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기록
一种氢能储运装备用高强度耐腐蚀不锈钢无缝管及其制备工艺
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10청구항 · 2 독립항
§ Ⅰ
개요
발명자
付晓辉; 陆秋月; 沈家洛; 张培华
출원일
Sep 3, 2026
공개일
Oct 16, 2026
IPC 분류
C22C 38/02 (2006.01)C22C 38/04 (2006.01)C22C 38/58 (2006.01)C22C 38/44 (2006.01)C22C 38/42 (2006.01)C22C 38/48 (2006.01)C22C 38/52 (2006.01)C22C 38/54 (2006.01)C22C 33/04 (2006.01)C22B 9/18 (2006.01)C21D 8/10 (2006.01)C21D 1/34 (2006.01)C21D 1/26 (2006.01)F16L 9/02 (2006.01)
本发明涉及一种氢能储运装备用高强度耐腐蚀奥氏体不锈钢无缝管及其制备工艺，该无缝管化学成分按质量百分比计为：C0.012%~0.020%、Si0.20%~0.40%、Mn1.20%~1.80%、Cr17.00%~18.50%、Ni14.00%~16.00%、Mo2.20%~2.80%、W0.20%~0.60%、N0.14%~0.18%、Cu0.60%~1.20%、Nb0.04%~0.10%、Co0.30%~0.80%、B0.001%~0.003%、RE0.02%~0.06%，余量为Fe及不可避免杂质。构建Nieq‑H奥氏体稳定当量与IHR氢脆抗性指数双量化调控体系，配合制备工艺，使管材屈服强度Rp0.2≥350MPa，抗拉强度Rm≥640MPa，断后伸长率A≥40%，在‑269℃液氦环境下，夏比V型缺口冲击功KV2≥120J。