Permalloy 80 - HB SPEICAL ALLOY

Soft Magnetic Alloys with High Initial Permeability

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

This kind of iron nickel alloy with high permeability has high initial permeability. Make all kinds of transformer iron core, transformer, magnetic amplifier, choke iron core and magnetic shield working in weak magnetic field.

1J79 is an alloy with high initial permeability, which is second only to silicon steel sheet and electrical pure iron. Compared with other soft magnetic alloys, these alloys have high permeability and low coercivity in low magnetic field. Some alloys also have rectangular hysteresis loop, or low residual magnetic induction intensity and constant permeability.

1J79 alloy has good rust resistance and processing performance, and can make components with extremely precise shape and size. Because the resistivity of this kind of alloy is higher than that of pure iron and silicon steel sheet, and it is easy to be processed into thin strips, even ultra-thin strips below a few microns, which are suitable for high frequencies below a few MHz.

Equivalent Grades

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

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
			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.

Available Products and Specifications

Rod, Bar, Wire and Forgings	GBn 198-88, YB/T 086-2013, ГОСТ 10994-1974, ГОСТ 10160-1975, ASTM A753-2008
Plate, Sheet and Strip	GBn 198-88, YB/T 086-2013, ГОСТ 10994-1974, ГОСТ 10160-1975, ASTM A753-2008
Pipe and Tube	GBn 198-88, YB/T 086-2013, ГОСТ 10994-1974, ГОСТ 10160-1975, ASTM A753-2008
Welding Product	–
Others	–

Features

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

Applications

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.