Generic Ni-Resist D-2B Cast irons

Material group: Ferrous Alloys / Cast irons

Country/Standard: Generic

Data updates

Latest Update: 2024-12

Total number of updates: 2

Update History

2017-10

This material has 4383 properties — only a subset is shown here.

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Generic Ni-Resist D-2B Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

≤ 3.0

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-02-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

Nickel Institute website - Technical Literature / Available at: www.nickelinstitute.org, visited Sept-2024

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Generic Ni-Resist D-2B Physical Properties

Temperature

0 - 30°C 100 - 300°C

PROPERTY / VALUE

Modulus of Elasticity

112 — 133 GPa

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Density

val1 kg/dm³

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Thermal Conductivity

12.6 W/(m∙°C)

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Electrical Resistivity

1 Ω∙mm²/m

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Electrical Conductivity

val1 S/m

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This material has 4383 properties — only a subset is shown here.

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Generic Ni-Resist D-2B Heat Treatments

Stress relieve: This is done by heating to 600-650°C (1110-1200°F) at a rate of 50-100°C/hour (90-180°F/hour). The castings should be held in this temperature range for 2hours plus 1 hour per 25 mm (1 inch) of section thickness. They should then be furnace-cooled to or near ambient temperature. With castings made from Ni-resist alloys with the higher coefficients of expansion and with thin sections it is most important to have controlled, uniform heating and slow cooling.

High temperature stability: Castings intended for static or cyclic service at 480°C (900°F) and above can be given a dimensional stabilization heat treatment. If not done, carbon is slowly removed from the austenite matrix while at service temperatures. This results in a small growth in volume and distortion can occur. When the heat treatment is used this problem is eliminated. The proper cycle is to heat to 850-900°C (1560-1650°F) at 50-100°C (90-180°F) per hour. The castings should be held in this temperature range for not less than 2 hours plus 1 hour for each 25 mm (1 inch) of section thickness followed by air cooling.

Normalizing: The same heat treatment that is used for high-temperature stabilization can be used for normalizing. It will result in an increase in yield strength and elongation.

Annealing: If the castings of the correct composition are higher in hardness than expected, excessive carbide formation has probably occurred. Some softening and improved machinability can be achieved through high temperature annealing. This heat treatment will breakdown and/or spheroidize some of the carbides. To anneal, castings should be heated to 950-1025°C (1740-1875°F) at 50-100°C (90-180°F) per hour. They should be held in this temperature range for 2 hours per 25 mm (1 inch) of section thickness followed by cooling in the furnace or in still air.

Ambient temperature stability: For assured dimensional stability for service at ambient temperatures, slow, uniform heating to 815-840°C (1500-1560°F) if suggested. Castings should be held in this temperature range for one hour per 25 mm (1 inch) of section thickness and uniformly cooled to at least 315°C (600°F). For stringent requirements, the uniform cooling can be continued to ambient temperature.

Generic Ni-Resist D-2B Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

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Tensile Strength

390 — 500 MPa

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Elongation, A

7 — 15 %

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Impact Energy

val1 J

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Brinell Hardness (HB)

150 — 255

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9 Cross References

5 Composition
5 Mechanical Properties
7 Physical Properties
1 Heat Treatment
- Metallography
- Machinability

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

- Joints
- Coatings
- Dimensions
- Tribology

4348 Corrosion
2 Ageing
- Weatherability
- Irradiation

5 Total Suppliers