利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN109881081A 一种700MPa级热轧集装箱钢及其低成本生产工艺 无效 - 驳回

一种700MPa级热轧集装箱钢及其低成本生产工艺
摘要：
本发明公开一种700MPa级热轧集装箱钢及其低成本生产工，该热轧集装箱钢具有耐蚀性、冷弯性能，所述集装箱钢的合金成分为：C 0.05～0.09％，Mn 1.20～1.50％，Si 0.35-0.50％，Al 0.020-0.050％，Cu 0.20-0.40％，Cr 0.50-0.70％，Ti 0.070-0.100％,P不大于0.015％，S不大于0.005％，N不大于0.0060％，O不大于0.005％。本发明的热轧集装箱钢成分设计上，合金含量较低，钢液纯净，在保证优异性能的基础上，节约成本；具有较高的压缩比，改善成品的组织和性能。力学性能上，各项指标达到要求，且富余量较充足。
摘要（英）：

The invention discloses 700 MPa-grade hot-rolled container steel and a low-cost production method thereof. The hot-rolled container steel has corrosion resistance, cold bending property, and of the container steel comprises the following alloy composition of, in percentage by mass, 0.05-0.09% of C, 1.20-1.50% of Mn, 0.35-0.50% of Si, 0.020-0.050% of Al, 0.20-0.40% of Cu, 0.50-0.70% of Cr, 0.070-0.100% of Ti, not greater than 0.015% of P, not greater than 0.005% of S, not greater than 0.0060% of N and not greater than 0.005% of O. According to the 700 MPa-grade hot-rolled container steel and the low-cost production method thereof, the hot-rolled container steel component design is low in alloy content, pure in molten steel, and capable of saving the cost on the basis of ensuring excellent performance; and the high compression ratio is achieved, and the structure and the performance of finished products are improved; and in terms of mechanical property, various indexes meet the requirements, and the surplus amount is relatively sufficient.

0/0