GB H40990 Nickel Alloys

Material group: Nonferrous Alloys / Nickel Alloys

Country / Standard: China / GB

Data updates

Latest Update: 2026-01

Total number of updates: 2

Update History

2025-11

This material has 222 properties — only a subset is shown here.

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GB H40990 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

1.70 – 2.40

UNIT

CAS NUMBER

7429-90-5

CRITERIA

VALUE

≤ 0.005

UNIT

CAS NUMBER

7440-42-8

CRITERIA

VALUE

≤ 0.08

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-45-1

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

7439-95-4

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

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

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-33-7

GB/T 14995: 2025 / Wrought superalloy-Hot-rolled plates

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GB H40990 Physical Properties

Temperature

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

PROPERTY / VALUE

Modulus of Elasticity

185 — 210 GPa

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Electrical Resistivity

1.37 Ω∙mm²/m

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Density

val1 kg/dm³

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Electrical Conductivity

val1 S/m

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Heat Capacity

val1 J/(kg∙°C)

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Poisson Coefficient

val1

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This material has 222 properties — only a subset is shown here.

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GB H40990 Heat Treatments

Solution heat treatment: 1080-1140°C, air cooled; Aged: 900 ± 10°C, held for 5 h and air cooled.
Heat treatment 1: (1080-1100°C, 2h, air cooled) + (900±10°C, 5h, air cooled)
Heat treatment 2: (985-1015°C, 4h, air cooled) + (700±10°C, 16h, air cooled)

GB H40990 Mechanical Properties

Temperature

0 - 30°C ≥ 300°C

PROPERTY / VALUE

Tensile Strength

930 — 1130 MPa

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Elongation, A

≥ 25 %

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Yield Strength, Rp0.2

val1 MPa

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Grain Size

val1

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Reduction of Area

val1 %

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Vickers Hardness (HV)

val1

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GB H40990 International Equivalent Materials

Showing 2 of 4 results.

MATERIAL

STANDARD

COUNTRY / PRODUCER

EQUIVALENCE CATEGORY

MATERIAL

GH 4099

STANDARD

COUNTRY / PRODUCER

China

EQUIVALENCE CATEGORY

Identical

MATERIAL

GH99

STANDARD

COUNTRY / PRODUCER

China

EQUIVALENCE CATEGORY

Identical

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

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See all 4 equivalent grades with detailed mapping by standard, producer and equivalence category.

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4Cross References

66Composition
68Mechanical Properties
64Physical Properties
3Heat Treatment
-Metallography
-Machinability

9Stress-Strain
1Formability
-Fatigue
-Fracture
6Creep

-Joints
-Coatings
1Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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