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A new high-strength Cr-Si spring steel with a better sag resistance and good fatigue property for engine valve springs was developed through the increase of carbon content and the addition of alloying elements such as V, Mo, W to conventional Cr-Si spring steel (SAE 9254). A new steel showed tensile strength of 2100 Mpa, which is 10 percent higher than that of the conventional steel.
A new high-strength Cr-Si spring steel with a better sag resistance and good fatigue property for engine valve springs was developed through the increase of carbon content and the addition of alloying elements such as V, Mo, W to conventional Cr-Si spring steel (SAE 9254). A new steel showed tensile strength of 2100 Mpa, which is 10 percent higher than that of the conventional steel.
| Author(s) | Deok Young Ban, Kiswire R&D Center; and Won Jong Nam, POSCO, Korea. |
|---|---|
| Publication/Event/Pages | Paper presented at WAI 69th Annual Convention, Atlanta, GA USA. Paper published in Wire Journal International, Dec. 2000, pg. 90. |
| Year | 1999 |
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