| 摘要 |
The following composition (wt. %) is cast into optionally flat ingots: C 0.05-2, Si up to 0.9, P up to 0.06, Mn 0.6-1.2, Al up to 0.05%, Cr 0.02-0.6, Nb up to 0.08%, Ti up to 0.08%, V up to 0.08%, Mo up to 0.4%, Cu up to 1%, Ni up to 1%, remainder Fe and inevitable impurities. The ingot is heated to hot-rolling temperature of 750-950 degrees C. The hot sheet is cooled to normal temperatures, up to 250 degrees C, at the rate of at least 10 K/s, for winding into rolls. An Independent claim is included for corresponding sheet. |
