产品详情
产品参数
船用管
用于制造船舶I级承压管系、II级承压管系、锅炉及过热器用的碳钢和碳锰钢无缝钢管
产品描述
● 船级社规范 Classification of Ships
中国船级社规范CCS Rules for Classification and Construction of Ships
法国BV船级社规范BV Rules for Classification of Ships
英国劳氏船级社规范LR Rules and Regulations for Classification of Ships
挪威船级社规范DNV Rules for Classification of Ships
美国ABS船级社规范ABS Rules for Classification of Ships
日本NK船级社规范NK Rules for Classification of Ships
德国船级社规范GL Rules for Classification and Construction
● 标准 Standard
GB/T5312-2009
● 用途 Uses
用于船用锅炉、过热器及耐压力系管道的制造
●尺寸偏差 Deviation
外径和壁厚的允许偏差
外径 D | 热轧管 | 外径尺寸 mm | ≤ 159 | ＞ 159 | |
允许偏差 % | ± 1.0 | ± 1.25 | |||
冷拔管 | 外径尺寸 mm | ≤ 30 | ＞ 30~50 | ＞ 50 | |
允许偏差 | ± 0.20mm | ± 0.30mm | ± 0.8% | ||
壁厚 S | 热轧管 | 壁厚尺寸 mm | 3 ＜ S ≤ 20 | S ＞ 20 | |
允许偏差 % | +15-10 | ± 10 | |||
冷拔管 | 壁厚尺寸 mm | 1.5~3 | ＞ 3 | ||
允许偏差 % | +12-10 | ± 10 | |||