Chemical Composition Base Element Ni (Nickel) Fe (Iron) 21.1 % Mn (Manganese) 0.3 % Ni (Nickel) 78.5 % Balance [none specified] Mechanical Properties Yield Strength 2.15e6 lbf/ft^2 Ultimate Tensile Strength 1.08e7 lbf/ft^2 Elongation 35 % strain Brinell Hardness 115 Other Information Material Class Nonferrous Alloy Alloy Family Nickel Alloy Group Nickel with Chromium and/or Iron, Molybdenum Country USA Description Sheet: 75,000 TS; 15,000 YS; 35 El; 115 HB; Initial permeability 8000; max permeability 100,000; 0.05 Hc. For sensitive D.C. apparatus, relays; high permeability. Designation PERMALLOY 78 Specification Type Manufacturer's Specification Specification Status Obsolete Source Woldman's Engineering Alloys 9th ed. J. Frick Editor, ASM International 2000 Available forms Sheet Similar Alloys Click here to find similar alloys Links Organizations Bell Telephone Laboratories
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Chemical Composition

Base Element

Ni (Nickel)

Fe (Iron)

21.1

Mn (Manganese)

0.3

Ni (Nickel)

78.5

Balance

[none specified]

Mechanical Properties

Yield Strength

2.15e6

lbf/ft^2

Ultimate Tensile Strength

1.08e7

lbf/ft^2

Elongation

% strain

Brinell Hardness

115

Other Information

Material Class

Nonferrous Alloy

Alloy Family

Nickel

Alloy Group

Nickel with Chromium and/or Iron, Molybdenum

Country

USA

Description

Sheet: 75,000 TS; 15,000 YS; 35 El; 115 HB; Initial permeability 8000; max permeability 100,000; 0.05 Hc. For sensitive D.C. apparatus, relays; high permeability.

Designation

PERMALLOY 78

Specification Type

Manufacturer's Specification

Specification Status

Obsolete

Source

Woldman's Engineering Alloys 9th ed. J. Frick Editor, ASM International 2000

Available forms

Sheet

Similar Alloys

Click here to find similar alloys

Links

Organizations

Bell Telephone Laboratories

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