PROPRIETARY Nimonic alloy 81 Nickel Alloys

Material group: Nonferrous Alloys / Nickel Alloys

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2021-05

Total number of updates: 4

Update History

2021-01 2018-10 2014-05

This material has 293 properties — only a subset is shown here.

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PROPRIETARY Nimonic alloy 81 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

≤ 0.9

UNIT

CAS NUMBER

7429-90-5

CRITERIA

VALUE

≤ 0.003

UNIT

CAS NUMBER

7440-42-8

CRITERIA

VALUE

≤ 0.05

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-48-4

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-50-8

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-89-6

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-02-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-32-6

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-67-7

Special Metals Corporation, Product Data Sheets,

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PROPRIETARY Nimonic alloy 81 Physical Properties

Temperature

0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Modulus of Elasticity

185 — 205 GPa

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Electrical Resistivity

1.17 — 1.27 Ω∙mm²/m

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Thermal Conductivity

10.8 — 11.2 W/(m∙°C)

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Density

val1 kg/dm³

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Dynamic Modulus of Elasticity

val1 GPa

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Electrical Conductivity

val1 S/m

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Heat Capacity

val1 J/(kg∙°C)

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Melting Temperature

val1 °C

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Poisson Coefficient

val1

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Torsional Modulus

val1 GPa

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This material has 293 properties — only a subset is shown here.

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PROPRIETARY Nimonic alloy 81 Heat Treatments

It is normally used in the solution and precipitation-treated condition.
Extruded or forged bar and section for forging, rolling and /or machining: solution treatment - 8h/1100°C/ AC or WQ, aging treatment - 16h/700°C/AC.
Hot-rolled plate and sheet: solution treatment - approx. 0.5h/1100°C/AC or WQ, aging treatment - 16h/700°C/AC.
Cold-rolled sheet: solution treatment - 5-15min/1100°C/ FBQ or WQ, aging treatment - 16h/700°C/AC.

PROPRIETARY Nimonic alloy 81 Mechanical Properties

Temperature

0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Tensile Strength

897 — 1094 MPa

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Elongation, A

val1 %

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Reduction of Area

val1 %

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Shear Strength

val1 MPa

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Yield Strength, Rp0.2

val1 MPa

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Grain Size

val1

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Vickers Hardness (HV)

val1

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-Cross References

14Composition
90Mechanical Properties
134Physical Properties
1Heat Treatment
-Metallography
-Machinability

-Stress-Strain
-Formability
1Fatigue
-Fracture
2Creep

-Joints
-Coatings
-Dimensions
-Tribology

47Corrosion
-Ageing
-Weatherability
-Irradiation

4Total Suppliers