SPECIFICATIONS OF BLACK AND GALVANIZED STEEL TUBES CONFORMING TO EN:10255 |
Nominal Bore (NB) |
Specified outside diameter |
Type |
Outside Diameter |
Wall Thickness |
Mass per unit length of bare tube |
Minimum |
Maximum |
Plain End |
Screwed & Socketed |
mm/inches |
mm |
|
mm |
mm |
mm |
Kg/m |
Kg/m |
15 (1/2") |
21.30 |
L1 |
21.00 |
21.70 |
2.30 |
1.080 |
1.090 |
L2 |
21.00 |
21.40 |
2.00 |
0.947 |
0.956 |
L |
21.00 |
21.70 |
2.30 |
1.080 |
1.090 |
M |
21.00 |
21.80 |
2.60 |
1.210 |
1.220 |
H |
21.00 |
21.80 |
3.20 |
1.440 |
1.450 |
20 (3/4") |
26.90 |
L1 |
26.40 |
27.10 |
2.30 |
1.390 |
1.400 |
L2 |
26.40 |
26.90 |
2.30 |
1.380 |
1.390 |
L |
27.10 |
26.40 |
2.30 |
1.400 |
1.410 |
M |
26.50 |
27.30 |
2.60 |
1.560 |
1.570 |
H |
26.50 |
27.30 |
3.20 |
1.870 |
1.880 |
25 (1") |
33.70 |
L1 |
33.20 |
34.00 |
2.90 |
2.200 |
2.220 |
L2 |
33.20 |
33.80 |
2.60 |
1.980 |
2.000 |
L |
33.20 |
34.00 |
2.90 |
2.200 |
2.220 |
M |
33.30 |
34.20 |
3.20 |
2.410 |
2.430 |
H |
33.30 |
34.20 |
4.00 |
2.930 |
2.950 |
32 (1-1/4") |
42.40 |
L1 |
41.90 |
42.70 |
2.90 |
2.820 |
2.850 |
L2 |
41.90 |
42.50 |
2.60 |
2.540 |
2.570 |
L |
41.90 |
42.70 |
2.90 |
2.820 |
2.850 |
M |
42.00 |
42.90 |
3.20 |
3.100 |
3.130 |
H |
42.00 |
42.90 |
4.00 |
3.790 |
3.820 |
40 (1-1/2") |
48.30 |
L1 |
47.80 |
48.60 |
2.90 |
3.240 |
3.280 |
L2 |
47.80 |
48.40 |
2.90 |
3.230 |
3.270 |
L |
47.80 |
48.60 |
2.90 |
3.250 |
3.290 |
M |
47.90 |
48.80 |
3.20 |
3.560 |
3.600 |
H |
47.90 |
48.80 |
4.00 |
4.370 |
4.410 |
50 (2") |
60.30 |
L1 |
59.60 |
60.70 |
3.20 |
4.490 |
4.560 |
L2 |
59.60 |
60.20 |
2.90 |
4.080 |
4.150 |
L |
59.60 |
60.70 |
3.20 |
4.510 |
4.580 |
M |
59.70 |
60.80 |
3.60 |
5.030 |
5.100 |
H |
59.70 |
60.80 |
4.50 |
6.190 |
6.260 |
65 (2-1/2") |
76.10 |
L1 |
75.20 |
76.30 |
3.20 |
5.730 |
5.850 |
L2 |
75.20 |
76.00 |
3.20 |
5.710 |
5.830 |
L |
75.20 |
76.00 |
3.20 |
5.750 |
5.870 |
M |
75.30 |
76.60 |
3.60 |
6.420 |
6.540 |
H |
75.30 |
76.60 |
4.50 |
7.930 |
8.050 |
80 (3") |
88.90 |
L1 |
87.90 |
89.40 |
3.60 |
7.550 |
7.720 |
L2 |
87.90 |
88.70 |
3.20 |
6.720 |
6.890 |
L |
87.90 |
88.70 |
3.20 |
6.760 |
6.930 |
M |
88.00 |
89.50 |
4.00 |
8.360 |
8.530 |
H |
88.00 |
89.50 |
5.00 |
10.300 |
10.500 |
100 (4") |
114.30 |
L1 |
113.00 |
114.90 |
4.00 |
10.800 |
11.100 |
L2 |
113.00 |
113.90 |
3.60 |
9.750 |
10.000 |
L |
113.00 |
113.90 |
3.60 |
9.830 |
10.100 |
M |
113.10 |
115.00 |
4.50 |
12.200 |
12.500 |
H |
113.10 |
115.00 |
5.40 |
14.500 |
14.800 |
125 (5") |
139.70 |
L |
138.50 |
140.80 |
4.50 |
15.000 |
15.500 |
M |
138.50 |
140.80 |
5.00 |
16.600 |
17.100 |
H |
138.50 |
140.80 |
5.40 |
17.900 |
18.400 |
150 (6") |
165.10 |
L |
163.90 |
166.50 |
4.50 |
17.800 |
18.400 |
M |
163.90 |
166.50 |
4.80 |
18.900 |
19.500 |
H |
163.90 |
166.50 |
5.40 |
21.300 |
21.900 |
STANDARD TOLERANCES |
WALL THICKNESS |
**** |
± 10% |
For L, M & H series |
**** |
− 8% |
For L1 & L2 with the plus tolerance limited by the mass tolerance |
MASS TOLERANCE |
**** |
± 7.5% |
On bundles of 10 tons or more for L, M & H |
**** |
± 10% & − 8% |
For individual tubes for L1 & L2 |
LENGTH |
**** |
+150mm & −50mm |
For standard lengths of 6m or 6.40m |
**** |
upto 10% of supply quantity < min length ordered, but not shorter than 75% of minimum range length |
For random length of 4m ≤ length ≤ 16m, with a range of 2m per order item. |
**** |
+10mm & −0mm |
For exact length ≤ 6m |
**** |
+15mm & −0mm |
For exact length of 6m < length ≤ 12m |
**** |
+by agreement & −0mm |
For exact length > 12m |