| 摘要 |
<p>The invention concerns the use of a wear resistant, temper resisting steel alloy of -0.30 to 0.40% carbon -1.0 to 1.60% silicon -0.50 to 0.80% manganese -2.0 to 2.6% chromium -maximum 0.025% phosphorus -maximum 0.025% sulfur -the remainder iron and limited contaminants. - The alloy is used as the work material for making dredger teeth forged in a close-die, especially suction dredger teeth, which teeth after the forging are heated to a temperature above the A3 temperature, are hardened in oil and tempered.</p> |
