
用于制造船舶I級承壓管系、II級承壓管系、鍋爐及過熱器用的碳鋼和碳錳鋼無縫鋼管。
● 船級社規范 Classification of Ships
中國CCS船級社規范CCS Rules for Classification and Construction of Ships
法國BV船級社規范BV Rules for Classification of Ships
英國LR船級社規范LR Rules and Regulations for Classification of Ships
挪威DNV船級社規范DNV Rules for Classification of Ships
美國ABS船級社規范ABS Rules for Classification of Ships
日本NK船級社規范NK Rules for Classification of Ships
德國GL船級社規范GL Rules for Classification and Construction
韓國KR船級社規范KR Rules for Classification of Ships
意大利RINA船級社規范RINA Rules for Classification of Ships
● 標準 Standard
GB/T5312-2009
● 用途 Uses
用于船用鍋爐、過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 |