ASTM A904 50Ni-50Fe Magnetic and electrical materials

Material group: Ferrous Alloys / Magnetic and electrical materials
Country / Standard: United States / ASTM

Data updates

Latest Update: 2025-06
Total number of updates: 3
Update History
2021-01 2013-12

This material has 16 properties — only a subset is shown here.

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ASTM A904 50Ni-50Fe Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.02
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Fe
VALUE
Balance
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
N
VALUE
≤ 0.01
UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
O
VALUE
val1
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UNIT
%
CAS NUMBER
7782-44-7; 17778-80-2
CRITERIA
Other
VALUE
val1
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UNIT
%
CAS NUMBER

A904: 2026 / 50 Nickel-50 Iron Powder Metallurgy Soft Magnetic Parts

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ASTM A904 50Ni-50Fe Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
≥ 6.99 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 16 properties — only a subset is shown here.

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ASTM A904 50Ni-50Fe Heat Treatments


  • A general heat treatment to improve magnetic properties is as follows:
    Place parts in a sealed retort or equivalent, introduce a circulated dry hydrogen atmosphere having an entrance dew point of -51°C or lower, heat to a temperature of 1120 to 1180°C and hold for 4 h at temperature, cool to room temperature at a rate not to exceed 110°C/h.

ASTM A904 50Ni-50Fe International Equivalent Materials


Showing 2 of 2 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
MPIF
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
MPIF
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%

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  • 2Cross References

  • 6Composition
  • -Mechanical Properties
  • 7Physical Properties
  • 1Heat Treatment
  • -Metallography
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