China Cheap price Alloy 718 Sheet - Mumetal Permalloy 80(1J79) Bar/ SHEET/strip – Sekonic

Product Detail

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China Cheap price Alloy 718 Sheet - Mumetal Permalloy 80(1J79) Bar/ SHEET/strip – Sekonic Detail:

Common Trade Names: Mumetal,UNS N14080, HY-MU80,Permalloy 80, 1J79, 79НМ,

Mumetal /Permalloy 80 is a highly magnetic nickel-molybdenum-iron alloy. with roughly 80% nickel and 15% iron and 5% molybdenum content. It’s useful as a magnetic core material in electrical and electronic equipment. Permalloy 80 provides high initial and maximum permeabilities with low coercive force, low hysteresis loss, low eddy-current losses, and low magnetostriction which is critical for industrial applications.

Applications:

• Transformer laminations • Relay • Recording Heads •Deflection and Focusing Yokes • Amplifiers •Loudspeakers •Shielding.

Grade

U.K.

Germany

U.S.A.

Russia

Standard

Mumetal

(1J79)

Mumetal

Permalloy 80

HY-MU80

79HM

ASTM A753-78

GBn 198-1988

Mumetal Chemical Composition

Grade	Chemical Composition (%)
	C	P	S	Cu	Mn	Si	Ni	Mo	Fe
Mumetal 1J79	≤
	0.03	0.020	0.020	0.20	0.60~1.1	0.30~0.50	78.5~80.0	3.80~4.10	Balance

Mumetal Physical Property

Grade

Resistivity (μΩ•m)

Density

(g/cm3)

Curie point °C

saturation magnetostriction constant (×10-2)

Tensile Strength/MPa

Yelid Strength/MPa

Mumetal

1J79

Unannealed

Annealed

Unannealed

Annealed

0.40

8.20

980

1030

560

980

150

Mumetal Avager Linear Expansion

Grade

Coefficient of Linear Expansion at Different Temperaturel(x 10-6/K)

20～100℃

20～ 200℃

20～ 300℃

20～400℃

20～ 500℃

20～ 600℃

20～ 700℃

20～ 800℃

20～ 900℃

Mumetal

1J79

10.3-10.8

10.9～ 11.2

11.4～ 12.9

11.9～ 12.5

12.3～ 13.2

12.7～ 13.4

13.1～ 13.6

13.4～ 13.6

13.2～ 13.7

Mumetal Shielding Potential

Permalloy has extremely high permeability and nominal coercive force that make it a suitable material for shielding operations. To achieve the desired shielding properties, HyMu 80 is annealed up to 1900oF or 1040oC subsequent to forming processes. Annealing at the elevated temperatures enhances the permeability and shielding properties.

Product detail pictures:

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