● 船級(jí)社規(guī)范 Classification of Ships
中國(guó)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)勞氏船級(jí)社規(guī)范	LR Rules and Regulations for Classification of Ships
挪威船級(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)船級(jí)社規(guī)范	GL Rules for Classification and Construction
● 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