0.70
			0.20-0.34	≥60000(75)	≥200000(250)	≤1.0	0.70
			0.35-	≥55040(68.8)	≥260000(325)	≤0.7	0.70
	Hot rolled flat		4.50-20.00	≥30000(37.5)	≥100000(125)	≤1.6	0.70
	Hot rolled rod		20.00-100.00	≥30000(37.5)	≥100000(125)	≤1.6	0.70
1J86	Cold rolled strip		0.03-0.04	≥30000(37.5)	≥110000(137.5)	≤2.4	0.60
			0.05-0.09	≥40000(50)	≥150000(187.5)	≤1.4	0.60
			0.10-0.19	≥50000(62.5)	≥180000(225)	≤1.2	0.60
			0.20-0.34	≥60000(75)	≥220000(275)	≤0.7	0.60
			0.35-1.00	≥50000(62.5)	≥200000(250)	≤1.2	0.60

Note: Saturation magnetic induction Bs is measured at a magnetic field intensity of 800 A/m.

Feature

High or much higher initial permeability and maximum permeability, extremely low coercive force and fairly low saturation magnetic induction.

Application

High sensitive and small power transformers used in a weak magnetic field, magnetic amplifiers, relays reactors, magnetic heads of magnetic recording equipments, magnetic shielding, a variety of strip wound cores, and lamination cores, etcs.