DIN 17465 Grade GX40CrSi17 Soft Annealed Steel – Ideal for High‑Temperature Applications
G-X 40 CrSi 17, basically for parts of oven for medium mechanical loadings, like widdle grate, rods for grates, pipe clamp and pipe connexion, distance plates, far jet nozzles. In cement industry for protecting rings and protecting archs, segments etc., for cased insert box and attachments for superheater. resistance: - in oxidising burning atmosphere: 950°C - in reductive burning atmosphere: 900°C - in oxidising sulfureous gas: 950°C - in reductive sulfureous gas: 900°C
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.7 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 220 GPa | Typical for Ferritic Stainless Steel |
Hardness, Brinell | 20.0 °C | 300 [-] | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Ferritic Stainless Steel |
Shear modulus | 23.0 °C | 77 GPa | Typical for Ferritic Stainless Steel |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 400.0 °C | 1.25E-5 1/K | |
800.0 °C | 1.35E-5 1/K | ||
Max service temperature, long | 0 - 950 °C | ||
Melting point | 1425 - 1530 °C | Typical for Ferritic Stainless Steel | |
Specific heat capacity | 20.0 °C | 500 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 18.8 W/(m·K) | |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 23.0 °C | 6E-7 - 7.5E-7 Ω·m | Typical for Ferritic Stainless Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.3 - 0.45 % |
Chromium | 16 - 18 % |
Manganese | 0.5 - 1 % |
Phosphorus | 0.04 % |
Silicon | 1 - 2.5 % |
Sulfur | 0.03 % |
Metal
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