Iron-Nickel Soft Magnetic Alloys 1J50: Leading Factory for Ni50 Feni50 Permalloy & Supermalloy

Soft magnetic alloys are a class of alloys with high permeability and low coercivity in weak magnetic fields. These alloys are widely used in the radio electronics industry, precision instruments, remote control and automatic control systems.
Iron-nickel alloys are iron-nickel alloys with a nickel content of 30% to 90%, often called permalloys. Within this composition range, by adding an appropriate amount of alloying elements and adopting appropriate processes, soft magnetic alloys with different magnetic properties such as high magnetic permeability, constant magnetic permeability, and constant-torque magnetism can be obtained. Permalloy has high plasticity and can be cold rolled into ultra-thin strips of 1 μm. It is a type of soft magnetic alloy that is widely used. It can be used as iron core and magnetic shielding in weak magnetic field, pulse transformer and inductor core with low remanence and constant magnetic permeability, high squareness ratio alloy, thermomagnetic compensation alloy and magnetostrictive alloy, etc. . The disadvantage is that the price is high, and the loss is large when used in the ultra-high frequency magnetic field. Popular products are
Hyperm52, Permalloy, Supermalloy

Chemical composition%

Alloy grade	Ni	Fe	Si	Mn	Cu	S	P	C	Mo
Ni50	49.0~51.0	Bal.	0.15~0.3	0.3~0.6	≤0.2	≤0.02	≤0.02	≤0.03	-
Ni79Mo4	78.5~80.0	Bal.	≤1.0	0.6~1.1	≤0.2	≤0.02	≤0.02	≤0.03	3.8~4.1
Ni80Mo5	79.0~81.0	Bal.	≤1.5	0.3~0.6	≤0.2	≤0.02	≤0.02	≤0.03	4.8~5.2

Mechanical properties

Alloy grade	Yield strength	Tensile Strength	Elongation	Density	Resistivity at 20℃	Linear expansion coefficient (20℃~200℃)	Saturation magnetostriction coefficient	Curie point
	Mpa	Mpa	%	(g/cm³)	Ωmm²/m	X10^-6/℃	λ_θ/ 10^-6	T_c/ ℃
50H	685	780	3-35	8.2	0.45	9.2	25	500
79HM	980	1030	3~50	8.6	0.55	10.3~11.5	2.0	450
79HMA	980	1030	3~50	8.75	0.56	10.9~11.2	0.5	400

50H Material magnetic properties

50H	Initial permeability	Maximum permeability	Coercivity	Saturation magnetic induction
Cold rolled strip/plate Thickness, mm	μ0.08/ (mH/m)	μm/ (mH/m)	Hc/ (A/m)	BS/ T
Cold rolled strip/plate Thickness, mm	≥		≤	BS/ T
0.05 mm	2.5	35	20	1.5
0.1~0.19 mm	3.8	43.8	12
0.2~0.34 mm	4.4	56.3	10.4
0.35~1.0 mm	5.0	65	8.8
1.1~2.5 mm	3.8	44.0	12
Bar
8-100 mm	3.1	25.0	24

79HM Material magnetic properties

79HM	Initial permeability	Maximum permeability			Coercivity	Saturation magnetic induction
Cold rolled strip/plate Thickness, mm	μ0.08/ (mH/m)		μm/ (mH/m)	Hc/ (A/m)		BS/ T
	≥			≤
0.01 mm	17.5		87.5	5.6		0.75
0.1~0.19 mm	25.0		162.5	2.4
0.2~0.34 mm	28.0		225.0	1.6
0.35~1.0 mm	30.0		250.0	1.6
1.1~2.5 mm	27.5		225.0	1.6
2.6~3.0 mm	26.3		187.5	2.0
Cold drawn wire
0.1 mm	6.3		50	6.4
Bar
8-100 mm	25		100	3.2

79HMA Material magnetic properties

79HMA	Initial permeability	Maximum permeability	Coercivity	Saturation magnetic induction
Cold rolled strip/plate Thickness, mm	μ0.08/ (mH/m)	μm/ (mH/m)	Hc/ (A/m)	BS/ T
Cold rolled strip/plate Thickness, mm	≥		≤	BS/ T
0.01 mm	20	87.5	4.8	0.75
0.1~0.19 mm	37.5	187.5	1.6
0.2~0.34 mm	50	225.0	1.2
0.35~1.0 mm	62.5	312.5	0.8
1.1~2.5 mm	50	187.5	1.2
2.6~3.0 mm	43.8	150	1.44
Cold drawn wire
0.1 mm	8.7	37.6	6.4
Bar
8-100 mm	37.5	125	1.6

Supply form and specification

Form	Specification
Wire	Diameter=0.025mm~8mm
Flat wire	Width=0.4~40mm	Thick=0.03~2.9mm
Strip	width=5~250mm	ThickT=0.02~3.0mm
Foil	width=6~120mm	Thick=0.003~0.1mm
Bar	Diameter=8~100mm	Long=50~1000

50H (soft magnetic alloy)(Common Name: 1J50, E11a, Ni50, Hy-Ra49, PB) 50H is a nickel-iron soft magnetic alloy, the main component is composed of about 50% Ni and 48% fe and other trace elements. It has the characteristics of high permeability and high saturation magnetic induction. The 50H alloy is smelted in a vacuum induction furnace. After being cast into ingots, it is hot forged into slabs. After hot rolling, pickling, and surface finishing, it is cold rolled into finished strips, or forged into required bars. Most of these alloys are used in alternating magnetic fields, mainly used for high-conductivity yokes, sensitive relays, low-loss micromotors, low-power power transformers, pulse transformers, transistor switches, magnetic amplifiers, magnetic modulators, and sensitive signals. Input and output transformers, magnetic sensors of aviation magnetic heading instruments, magnetic sensitive elements in magnetic measuring instruments, moving plates and stationary plates in precision electricity meters, magnetic shielding and magnetic temperature compensation components.

50H Heat treatment method
Annealing medium	Dry hydrogen (the dew point is not higher than -40℃) or vacuum, the residual pressure is not more than 0.1Pa
Heating temperature and speed	1100~1150℃
Holding time/h	3~6
Cooling rate	Cool to 600°C at a rate of 100 ~ 200°C/h, and then quickly cool to 300°C for release

79HM(soft magnetic alloy)(Similar grades: 1J79, E11c, malloy, permalloy, Ni79Mo4) 79HMPermalloy refers to an iron-nickel alloy with a wide range of nickel content, between 35% and 90%. The biggest feature of permalloy is its high weak magnetic field permeability. Their saturation magnetic induction is generally between 0.6--1.0T. The 79HMalloy is smelted in a vacuum induction furnace, and is made into cold-rolled strip, cold-drawn wire or hot-rolled (forged) sheet and bar through hot-cold plastic deformation. In the aviation industry and other electronic industries, it is used to make electronic components with high sensitivity, precise size, small volume, low high frequency loss, good time and temperature stability, and special functions. It is widely used in communication, instrumentation, electronic computer, telemetry, remote control, wireless charging and other systems.

79HM Heat treatment method
Annealing medium	Dry hydrogen (the dew point is not higher than -40℃) or vacuum, the residual pressure is not more than 0.1Pa
Heating temperature and speed	1100~1150℃
Holding time/h	3~6
Cooling rate	Cool to 600°C at a rate of 100 ~ 200°C/h, and then quickly cool to 300°C for release

79HMA (soft magnetic alloy-permalloy)(Similar grades: 1J85, E11c, permalloy, Ni80Mo5, PCS) 79HMA Permalloy refers to an iron-nickel alloy with a wide range of nickel content, ranging from 35% to 90%. The biggest feature of permalloy is its high weak magnetic field permeability. Their saturation magnetic induction is generally between 0.6--1.0T. 79HMA is a commonly used iron-nickel soft magnetic alloy, generally known as permalloy. It is the transliteration of English Permalloy, which means magnetic alloy. Soft magnetic alloys are a class of alloys with high permeability and low coercivity in weak magnetic fields, with high or extremely high initial permeability and large amount of permeability, and extremely low coercivity. Lower saturation magnetic induction. These alloys are widely used in radio electronics industry, precision instrumentation, remote control and automatic control systems, mainly for energy conversion and information processing.

79HMA Heat treatment method
Annealing medium	Dry hydrogen (the dew point is not higher than -40℃) or vacuum, the residual pressure is not more than 0.1Pa
Heating temperature and speed	1100~1200℃
Holding time/h	3~6
Cooling rate	Cool down to 600°C at a rate of 100 ~ 200 ℃/h, then cool to 300°C at a rate of no less than 400°C/h

Shijiazhuang Chengyuan Alloy Material Co., Ltd. is a high-tech enterprise specializing in the production of various alloy materials. It has an advanced and complete production line, including material smelting, surface cleaning, rolling, slitting, and a complete test process. Meet the corresponding quality inspection of different products. The company focuses on the production and supply of various electric heating alloys, expansion alloys, soft magnetic alloys, elastic alloys, high temperature alloys and all kinds of pure metals. The product forms include wire, flat wire, strip, plate, bar, foil, Seamless pipe, wire mesh, powder, etc. can meet the application needs of different customers. The various performance indicators of the product are strictly in accordance with the national standards. If customers put forward non-standard requirements, they can also be implemented by reference. Our products are widely used in heating equipment, machinery manufacturing, electric furnace production, instrumentation, household appliances, mineral mining, aerospace, petroleum and nuclear power and other industries, and have received good market feedback. Our products have stable delivery time, excellent quality, sophisticated packaging, and high repurchase rate. They are not only widely recognized in the domestic market, but also have a good reputation in the international market.

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