DIN 17745 Grade NiCr42-6 soft annealed (+A)

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Description

The iron alloy with special thermal expansion NiCr42-6, material number 1.3946, is used for compounds of metal and glass, for example fusions with TV piston glas or flash bulbs. The break point temperature (temperature at which a break point in the expansion-temperature-curve occurs) is 265 degrees C. The material has extremely low thermal expansion at 350 degrees C. The cupping index at 1 mm thickness is 9.5 mm.

Related Standards

This material data has been provided by WIAM.

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

PropertyTemperatureValue

Density

20.0 °C

8.2 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

147 GPa

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Elongation

20.0 °C

30 %

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Tensile strength

20.0 °C

440 - 640 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

100.0 °C

6.9E-6 1/K

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150.0 °C

7E-6 1/K

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200.0 °C

7.2E-6 1/K

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300.0 °C

8.3E-6 1/K

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400.0 °C

1.01E-5 1/K

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500.0 °C

1.14E-5 1/K

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600.0 °C

1.24E-5 1/K

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Specific heat capacity

20.0 °C

500 J/(kg·K)

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Thermal conductivity

20.0 °C

13 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

9.5E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

0.1 %

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Chromium

6 - 7 %

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Manganese

1 %

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Nickel

41 - 43 %

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Silicon

0.5 %

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