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DIN 17465 Grade GX40NiCrSiNb38-18: High‑Temperature Cast Alloy for Automotive & Industrial Parts

G-X 40 NiCrSiNb 38 18, for parts for high resistance against variation of temperature, delivering grates, bearing racks, bearing arms, parts of reeling plant oven, like drums, blades and shield etc.. Especially applicable for parts of oven in carborising atmosphere. resistance: - in oxidising burning atmosphere: 1120°C - in reductive burning atmosphere: 1080°C - in oxidising sulfureous gas: 1080°C

Properties

General

PropertyTemperatureValue

Density

20.0 °C

8 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

190 - 210 GPa

Typical for Steel

Elongation

20.0 °C

5 %

Poisson's ratio

23.0 °C

0.3 [-]

Typical for Steel

Tensile strength

20.0 °C

400 MPa

Yield strength Rp0.2

20.0 °C

220 MPa

Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

400.0 °C

1.6E-5 1/K

800.0 °C

1.7E-5 1/K

1000.0 °C

1.85E-5 1/K

Max service temperature, long

0 - 1120 °C

Specific heat capacity

20.0 °C

500 J/(kg·K)

Thermal conductivity

20.0 °C

14.6 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

9.9E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.3 - 0.5 %

Chromium

17 - 19 %

Manganese

1.5 %

Nickel

36 - 39 %

Niobium

1.2 - 1.8 %

Phosphorus

0.04 %

Silicon

1 - 2 %

Sulfur

0.03 %


Metal

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