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Steel Pipes and Tubes |
ISO Standard For Mild Steel Tubes Extract From Iso-65-1981
(E) |
|
|
|
ISO STANDARD FOR MILD
STEEL TUBES [EXTRACT FROM ISO-65-2981 (E)] |
|
DN |
Designation of thread
|
Outside Diameter D mm |
Thickness (T) and masses
per unit length (M) according to the series |
|
Heavy Series |
Medium Series |
Light Series 1 |
Light Series 2 |
|
T mm |
Screwed Socketed M kg/m |
T mm |
Screwed Socketed M kg/m |
T mm |
Screwed Socketed M kg/m |
T mm |
Screwed Socketed M kg/m |
|
15 |
½ |
21.3 |
3.2 |
1.45 |
2.6 |
1.22 |
2.3 |
1.09 |
2.0 |
0.956 |
|
20 |
¾ |
26.9 |
3.2 |
1.88 |
2.6 |
1.57 |
2.3 |
1.40 |
2.3 |
1.39 |
|
26 |
1 |
33.7 |
4.0 |
2.95 |
3.2 |
2.43 |
2.9 |
2.22 |
2.6 |
2.00 |
|
32 |
1¼ |
42.4 |
4.0 |
3.82 |
3.2 |
3.13 |
2.9 |
2.85 |
2.6 |
2.57 |
|
40 |
1½ |
48.3 |
4.0 |
4.41 |
3.2 |
3.60 |
2.9 |
3.28 |
2.9 |
3.27 |
|
50 |
2 |
60.3 |
4.5 |
6.26 |
3.6 |
5.10 |
3.2 |
4.56 |
2.9 |
4.15 |
|
65 |
2½ |
76.1 |
4.5 |
8.05 |
3.6 |
6.54 |
3.2 |
5.85 |
3.2 |
5.83 |
|
80 |
3 |
88.9 |
5.0 |
10.5 |
4.0 |
8.53 |
3.6 |
7.72 |
3.2 |
6.89 |
|
100 |
4 |
114.3 |
5.4 |
14.8 |
4.5 |
12.5 |
4.0 |
11.1 |
3.6 |
10.0 |
|
125 |
5 |
139.7 |
5.4 |
18.4 |
5.0 |
17.1 |
|
|
|
|
|
150 |
6 |
165.1 |
5.4 |
21.9 |
5.0 |
20.4 |
|
|
|
|
Tolerances
|
Thickness: |
Heavy, Medium & Light Series 1 : |
+
Not Limited - 12.5% |
| |
Light Series 2 : |
+
Not Limited - 8% |
|
