ASME B30.30-2023 pdf download
ASME B30 系列规范打包下载：https://fengshecad.com/804/
ASME B30.30-2023起重用钢丝绳安全标准 PDF下载
首次把“全生命周期管理”写入 B30 系列，覆盖钢丝绳、索套、接头及储存、安装、使用、报废全过程。标准规定新绳最小破断拉力安全系数≥5、卷筒第一层绳偏角≤1.5°、磨损截面积减少 10 % 或断丝数达 5 % 强制报废；新增盐雾环境 720 h 抗腐蚀试验、在线磁探 MT 每 3 个月一次、-40 ℃ 冲击韧性≥27 J 的低温绳要求，为港口、矿山、风电等大载荷、高冲击、腐蚀工况提供统一换绳与判废依据
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