用于制造船舶I級(jí)承壓管系、II級(jí)承壓管系、鍋爐及過(guò)熱器用的碳鋼和碳錳鋼無(wú)縫鋼管。
● 船級(jí)社規(guī)范 Classification of Ships
中國(guó)CCS船級(jí)社規(guī)范CCS Rules for Classification and Construction of Ships
法國(guó)BV船級(jí)社規(guī)范BV Rules for Classification of Ships
英國(guó)LR船級(jí)社規(guī)范LR Rules and Regulations for Classification of Ships
挪威DNV船級(jí)社規(guī)范DNV Rules for Classification of Ships
美國(guó)ABS船級(jí)社規(guī)范ABS Rules for Classification of Ships
日本NK船級(jí)社規(guī)范NK Rules for Classification of Ships
德國(guó)GL船級(jí)社規(guī)范GL Rules for Classification and Construction
韓國(guó)KR船級(jí)社規(guī)范KR Rules for Classification of Ships
意大利RINA船級(jí)社規(guī)范RINA Rules for Classification of Ships
● 標(biāo)準(zhǔn) Standard
GB/T5312-2009
● 用途 Uses
用于船用鍋爐、過(guò)熱器及耐壓力系管道的制造
●尺寸偏差 Deviation
外徑和壁厚的允許偏差
外徑 D | 熱軋管 | 外徑尺寸 mm | ≤ 159 | > 159 |
允許偏差 % | ± 1.0 | ± 1.25 |
冷拔管 | 外徑尺寸 mm | ≤ 30 | > 30~50 | > 50 |
允許偏差 | ± 0.20mm | ± 0.30mm | ± 0.8% |
壁厚 S | 熱軋管 | 壁厚尺寸 mm | 3 < S ≤ 20 | S > 20 |
允許偏差 % | +15-10 | ± 10 |
冷拔管 | 壁厚尺寸 mm | 1.5~3 | > 3 |
允許偏差 % | +12-10 | ± 10 |