Leading Factory of Permalloy 80 1J85 Ni80Mo5 Soft Magnetic Iron

1J85 (Soft magnetic alloy) (Common Name: Ni80Mo5, E11c, permalloy, 79HMA, PCS) 1J85 is a nickel–iron magnetic alloy, with about 80% nickel and 20% iron content. Invented in 1914 by physicist Gustav Elmen at Bell Telephone Laboratories, it is notable for its very high magnetic permeability, which makes it useful as a magnetic core material in electrical and electronic equipment, and also in magnetic shielding to block magnetic fields. Commercial permalloy alloys typically have relative permeability of around 100,000, compared to several thousand for ordinary steel. In addition to high permeability, its other magnetic properties are low coercivity, near zero magnetostriction, and significant anisotropic magnetoresistance. The low magnetostriction is critical for industrial applications, allowing it to be used in thin films where variable stresses would otherwise cause a ruinously large variation in magnetic properties. Permalloy's electrical resistivity can vary as much as 5% depending on the strength and the direction of an applied magnetic field. Permalloys typically have the face centered cubic crystal structure with a lattice constant of approximately 0.355 nm in the vicinity of a nickel concentration of 80%. A disadvantage of permalloy is that it is not very ductile or workable, so applications requiring elaborate shapes, such as magnetic shields, are made of other high permeability alloys such as mu metal. Permalloy is used in transformer laminations and magnetic recording heads. 1J85idely used in radio-electronic industry, precision instruments, remote control and automatic control system. Normal composition%

Ni	79.0~81.0	Fe	Bal.	Mn	0.3~0.6	Si	0.15~0.3
Mo	4.8~5.2	Cu	≤0.2
C	≤0.03	P	≤0.02	S	≤0.02

Typical Mechanical properties

Yield strength	Tensile Strength	Elongation
Mpa	Mpa	%
980	1030	3~50

Typical Physical properties

Density (g/cm3)	8.75
Electrical resistivity at 20℃(Ωmm²/m)	0.56
Coefficient of linear expansion（20℃~200℃）X10^-6/℃	10.9~11.2
Saturation magnetostriction coefficient λ_θ/ 10^-6	0,5
Curie point T_c/ ℃	400

The magnetic properties of alloys with high permeability in weak fields
1J85	Initial permeability	Maximum permeability			Coercivity	Saturation magnetic induction intensity
Сold-rolled strip/ sheet. Thickness, mm	μ_0.08/ (mH/m)		μ_m/ (mH/m)	Hc/ (A/m)			B_S/ 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	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

Mode of heat treatment 1J85
Annealing media	Vacuum with a residual pressure not higher than 0.1Pa, hydrogen with a dew point of not higher than minus 40 ℃.
The heating temperature and rate	1100~1200℃
Holding time/h	3~6
Cooling rate	With 100 ~ 200 ℃/ h cooled to 500~600 ℃, not less than 400℃/h cooled to 300℃

Style of supply

Alloys Name	Type	Dimension
1J85	Wire	D= 0.1~8mm
	Strip	W= 8~390mm	T= 0.3mm
	Foil	W= 10~100mm	T= 0.01~0.1
	Bar	Dia= 8~100mm	L= 50~1000

Soft magnetic alloy Series: 1J22 1J50 1J79 1J85Shijiazhuang 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.

* OEM manufacturer * We will deliver the goods to the warehouse of the customer's agent in any city in China. * Terms of delivery: EXW, FCA, FOB, CIF, CPT, DAP * Mode of transport: Sea, Auto, Railway, Air and Express * Payment terms: Bank Transfer, Western Union, PayPal, Alipay * Quality Certificate: In order to improve the quality of products and services, with each order we provide a quality certificate for goods, which includes measured data - chemical composition, electrical resistivity, tensile strength, elongation, melting number, etc. Cheng Yuan Alloy Material Co., Ltd Email: [email protected] Tel .: +86 13673186216 +86 311 8803 3197