DIN 17465: GX40CrNiSi27-4 Cast Steel – High‑Temperature Resistance for Oven Components
G-X 40 CrNiSi 27 4, normally for heat resitant cast pieces, for example moveable oven and burning parts, gates, tracks, rolls, burning jets, shapes for glass. Especially for parts of oven, when high demand still against sulfureous gases to be steady are, like attachments for super heater, gripper arbor, annealing retorts and similar parts. resistance: - in oxidising burning atmosphere: 1100°C - in reductive burning atmosphere: 1100°C - in oxidising sulfureous gas: 1100°C - in reductive sulfureous gas: 1080°C
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.6 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 195 GPa | Typical for Austenitic Stainless Steel |
Hardness, Brinell | 20.0 °C | 200 - 300 [-] | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Austenitic Stainless Steel |
Shear modulus | 23.0 °C | 77 GPa | Typical for Austenitic Stainless Steel |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 400.0 °C | 1.3E-5 1/K | |
800.0 °C | 1.45E-5 1/K | ||
1000.0 °C | 1.65E-5 1/K | ||
Max service temperature, long | 0 - 1100 °C | ||
Melting point | 1230 - 1480 °C | Typical for Austenitic Stainless Steel | |
Specific heat capacity | 20.0 °C | 500 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 16.7 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 8E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.35 - 0.5 % |
Chromium | 25 - 28 % |
Manganese | 1.5 % |
Nickel | 3.5 - 5.5 % |
Phosphorus | 0.04 % |
Silicon | 1 - 2.5 % |
Sulfur | 0.03 % |
Metal
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