| Steel number n° 668 | |
| Catégory: | |
| Numerical EN 10027/AFNOR symbolic: 28 Ni Cr Mo V 10 | |
| Numeric EN 10027/AFNOR numerical: 1.2740 | |
| AISI designation: | |
| Information: Old designation: | |
| Applications examples and others informations: | |
No informations about forming. |
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No informations about weldability. |
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No informations about corrosion resistance. |
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| See this steel Schaeffler Diagram | |
| Chemical composition element percentage | |
| Carbon entre 0.24 et 0.32 % | Others steels: Steel 1.6932 - 28 Ni Cr Mo V 8-5 Steel 1.2737 - 28 Ni Cr V 5 Steel 1.2662 - X 30 W Cr Mo V 9-3 Steel 1.2581 - X30WCrV9 Steel 1.6580 - 30 CND 8 |
| Chromium entre 0.6 et 0.9 % | |
| Nickel entre 2.3 et 2.6 % | |
| Molybdenum entre 0.5 et 0.7 % | |
| Silicium entre 0.3 et 0.5 % | |
| Manganese entre 0.2 et 0.4 % | |
| Vanadium entre 0.25 et 0.32 % | |
| No Tungsten | |
| Phosphorus:0.03% | |
| Sulfurus:0.03% | |
| Others elements: - | |
| Note: Verify that there is no mistake in this document. |