PROPRIETARY ATI X-751 Nickel Alloys

Material group: Nonferrous Alloys / Nickel Alloys

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2022-12

Total number of updates: 2

Update History

2016-11

This material has 37 properties — only a subset is shown here.

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PROPRIETARY ATI X-751 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

1.10 – 1.35

UNIT

CAS NUMBER

7429-90-5

CRITERIA

VALUE

0.0015 – 0.009

UNIT

CAS NUMBER

7440-42-8

CRITERIA

VALUE

0.03 – 0.1

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-89-6

CRITERIA

Nb+Ta

VALUE

val1

UNIT

CAS NUMBER

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-02-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-32-6

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-62-2

Allegheny Technologies Incorporated, Product Data Sheets,

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PROPRIETARY ATI X-751 Physical Properties

Temperature

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

PROPERTY / VALUE

Modulus of Elasticity

185 — 211 GPa

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Density

val1 kg/dm³

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Melting Temperature

val1 °C

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Poisson Coefficient

val1

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This material has 37 properties — only a subset is shown here.

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PROPRIETARY ATI X-751 Heat Treatments

For optimum creep-rupture strength, solution treating can be done at 1149°C (2100°F) for 2-4 hours, then air-cooled. Aging can be done at 843°C (1550°F) for 24 hours, with an air cool, followed by 20 hours at 704°C (1300°F), air cool. For optimum room and elevated temperature tensile properties, the alloy can be solution treated at 982°C (1800°F) for 1 hour, air cooled, followed by aging at 732°C (1350°F) for 8 hours, slow cooling at 56°C (100°F) per hour to 621°C (1150°F), holding at 621°C (1150°F) for 8 hours, and air cooled. For service below 593°C (1100°F), the alloy may be hardened by omitting the solution heat treatment and directly aging at 704°C (1300°F) after hot or cold working, or by stress relief annealing at 885°C (1625°F) for 24 hours followed by air cooling prior to the 20 hour age at 704°C (1300°F).

PROPRIETARY ATI X-751 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Rockwell Hardness (HR)

32 — 40

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-Cross References

9Composition
1Mechanical Properties
25Physical Properties
1Heat Treatment
-Metallography
-Machinability

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

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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