GOST 81NMA Nickel Alloys

Material group: Nonferrous Alloys / Nickel Alloys
Country / Standard: Russia / GOST

Data updates

Latest Update: 2025-06
Total number of updates: 1
Update History

This material has 52 properties — only a subset is shown here.

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GOST 81NMA Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.01
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Fe
VALUE
Remainder
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mn
VALUE
≤ 0.35
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
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
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6

GOST 10994: 1974 / Precision alloys. Grades

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GOST 81NMA Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
185 — 210 GPa
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Electrical Resistivity
0.8 Ω∙mm²/m
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Density
7.9 — 8.8 kg/dm³
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Electrical Conductivity
val1
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S/m
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Poisson Coefficient
val1
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This material has 52 properties — only a subset is shown here.

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GOST 81NMA Heat Treatments

  • Annealing: medium - vacuum with residual pressure not more than 0.0001 mmHg; (1100±20)°C, not more than 500°C /h during 3 h; Cooling: Down to 600°C with rate not more than 200°C /h, from 600 to 400°C with rate not less than 400°C /h, from 400°C to not less than 100°C, optional cooling rate. For Class II wire annealing is (850±25)°C during 3 h, for Class III wire annealing is (1000±25)°C during 3 h.

GOST 81NMA Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
640 — 1270 MPa
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Brinell Hardness (HB)
160 — 230
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Elongation, A
≥ 2 %
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Yield Strength, Rp0.2
val1
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MPa
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  • -Cross References
  • 18Composition
  • 9Mechanical Properties
  • 18Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • 2Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • 4Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers