|
|
|
●船规
|
| 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 |
| 德国船级社规范 |
GL Rules for Classification and Construction |
| |
● 标准 Standard |
|
GB/T5312
|
●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
外径和壁厚的允许偏差
|
外径 D
|
热轧管
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外径尺寸 mm
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≤ 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
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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
|
|
[Source：原创]
[Author：上海月月潮]
[Date：09-10-12]
[Hot：]
