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| Material | Chrome Vanadium | Chrome Silicon |
|---|---|---|
| ASTM | A 231 | A 401 |
| Nominal Analysis | C -- .48 - .53% | C -- .51-.59% |
| Cr -- .80 - 1.10% | Cr -- .60-.80% | |
| V -- .15 min % | Si -- 1.20-1.60% | |
| Minimum Tensile Strength | 190-300 | 235-300 |
| Modulus of Elasticity E | 30 | 30 |
| psi x 103 | ||
| Design Stress % Minimum | 45 | 45 |
| Tensile | ||
| Modulus in Torsion | 11.5 | 11.5 |
| G psi x 106 | ||
| Maximum Temp. F | 425 | 475 |
| Maximum Temp. C | 218.5 | 246 |
| Rockwell Hardness | C41-55 | C48-55 |
| Method of Manufacture | Cold drawn and heat treated before fabrication. | Cold drawn and heat treated before fabrication. |
