PROPRIETARY INCONEL alloy 740H Nickel Alloys

Material group: Nonferrous Alloys / Nickel Alloys

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2021-05

Total number of updates: 3

Update History

2018-08 2016-08

This material has 171 properties — only a subset is shown here.

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PROPRIETARY INCONEL alloy 740H Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.2 – 2.0

UNIT

CAS NUMBER

7429-90-5

CRITERIA

VALUE

0.0006 – 0.006

UNIT

CAS NUMBER

7440-42-8

CRITERIA

VALUE

0.005 – 0.08

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

Nb+Ta

VALUE

val1

UNIT

CAS NUMBER

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-02-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7723-14-0

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

Special Metals Corporation, Product Data Sheets,

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PROPRIETARY INCONEL alloy 740H Physical Properties

Temperature

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

PROPERTY / VALUE

Modulus of Elasticity

185 — 221 GPa

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Thermal Conductivity

val1 W/(m∙°C)

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Electrical Resistivity

val1 Ω∙mm²/m

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Density

val1 kg/dm³

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Heat Capacity

val1 J/(kg∙°C)

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Electrical Conductivity

val1 S/m

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Melting Temperature

val1 °C

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Poisson Coefficient

val1

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This material has 171 properties — only a subset is shown here.

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PROPRIETARY INCONEL alloy 740H Heat Treatments

Solution annealed at 1120°C (2050°F)/WQ; Aged at 800°C(1472°F)/5hrs/AC.
It is an age-hardened superalloy typically supplied in the solution annealed and age-hardened condition. The recommended temperature range for hot-forming operations such as forging or hot-rolling is between 870°C (1600°F) and 1190°C (2175°F).

PROPRIETARY INCONEL alloy 740H Mechanical Properties

Temperature

0 - 30°C ≥ 300°C

PROPERTY / VALUE

Tensile Strength

1066 — 1158 MPa

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Elongation, A

23.7 — 35.3 %

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Yield Strength, Rp0.2

val1 MPa

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Reduction of Area

val1 %

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PROPRIETARY INCONEL alloy 740H International Equivalent Materials

Showing 2 of 2 results.

MATERIAL

STANDARD

COUNTRY / PRODUCER

EQUIVALENCE CATEGORY

MATERIAL

B 983 N07740

STANDARD

ASTM

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Composition 100%

MATERIAL

B 872 N07740

STANDARD

ASTM

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Composition 100%

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

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2Cross References

15Composition
72Mechanical Properties
50Physical Properties
1Heat Treatment
4Metallography
-Machinability

12Stress-Strain
-Formability
-Fatigue
-Fracture
9Creep

-Joints
-Coatings
-Dimensions
-Tribology

2Corrosion
3Ageing
-Weatherability
-Irradiation

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