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
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
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
| Property | Temperature | Value |
|---|---|---|
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
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 9.9E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
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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