GB J14870 Magnetic materials

Material group: Nonferrous Alloys / Magnetic materials
Country / Standard: China / GB

Data updates

Latest Update: 2026-02
Total number of updates: 2
Update History
2026-01

This material has 33 properties — only a subset is shown here.

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GB J14870 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.03
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Fe
VALUE
Remainder
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mn
VALUE
0.30 – 0.60
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

GB/T 14986.2: 2025 / Soft magnetic alloys - Part 2: Nickel-iron alloys

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GB J14870 Physical Properties


Temperature

PROPERTY / VALUE
Electrical Resistivity
0.75 Ω∙mm²/m
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Density
8.75 kg/dm³
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Electrical Conductivity
val1
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S/m
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Melting Temperature
380 °C
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This material has 33 properties — only a subset is shown here.

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GB J14870 Heat Treatments



  • Heating temperature: 1050 - 1150°C;
    Holding time: 2 - 4h;
    Cooling method: Cool at a rate of 150 - 200°C/h to 600°C, then cool at a rate of 200 - 300°C/h to below 200°C, then remove from furnace.

GB J14870 Mechanical Properties


Temperature

PROPERTY / VALUE
Vickers Hardness (HV)
140 — 420
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GB J14870 International Equivalent Materials


Showing 5 of 5 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Identical
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Identical
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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  • 5Cross References

  • 9Composition
  • 2Mechanical Properties
  • 4Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep

  • -Joints
  • -Coatings
  • 12Dimensions
  • -Tribology

  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

  • -Total Suppliers