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。
● 船级社规范 Classification of Ships
中国CCS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LR船级社规范LR Rules and Regulations for Classification of Ships
挪威DNV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GL船级社规范GL Rules for Classification and Construction
韩国KR船级社规范KR Rules for Classification of Ships
意大利RINA船级社规范RINA Rules for Classification of Ships
● 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 |
天津盛世达昌科技 022-26883198 13820354040
12Cr2MoWVTiB合金管 
