GOST 10704 電焊鋼管 尺寸表 標準文件 下載
GOST 10704-91-電焊鋼管 尺寸表 俄文版
GOST 10704-91-電焊鋼管 尺寸表 英文版
ELECTRIC LINE 磯TELDED STEEL TUBES
RANGE OF SIZES
GOST 10704-91
Official Edition
THE USSR COMMITTEE FOR STANDARDIZATION AND METROLOGY
Moscow
1. This Standard establishes the range of sizes for electric line welded steel tubes.
2. The tube dimensions shall comply with table 1.
3. The following tube modifications shall be manufactured categorized by length:
with unsized length:
with diameter less than 30 mm - no less than 2 m;
with diameter more than 30 mm and less than 70 mm - no less than 3 m;
with diameter more than 70 mm and less than 152 mm - no less than 4 m;
with diameter more than 152 mm - no less than 5 m.
At the customer's request, tubes of groups A and B in compliance with GOST 10705, with
diameter more than 152 mm shall be manufactured with the length of no less than 10 m;
tubes of all the groups with diameter less than 70 mm shall be manufactured with the
length of no less than 4 m;
sized length:
with diameter less than 70 mm - from 5 m to 9 m;
with diameter more than 70 mm and less than 219 mm - from 6 m to 9 m;
with diameter more than 219 mm and less than 426 mm - from 10 m to 12 m.
Tubes with diameter more than 426 mm shall be manufactured only of the out-of-gauge
length. By agreement between manufacturer and customer the tubes with diameter more than
70 mm and less than 219 mm is allowed to be manufactured with the length from 6 m to
12m;
multiple sized no less than 250 mm, not exceeding the lower limit stipulated for cut-tolength
tubes. The 5 mm allowance for each cut shall be stipulated (unless otherwise indicated)
and shall be included in each multiplicity.
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