| 摘要 |
<p>The invention provides a ferrous metal crushing bar, coming directly from casting with controlled solidification, characterized in that it has a fine grain surface structure and a core with radially orientated dendritic structure, in that it comprises, in percent by weight, between about 1.1 and 3% of carbon, between about 3 and 30% of chromium, between about 0.3 and 1.5% of magnesium and between about 0.3 and 1% of silicon, and in that it comprises at least 10% by volume of carbides.</p> |
