EN 10028-4 Grade X8Ni9 quenched and tempered (+QT)

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Description

Cryogenic Ni-alloy steel for pressure vessel construction, refrigerators, transmission parts and for construction parts in machine and apparatus engineering up to -196 °C.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValueConditionRelated StandardsShape

Density

20 °C

7.88 g/cm³

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EN 10028-4

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27 °C

7.841 g/cm³

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Mechanical

PropertyTemperatureValueConditionRelated StandardsShape

Elastic modulus

-269 °C

205.5 GPa

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-200 °C

205.2 GPa

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-150 °C

203.4 GPa

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-100 °C

201 GPa

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-100 °C

201 - 201.4 GPa

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-100 °C

201.4 GPa

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-50 °C

198.9 GPa

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20 °C

195 GPa

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quenched and tempered (+QT)

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27 °C

195.1 GPa

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100 °C

190 GPa

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quenched and tempered (+QT)

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200 °C

184 GPa

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300 °C

178 GPa

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quenched and tempered (+QT)

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400 °C

170 GPa

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quenched and tempered (+QT)

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Elongation

20 °C

18 %

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Poisson's ratio

-269 °C

0.285 [-]

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-200 °C

0.286 [-]

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quenched and tempered (+QT)

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-150 °C

0.287 [-]

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-100 °C

0.288 [-]

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-50 °C

0.29 [-]

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27 °C

0.292 [-]

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quenched and tempered (+QT)

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Shear modulus

-269 °C

80 GPa

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-200 °C

79.8 GPa

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quenched and tempered (+QT)

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-150 °C

79 GPa

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quenched and tempered (+QT)

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-100 °C

78.2 GPa

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quenched and tempered (+QT)

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-50 °C

77.1 GPa

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quenched and tempered (+QT)

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27 °C

75.4 GPa

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Tensile strength

20 °C

640 - 840 MPa

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20 °C

640 - 820 MPa

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quenched and tempered (+QT)

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20 °C

680 - 840 MPa

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quenched and tempered (+QT)

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20 °C

680 - 820 MPa

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quenched and tempered (+QT)

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Yield strength

20 °C

480 MPa

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quenched and tempered (+QT)

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20 °C

490 MPa

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quenched and tempered (+QT)

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20 °C

575 MPa

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20 °C

585 MPa

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Thermal

PropertyTemperatureValueConditionRelated StandardsShapeComment

Coefficient of thermal expansion

-100 °C

1.02e-05 1/K

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20 °C

1.1e-05 1/K

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100 °C

1.14e-05 1/K

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200 °C

1.18e-05 1/K

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300 °C

1.21e-05 1/K

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400 °C

1.25e-05 1/K

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Max service temperature

-200 °C

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Long

-196 °C

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Long

Melting point

1316 - 1595 °C

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Typical for Nickel Steel

Specific heat capacity

-100 °C

442 J/(kg·K)

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20 °C

464 J/(kg·K)

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100 °C

479 J/(kg·K)

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200 °C

495 J/(kg·K)

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300 °C

511 J/(kg·K)

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400 °C

528 J/(kg·K)

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Thermal conductivity

-100 °C

23.9 W/(m·K)

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20 °C

30.2 W/(m·K)

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100 °C

32.8 W/(m·K)

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200 °C

34.4 W/(m·K)

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300 °C

34.7 W/(m·K)

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400 °C

34 W/(m·K)

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Thermal diffusivity

20 °C

8.3 mm²/s

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100 °C

8.5 mm²/s

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200 °C

8.4 mm²/s

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300 °C

8 mm²/s

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400 °C

7.3 mm²/s

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Electrical

PropertyTemperatureValueConditionRelated StandardsShape

Electrical resistivity

-100 °C

2.51e-07 Ω·m

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20 °C

3.22e-07 Ω·m

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100 °C

3.73e-07 Ω·m

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200 °C

4.4e-07 Ω·m

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300 °C

5.19e-07 Ω·m

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400 °C

6.13e-07 Ω·m

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Chemical properties

PropertyValueConditionRelated StandardsShape

Carbon

0.1 %

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Manganese

0.3 - 0.8 %

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Molybdenum

0.1 %

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Nickel

8.5 - 10 %

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Phosphorus

0.02 %

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Silicon

0.35 %

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Sulfur

0.005 %

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0.01 %

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Vanadium

0.05 %

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Technological properties

Property
Supplier Disclaimer

The given information is a rough description and some properties can depend on various factors such as product thickness. Please contact the supplier or refer to the related norm or standard for further information.

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