| 摘要 |
The present application relates to a high-tensile steel consisting of 0.15-0.30 weight% of C, 17.0-19.0 weight% of Ni, 4.0-6.0 weight% of Co, 2.0-3.5 weight% of Cr, 0.70-3.25% weight% of W, and the remainder of Fe. [Reference numerals] (S10) Forming a steel plate by dissolving and casting a steel plate composition containing 0.15-0.30 wt% of C, 17.0-19.0 wt% of Ni, 4.0-6.0 wt% of Co, 2.0-3.5 wt% of Cr, 0.70-3.25 wt% of W, and the remainder of Fe; (S20) Hot-rolling the steel plate; (S30) Quenching the steel plate; (S40) Steel plate solution treatment |
