High Permeability 49 | HB SPEICAL ALLOY

Soft Magnetic Alloys with High Permeability and Higher Saturation Magnetic Induction

1J46, 1J50, 1J54

This kind of alloy has high permeability and high saturation magnetic induction. It mainly produces iron cores of various transformers, relays and electromagnetic clutches working in medium magnetic field.

1J50 soft magnetic alloy has high saturation magnetic induction strength and low coercivity. In iron nickel soft magnetic alloy, it has low static permeability. The process performance of 1J50 soft magnetic alloy is relatively stable, creating a good condition for mass production of parts with consistent magnetic properties. It is applied in servo products, such as armature, upper and lower guide magnets, iron core and other parts. In the process of part processing, H2 protective atmosphere is usually used for annealing to obtain good magnetic properties, so as to meet the requirements of part design and use.

Equivalent Grades

GB	ГОСТ	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
1J46	45Н	High Permeability 45	K94490	Permenorm 5000 H2 Permenorm 5050 H2 Permenorm 5000 Z	–	Anhyster DS Superanhyster 50 Rectimply	Radiometal R4550 Radiometal SR HCR SR	PB-1 PB-2	–
1J50	50Н	High Permeability 49 HyRa 49	K94840	Permenorm 5000 H2 Permenorm 5050 H2 Permenorm 5000 Z	–	Anhyster DS Superanhyster 50 Rectimply	Radiometal R4550 Radiometal SR HCR SR	PB-1 PB-2	–

Chemical Composition, %

Alloy	C	P	S	Si	Mn	Ni	Cu	Co	Cr	Fe
1J46	≤0.03	≤0.02	≤0.02	0.15-0.30	0.60-1.10	45.0-46.5	≤0.20	–	–	Rest
1J50	≤0.03	≤0.02	≤0.02	0.15-0.30	0.30-0.60	49.0-50.5	≤0.20	–	–	Rest
1J54	≤0.03	≤0.02	≤0.02	1.10-1.40	0.60-1.10	49.5-51.0	≤0.20	–	3.80-4.20	Rest

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

Alloy	Type	Class	Thickness, mm	Elastic permeability at different frequencies measured at the peak value of magnetic field intensity of 0.4 A/m, μ1/mH˙m-1
Alloy	Type	Class	Thickness, mm	60 Hz	400 Hz	1 kHz	10 kHz
1J50	Cold rolled strip	Ⅱ	0.02	–	–	≥2000(2.5)	≥1600(2.0)
			0.05	–	–	≥2000(2.5)	≥1440(1.8)
			0.10	–	≥3120(3.9)	≥3040(3.8)	–
			0.20	–	≥3040(3.8)	≥2400(3.0)	–
			0.35	≥4000(5.0)	≥3040(3.8)	–	–

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 ≥
1J46	Cold rolled strip		0.03-0.04	≥1280(1.6)	≥18000(22.5)	≤32	1.5
			0.05-0.09	≥1600(2.0)	≥22000(27.5)	≤24	1.5
			0.10-0.19	≥2000(2.5)	≥25040(31.3)	≤20	1.5
			0.20-0.34	≥2480(3.1)	≥30000(37.5)	≤16	1.5
			0.35-2.50	≥2800(3.5)	≥36000(45.0)	≤12	1.5
	Hot rolled flat		4.5-20	≥2000(2.5)	≥25040(31.3)	≤16	1.5
	Hot rolled rod		20-100	≥2000(2.5)	≥25040(31.3)	≤16	1.5
1J50	Cold rolled strip	Ⅰ	0.05-0.09	≥2000(2.5)	≥28000(35)	≤20	1.5
			0.10-0.19	≥2320(2.9)	≥32000(40)	≤14.4	1.5
			0.20-0.34	≥2640(3.3)	≥40000(50)	≤11.2	1.5
			0.35-0.50	≥3040(3.8)	≥50000(62.5)	≤9.6	1.5
			0.51-1.00	≥3040(3.8)	≥50000(62.5)	≤9.6	1.5
			1.10-2.50	≥2800(3.5)	≥45040(56.3)	≤9.6	1.5
		Ⅱ	0.10-0.19	≥3040(3.8)	≥35040(43.8)	≤12	1.5
			0.20-0.34	≥3520(4.4)	≥45050(56.3)	≤10.4	1.5
			0.35-0.50	≥4000(5.0)	≥52000(65)	≤8.8	1.5
			0.51-1.00	≥4000(5.0)	≥40000(50)	≤10	1.5
			1.10-2.50	≥3040(3.8)	≥35200(44)	≤12	1.5
		Ⅲ	0.05-0.20	≥10000(12.5)	≥60000(75)	≤4.8	1.52
	Hot rolled flat		4.5-20	≥2480(3.1)	≥25040(31.3)	≤14.4	1.5
	Hot rolled rod		20-100	≥2480(3.1)	≥25040(31.3)	≤14.4	1.5
1J54	Cold rolled strip	Ⅰ	0.03-0.04	≥1520(1.9)	≥16000(20)	≤20	1.0
			0.05-0.09	≥2000(2.5)	≥20000(25)	≤16	1.0
			0.10-0.19	≥2480(3.1)	≥25040(31.3)	≤12	1.0
			0.20-0.34	≥3040(3.8)	≥28000(35)	≤9.6	1.0
			0.35-0.50	≥3200(4.0)	≥32000(40)	≤8	1.0
			0.51-1.00	≥3040(3.8)	≥32000(40)	≤8	1.0
		Ⅱ	0.03-0.04	≥3040(3.8)	≥24800(31)	≤12	1.0
			0.05-0.09	≥3040(3.8)	≥24800(31)	≤12	1.0
			0.10-0.19	≥3120(3.9)	≥28000(35)	≤10	1.0
			0.20-0.34	≥3120(3.9)	≥30000(37.5)	≤10	1.0
			0.35-0.50	≥3520(4.4)	≥35200(44)	≤8	1.0

Note: Saturation magnetic induction Bs is measured at a magnetic field intensity between 2000A/m and 24000A/m.

Typical Physical Constants and Mechanical Properties

Alloy	Density, g/cm3	Curie Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	Elongation, %
1J46	8.2	400	735 Hard	735 Hard	3 Hard
1J50	8.2	500	785 Hard / 450 Soft	685 Hard / 150 Soft	3 Hard / 37 Soft
1J54	8.2	360	885 Hard / 500 Soft	835 Hard / 150 Soft	2 Hard / 40 Soft

Available Products and Specifications

Rod, Bar, Wire and Forgings	GBn 198-88, GB/T 32286.1-2015, GOST 10160-1975, GOST 10994-1974, ASTM A753-2008
Plate, Sheet and Strip	GBn 198-88, GB/T 32286.1-2015, GOST 10160-1975, GOST 10994-1974, ASTM A753-2008
Pipe and Tube	GBn 198-88, GB/T 32286.1-2015, GOST 10160-1975, GOST 10994-1974, ASTM A753-2008
Welding Product	–
Others	–

Features

Fairly high saturation magnetic induction and permeability.

Applications

Cores of various transformers, relays, electromagnetic clutches and reactors in medium magnetic field, pole shoes, relay components of earth leakage breakers, gas safety valves, magnetic shielding, gyroscopes, automatic synchronous motors and mini size motors etcs.