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seamless Pipes & seamless tubes
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Seamless
Pipes & Seamless Tubes: A heated
billet is brought into contact with tapered
revolving rolls in such a way that the
billed is pulled into the space allowed
between the rolls. The mandrel is placed in
the space. The soft centre of the billet
makes it possible for the rolls to draw the
billet over the mandrel, producing a hollow
shell. When the billet has entirely passed
over the mandrel, it is in the form of a
thick walled seamless tube. The heavy walled
tube is then passed to a rolling mill which
reduces the tube to piping of proper outside
diamter and wall thickness. Depending upon
the process condition (temperature),
seamless tube/pipes is termed as Hot Finish
Seamless or cold drawn seamless as the term
implies.
Apart from above tubes and pipes can be
formed by other processes, like forged,
tunned, bored, etc depending upon the
requirement.
Outside
Diameter/
Thickness |
in. |
1/8 |
5/32 |
3/16 |
7/32 |
1/4 |
9/32 |
|
0.125 |
0.156 |
0.188 |
0.219 |
0.250 |
0.281 |
|
in. |
mm |
3.175 |
3.969 |
4.763 |
5.556 |
6.350 |
7.144 |
|
1
7/16 |
36.51 |
0.796 |
0.970 |
1.140 |
1.295 |
1.440 |
1.557 |
|
1
1/2 |
38.10 |
0.834 |
1.017 |
1.196 |
1.361 |
1.516 |
1.661 |
|
1
5/8 |
41.28 |
0.909 |
1.111 |
1.310 |
1.493 |
1.667 |
1.838 |
|
1
11/16 |
42.86 |
0.948 |
1.159 |
1.368 |
1.560 |
1.744 |
1.918 |
|
1
3/4 |
44.45 |
0.985 |
1.206 |
1.424 |
1.626 |
1.819 |
2.002 |
|
1
7/8 |
47.63 |
1.061 |
1.301 |
1.538 |
1.759 |
1.970 |
2.172 |
|
1
29/32 |
48.42 |
1.080 |
1.324 |
1.566 |
1.792 |
2.008 |
2.215 |
|
2 |
50.80 |
1.137 |
1.395 |
1.652 |
1.892 |
2.122 |
2.343 |
|
2
1/8 |
53.98 |
1.213 |
1.490 |
1.766 |
2.024 |
2.273 |
2.513 |
|
2
5/32 |
54.77 |
1.231 |
1.508 |
1.794 |
2.057 |
2.311 |
2.555 |
|
2
1/4 |
57.15 |
1.288 |
1.584 |
1.880 |
2.157 |
2.425 |
2.683 |
|
2
3/8 |
60.33 |
1.364 |
1.679 |
1.994 |
2.290 |
2.577 |
2.854 |
|
2
1/2 |
63.50 |
1.440 |
1.773 |
2.108 |
2.423 |
2.728 |
3.024 |
|
2
5/8 |
66.68 |
1.516 |
1.868 |
2.222 |
2.556 |
2.880 |
3.165 |
|
2
3/4 |
69.85 |
1.591 |
1.693 |
2.336 |
2.688 |
3.031 |
3.365 |
|
2
7/8 |
73.03 |
1.667 |
2.057 |
2.450 |
2.821 |
3.183 |
3.538 |
|
3 |
76.20 |
1.743 |
2.152 |
2.564 |
2.954 |
3.334 |
3.706 |
|
3
1/4 |
82.55 |
1.895 |
2.341 |
3.792 |
3.219 |
3.638 |
4.046 |
|
3
1/2 |
88.90 |
2.046 |
2.530 |
3.020 |
3.485 |
3.941 |
4.387 |
|
3
3/4 |
95.25 |
2.198 |
2.719 |
3.248 |
3.750 |
4.244 |
4.728 |
|
4 |
101.60 |
2.349 |
2.908 |
3.476 |
4.016 |
4.547 |
5.068 |
|
4
1/4 |
107.95 |
2.501 |
3.098 |
3.704 |
4.282 |
4.850 |
5.409 |
|
4
1/2 |
114.30 |
2.652 |
3.287 |
3.932 |
4.547 |
5.158 |
5.750 |
|
4
3/4 |
120.65 |
2.804 |
3.476 |
4.160 |
4.813 |
5.456 |
6.091 |
|
5 |
127.00 |
2.955 |
3.665 |
4.388 |
5.078 |
5.759 |
6.431 |
|
5
3/32 |
129.38 |
3.012 |
3.736 |
4.473 |
5.178 |
5.873 |
6.559 |
|
5
1/4 |
133.35 |
3.107 |
3.854 |
4.616 |
5.344 |
6.063 |
6.772 |
|
5
3/8 |
136.53 |
3.183 |
3.949 |
4.730 |
5.476 |
6.214 |
6.942 |
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5
1/2 |
139.70 |
3.259 |
4.043 |
4.843 |
5.609 |
6.366 |
7.113 |
|
5
9/16 |
141.28 |
3.297 |
4.091 |
4.901 |
5.676 |
6.442 |
7.199 |
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5
3/4 |
146.05 |
3.410 |
4.232 |
5.071 |
5.875 |
6.669 |
7.453 |
|
6 |
152.40 |
3.562 |
4.422 |
5.299 |
6.140 |
6.972 |
7.794 |
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Outside
Diameter /
Thickness |
in. |
5/16 |
11/32 |
3/8 |
13/32 |
7/16 |
15/32 |
1/2 |
|
0.313 |
0.344 |
0.375 |
0.406 |
0.438 |
0.469 |
0.5 |
|
in. |
mm |
7.938 |
8.732 |
9.525 |
10.319 |
11.113 |
11.907 |
12.700 |
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1 7/16 |
36.51 |
1.708 |
1.825 |
1.933 |
2.032 |
2.124 |
2.204 |
2.275 |
|
1 1/2 |
38.10 |
1.802 |
1.929 |
2.046 |
2.354 |
2.256 |
2.345 |
2.425 |
|
1 5/8 |
41.28 |
1.992 |
2.137 |
2.273 |
2.400 |
2.522 |
2.629 |
2.728 |
|
1 11/16 |
42.86 |
2.087 |
2.242 |
2.388 |
2.524 |
2.655 |
2.773 |
2.881 |
|
1 3/4 |
44.45 |
2.181 |
2.346 |
2.501 |
2.646 |
2.787 |
2.914 |
3.031 |
|
1 7/8 |
47.63 |
2.371 |
2.554 |
2.728 |
2.863 |
3.053 |
3.198 |
3.334 |
|
1 29/32 |
48.42 |
2.418 |
2.606 |
2.785 |
2.954 |
3.118 |
3.269 |
3.410 |
|
2 |
50.80 |
2.561 |
2.763 |
2.955 |
3.139 |
3.318 |
3.482 |
3.638 |
|
2 1/8 |
53.98 |
2.751 |
2.971 |
3.183 |
3.385 |
3.584 |
3.767 |
3.941 |
|
2 5/32 |
54.77 |
2.798 |
3.023 |
3.239 |
3.446 |
3.650 |
3.837 |
4.016 |
|
2 1/4 |
57.15 |
2.940 |
3.180 |
3.410 |
3.631 |
3.849 |
4.051 |
4.244 |
|
2 3/8 |
60.33 |
3.130 |
3.389 |
3.638 |
3.877 |
4.115 |
4.335 |
4.547 |
|
2 1/2 |
63.50 |
3.320 |
3.597 |
3.865 |
4.123 |
4.380 |
4.620 |
4.850 |
|
2 5/8 |
66.68 |
3.510 |
3.806 |
4.092 |
4.369 |
4.649 |
4.904 |
5.153 |
|
2 3/4 |
69.85 |
3.699 |
4.014 |
4.320 |
4.616 |
4.911 |
5.188 |
5.456 |
|
2 7/8 |
73.03 |
3.889 |
4.223 |
4.547 |
4.862 |
5.177 |
5.453 |
5.759 |
|
3 |
76.20 |
4.079 |
4.431 |
4.774 |
5.108 |
5.442 |
5.757 |
6.063 |
|
3 1/4 |
82.55 |
4.459 |
4.848 |
5.229 |
5.600 |
5.974 |
6.326 |
6.669 |
|
3 1/2 |
88.90 |
4.838 |
5.265 |
5.684 |
6.192 |
6.505 |
6.894 |
7.275 |
|
3 3/4 |
95.25 |
5.218 |
5.683 |
6.138 |
6.585 |
7.036 |
7.463 |
7.881 |
|
4 |
101.60 |
5.597 |
6.100 |
6.593 |
7.077 |
7.597 |
8.032 |
8.488 |
|
4 1/4 |
107.95 |
5.977 |
6.517 |
7.048 |
7.569 |
8.098 |
8.600 |
9.094 |
|
4 1/2 |
114.30 |
6.356 |
6.934 |
7.520 |
8.061 |
8.629 |
9.169 |
9.700 |
|
4 3/4 |
120.65 |
6.736 |
7.351 |
7.957 |
8.554 |
9.160 |
9.738 |
10.306 |
|
5 |
127.00 |
7.115 |
7.768 |
8.412 |
9.046 |
9.691 |
10.306 |
10.913 |
|
5 3/32 |
129.38 |
7.258 |
7.925 |
8.583 |
9.231 |
9.891 |
10.520 |
11.140 |
|
5 1/4 |
133.35 |
7.495 |
8.185 |
8.866 |
9.538 |
10.222 |
10.875 |
11.519 |
|
5 3/8 |
136.53 |
7.684 |
8.394 |
9.094 |
9.784 |
10.488 |
11.159 |
11.822 |
|
5 1/2 |
139.70 |
7.874 |
8.602 |
9.321 |
10.031 |
10.753 |
11.444 |
12.125 |
|
5 9/16 |
141.28 |
2.970 |
8.707 |
9.436 |
10.155 |
10.887 |
11.587 |
12.278 |
|
5 3/4 |
146.05 |
8.254 |
9.019 |
9.776 |
10.523 |
11.284 |
12.012 |
12.731 |
|
6 |
152.40 |
8.633 |
9.436 |
10.230 |
11.015 |
11.815 |
12.581 |
13.338 |
For More Details or
placing an order Contact Us on:
Tel: +91-22-23482114 / 5 / 6 / 7 / 8,
66310811 / 2/ 3
Fax: +91-22-23486410, 66365555
Email: onlinesales@tubeweld.com |
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