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发明公开
CN106995903A 一种海洋工程用耐应力腐蚀双相钢不锈钢丝绳及制备方法 无效 - 撤回

一种海洋工程用耐应力腐蚀双相钢不锈钢丝绳及制备方法
摘要：
本发明提出一种海洋工程用耐应力腐蚀双相钢不锈钢丝绳，其原料钢按重量百分比由25％‑28％的元素铬(Cr)，6％‑9％的元素镍(Ni)，3％‑5％的元素钼(Mo)以及铁为基础组成，以不小于0.3％的氮(N)元素进行微合金化处理，钢中加入含量不大于0.5％的硼(B)、钛(Ti)、铝(Al)、钒(V)、铌(Nb)中的任何一种或几种微量元素。本发明还提出一种制备上述的不锈钢丝绳的制备方法。本发明的海洋用耐应力腐蚀双相钢不锈钢丝绳，原料采用氮微合金化双相钢，所制得的钢丝绳具有优异的耐应力强度和耐腐蚀性，加工性能好，具备小尺寸直径的工艺性能，满足海洋深水区高压力和高浓度盐含量的升降作业。
摘要（英）：

The invention provides a stress-corrosion-resistant dual-phase steel stainless steel wire rope used for oceanographic engineering. Raw material steel of the stress-corrosion-resistant dual-phase steel stainless steel wire rope is composed of, by weight, 25-28% of Chromium (Cr), 6-9% of nickel (Ni), 3-5% of molybdenum (Mo) and iron, no less than 0.3% of nitrogen (N) elements are used for microalloying treatment, and any one or more trace elements of boron (B), titanium (Ti), aluminum (Al), vanadium (V) and niobium (Nb) with the content being no more than 0.5% are added into the steel. The invention further provides a preparation method for preparing the stainless steel wire rope. According to the stress-corrosion-resistant dual-phase steel stainless steel wire rope used for ocean, nitrogen microalloyed dual-phase steel is used as a raw material, the prepared steel wire rope has excellent stress resistant intensity and corrosion resistant, the machinability is good, the steel wire rope has the processing property of small diameters, and the requirements of lifting operation in marine deepwater area with high pressure and high salt concentration are met.

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