EUROFERvalues describe: EUROFER97
Fusion, privateBig science (accelerators, light sources, public fusion)
What it enables
Reactor structures whose activation decays in decades, not millennia: no Mo, no Nb in the chemistry.
Status and pusher
EUROFER industrialized for DEMO design work; ODS variants remain a fabrication problem. Pushed by the EU fusion program and Japan.
Properties
The values below are candidate: compiled from the sources named, not yet individually validated.
Provisional provenance: EUROfusion and international fusion materials programmes.
Wet cleaning
| Recipe | not established for fusion service |
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| Forbidden | none noted |
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| Limit | activation constrains composition, which constrains everything else |
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Vacuum and outgassing
| Outgassing, unbaked (10 h) | insufficient data |
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| Outgassing, baked | insufficient data |
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| Vapour pressure | negligible |
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Temperature
| Bake, assembled | 450 °C |
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| Vacuum degas | 1000 °C |
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| Metallurgical limit | tempering 750 °C; service limited to ~550 °C |
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Thermal
| CTE | 11 ppm/K |
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| Thermal conductivity | 29 W/m·K |
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| Specific heat | 490 J/kg·K |
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| Melting / softening | 1450 °C |
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Mechanical
| Strength | 450–550 ys MPa |
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| Tensile | 600–700 MPa |
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| Elongation | 20 % |
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| Young's modulus | 217 GPa |
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| Density | 7.8 g/cm3 |
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Electrical and magnetic
| Relative permeability | ferromagnetic |
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Engineering
| Corrosion | moderate |
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| Joining | weldable |
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| Process notes | reduced activation is the entire design driver |
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| Availability and cost | programme quantities |
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Sources · 1
- EUROfusion materials program
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