1.1. Размеры труб должны соответствовать указанным в табл.1.
Таблица 1
Наруж- |
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0,5 | 0,6 | 0,8 | 1,0 | 1,2 | 1,4 | 1,5 | 1,6 | 1,8 | 2,0 | 2,2 | 2,5 | 2,8 | 3,0 | 3,2 | 3,5 | 4,0 | 4,5 | 5,0 | 5,5 | 6,0 | 6,5 | 7,0 | 7,5 | 8,0 | 8,5 | 9,0 | |
5,8 | - | - | - | 4,0 | 4,0 | 4,0 | 4,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
6 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
7 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
8 | 4,0 | 4,0 | 4,0 | 5,0 | 5,0 | 5,0 | 5,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
9 | 3,0 | 4,0 | 4,0 | 5,0 | 5,0 | 5,0 | 5,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
10 | 3,0 | 4,0 | 4,0 | 6,0 | 6,0 | 6,0 | 6,0 | - | 6,0 | 6,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
11 | 3,0 | 3,0 | 4,0 | 6,0 | 6,0 | 6,0 | 6,0 | - | 6,0 | 6,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
12 | 3,0 | 3,0 | 4,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
13 | 3,0 | 3,0 | 4,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 2,8 | 2,8 | 2,8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
14 | 3,0 | 3,0 | 4,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 2,8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
15 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 2,8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
16 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 2,8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
18 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | - | - | - | - | - | - | - | - | - | - | - | - | - |
20 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | - | - | - | - | - | - | - | - | - | - | - | - | - |
21 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | - | - | - | - | - | - | - | - | - | - | - | - | - |
22 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | - | - | - | - | - | - | - | - | - | - | - |
23 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | - | - | - | - | - | - | - | - | - | - | - |
24 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | - | - | - | - | - | - | - | - | - | - | - |
25 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | - | - | - | - | - | - | - | - | - | - | - |
27 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | - | - | - | - | - | - | - | - | - | - | - |
28 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | 5,0 | - | - | - | - | - | - | - | - | - | - |
29 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | 5,0 | - | - | - | - | - | - | - | - | - | - |
30 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | 5,0 | - | - | - | - | - | - | - | - | - | - |
32 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | 5,5 | 5,5 | 5,0 | 5,0 | 4,0 | 3,0 | 3,0 | - | - | - | - | - | - | - | - |
33 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | 5,5 | 5,5 | 5,5 | 5,5 | 5,0 | 4,0 | 3,0 | 3,0 | - | - | - | - | - | - | - | - |
34 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | 5,5 | 5,5 | 5,5 | 5,0 | 5,0 | 4,0 | 3,0 | 3,0 | - | - | - | - | - | - | - | - |
35 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | 5,5 | 5,5 | 5,5 | 5,0 | 5,0 | 4,0 | 3,0 | 3,0 | - | - | - | - | - | - | - | - |
36 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | 5,5 | 5,5 | 5,5 | 5,0 | 5,0 | 4,0 | 3,0 | 3,0 | - | - | - | - | - | - | - | - |
38 | 3,0 | 3,0 | 3,0 | 7,0 | 7,0 | 7,0 | 6,0 | 6,0 | 6,0 | 6,0 | 6,0 | 5,5 | 5,5 | 5,5 | 5,0 | 5,0 | 4,0 | 3,0 | 3,0 | - | - | - | - | - | - | - | - |
40 | 3,0 | 3,0 | 3,0 | 5,0 | 5,0 | 5,0 | 5,0 | 5,0 | 5,0 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,0 | 4,0 | 4,0 | 3,0 | 3,0 | - | - | - | - | - | - | - | - |
42 | 3,0 | 3,0 | 3,0 | 5,0 | 5,0 | 5,0 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,0 | 4,0 | 4,0 | 3,0 | 2,5 | 2,5 | 2,5 | - | - | - | - | - | - |
45 | 3,0 | 3,0 | 3,0 | 5,0 | 5,0 | 5,0 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,0 | 4,0 | 4,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,5 | 2,5 | - | - | - | - |
48 | 3,0 | 3,0 | 3,0 | 5,0 | 5,0 | 5,0 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,5 | 2,5 | 2,5 | - | - | - | - |
50 | 2,5 | 2,5 | 3,0 | 5,0 | 5,0 | 5,0 | 5,0 | 4,5 | 4,5 | 4,5 | 4,5 | 4,5 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,5 | 2,5 | - | - | - | - |
51 | 2,5 | 2,5 | 3,0 | 5,0 | 5,0 | 5,0 | 5,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,5 | 2,5 | - | - | - | - |
53 | 2,5 | 2,5 | 3,0 | 5,0 | 5,0 | 5,0 | 5,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,5 | 2,5 | - | - | - | - |
54 | 2,5 | 2,5 | 3,0 | 5,0 | 5,0 | 5,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | - | - | - | - |
56 | 2,5 | 2,5 | 3,0 | 5,0 | 5,0 | 5,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | - | - | - | - |
57 | 2,5 | 2,5 | 3,0 | 5,0 | 5,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | - | - | - | - |
60 | 2,5 | 2,5 | 3,0 | 5,0 | 5,0 | 5,0 | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,5 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,5 | 2,0 | 2,0 | 2,0 | - | - | - | - |
63 | 2,5 | 2,5 | 3,0 | 3,0 | 3,0 | 3,0 | 3,5 | 3,5 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,5 | 2,0 | 2,0 | 2,0 | - | - | - | - |
65 | 2,5 | 2,5 | 3,0 | 3,0 | 3,0 | 3,0 | 3,5 | 3,5 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,5 | 2,0 | 2,0 | 2,0 | - | - | - | - |
68 | 2,0 | 2,0 | 2,5 | 2,5 | 2,5 | 2,5 | 3,5 | 3,5 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | - | - | - | - |
70 | 2,0 | 2,0 | 2,5 | 2,5 | 2,5 | 2,5 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | - | - | - | - |
73 | 2,0 | 2,0 | 2,5 | 2,5 | 2,5 | 2,5 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | - | - | - | - |
75 | 2,0 | 2,0 | 2,5 | 2,5 | 2,5 | 2,5 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | 1,5 | - | - | - | - |
76 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | 3,5 | 3,5 | 3,5 | 3,0 | 3,0 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | 1,5 | - | - | - | - |
80 | - | 2,0 | 2,0 | 2,0 | 2,0 | 3,0 | 3,0 | 3,0 | 3,0 | 3,0 | 3,0 | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | 2,0 | 1,5 | - | - | - | - |
83 | - | - | - | - | - | - | - | - | - | - | - | 3,0 | 3,0 | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | 1,5 | 1,5 | 1,5 | 1,5 | 1,5 | 1,5 |
85 | - | - | - | - | - | - | - | - | - | - | - | - | - | 3,0 | 2,5 | 2,5 | 2,5 | 2,0 | 2,0 | 2,0 | 2,0 | 1,5 | 1,5 | 1,5 | 1,5 | 1,5 | 1,5 |
89 | - | - | - | - | - | - | - | - | - | - | - | - | - | 4,0 | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,5 | - | - | - | - | - | - |
90 | - | - | - | - | - | - | - | - | - | - | - | - | - | 4,0 | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,5 | - | - | - | - | - | - |
95 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,5 | - | - | - | - | - | - |
100 | - | - | - | 4,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
102 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,5 | - | - | - | - | - | - |
105 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4,0 | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,5 | - | - | - | - | - | - |
108 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4,0 | 4,0 | 3,5 | 3,5 | 3,5 | 3,5 | - | - | - | - | - | - |
110 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4,0 | 3,5 | 3,5 | 3,0 | 2,5 | - | - | - | - | - | - |
120 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4,0 | 3,5 | 3,5 | 3,0 | 2,5 | - | - | - | - | - | - |
130 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1,5 | 1,5 | 1,5 | 1,5 | 1,5 | - | - | - | - | - | - |
(Измененная редакция, Изм. N 3).
1.2. По длине трубы изготовляют:
немерные:
длиной от 0,8 до 8,0 м, с толщиной стенки 0,5-0,8 мм,
длиной от 1,0 до 8,0 м, с толщиной стенки 1,0 мм и более;
мерные, длиной не более указанной в табл.1. В каждой партии мерных труб допускается наличие 10% немерных труб;
кратные мерным, в пределах мерных, с припуском на каждый рез по 5 мм.
Предельные отклонения по длине труб (кратных и мерных) не должны превышать +15 мм.
1.3. Предельные отклонения по наружному диаметру и толщине стенки труб должны соответствовать указанным в табл.2.
Таблица 2
| Предельное отклонение |
| Предельное отклонение | ||
повышенной | обычной | повышенной | обычной | ||
От 5,8 до | ±0,20 мм | ±0,30 мм | От 0,5 до | ±0,10 мм | ±0,12 мм |
От 11 до | ±0,30 мм | ±0,45 мм | От 0,8 до | ±0,12 мм | ± 0,15 мм |
От 1,2 до | % | ± 15,0% | |||
Св. 30 | ±1,0% | ±1,5% | 1,0 | - | ±0,15 мм |
От 3,2 до 7,0 включ. | +12,5% -10,0% | ±12,5% | |||
Св. 7,0 | ±10,0% | +12,5% -10,0% |
По требованию потребителя допускается изготовлять трубы по внутреннему диаметру и толщине стенки.
Предельные отклонения по внутреннему диаметру устанавливаются по согласованию изготовителя с потребителем.
(Измененная редакция, Изм. N 1, 3).
1.4. По требованию потребителя трубы должны изготовляться с комбинированными предельными отклонениями: по диаметру - с отклонениями обычной точности, по толщине - повышенной точности.
1.5. Овальность труб с толщиной стенки 1 мм и более не должна выводить трубы за предельные отклонения по наружному диаметру.
1.6. Разностенность труб не должна выводить трубы за предельные отклонения по толщине стенки.
1.7. Кривизна на 1 м длины труб не должна превышать 1,5 мм.
Кривизна труб диаметром менее 80 мм повышенной точности изготовления не должна превышать 1 мм.