DIN 17465 Grade G-CoCr28 cast condition
DIN 17465 Grade G-CoCr28 cast condition introduction
According to DIN EN 10295 : 2003-01, the highest temperature in air is 1200 °C for the material G-CoCr28, material number 2.4778 . For cyclic heatings, the highest temperature in air is 1100 °C. The following is valid for the comparable austenitic DIN-material: The heat-resistant cast material G-CoCr28 is also produced as the wrought material CoCr28 (material number 2.4778 as well). It is applied in the construction of industrial furnaces at up to 1100 °C. Its weldability is good, a preheating is not necessary.
DIN 17465 Grade G-CoCr28 cast condition general
| Property | Temperature | Value |
|---|---|---|
| Density | 20.0 °C | Density of 8.1 g/cm³ |
DIN 17465 Grade G-CoCr28 cast condition thermal
| Property | Temperature | Value |
|---|---|---|
| Coefficient of thermal expansion | 400.0 °C | Coefficient of thermal expansion of 1.5E-5 1/K |
| - | 800.0 °C | Coefficient of thermal expansion of 1.6E-5 1/K |
| - | 1000.0 °C | Coefficient of thermal expansion of 1.7E-5 1/K |
| Max service temperature, long | - | Max service temperature, long of 0 - 1200 °C |
| Specific heat capacity | 20.0 °C | Specific heat capacity of 500 J/(kg·K) |
| Thermal conductivity | 20.0 °C | Thermal conductivity of 8.5 - 9.2 W/(m·K) |
| - | 800.0 °C | Thermal conductivity of 21 W/(m·K) |
DIN 17465 Grade G-CoCr28 cast condition chemical
| Property | Value |
|---|---|
| Carbon | Carbon of 0.05 - 0.25 % |
| Chromium | Chromium of 27 - 30 % |
| Cobalt | Cobalt of 48 - 52 % |
| Iron | Iron of 9.68 % |
| Manganese | Manganese of 1.5 % |
| Molybdenum | Molybdenum of 0.5 % |
| Nickel | Nickel of 4 % |
| Niobium | Niobium of 0.5 % |
| Phosphorus | Phosphorus of 0.04 % |
| Silicon | Silicon of 0.5 - 1.5 % |
| Sulfur | Sulfur of 0.03 % |
DIN 17465 Grade G-CoCr28 cast condition electrical
| Property | Temperature | Value |
|---|---|---|
| Electrical resistivity | 20.0 °C | Electrical resistivity of 8.25E-7 Ω·m |
DIN 17465 Grade G-CoCr28 cast condition mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Elastic modulus | 23.0 °C | Elastic modulus of 190 - 210 GPa | Typical for Steel |
| Elongation | 20.0 °C | Elongation of 6 % | - |
| Poisson's ratio | 23.0 °C | Poisson's ratio of 0.3 [-] | Typical for Steel |
| Tensile strength | 20.0 °C | Tensile strength of 490 MPa | - |
| Yield strength Rp0.2 | 20.0 °C | Yield strength Rp0.2 of 235 MPa | - |
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