We offer black steel and zinc coated welded tubes, produced in the following grade: 12X, 12Al, according to norms PN-78/H-74244 and 74200. Typical dimensions of black pipes are 3/8 – 6 inches ( 17,2×2,3-2,6 – 159×4,0-5,0 mm). Typical dimensions of zinc coated pipes are 1/2 – 4 inches ( 21,3×2,3-2,6 – 114,3×3,6-4,5 mm). Complete offer of available tubes is presented in the attached table:
| nominal diameter DN |
outside diameter DO |
wall thickness [mm] | ||||||||||||||||||||
| ISO 65 | DIN 2440 | DIN 2441 | ASTM A-53 class. A | BS 1387 smooth | NF A 49-145 |
PN-79/H-74244, DIN 1626/2458, DIN 1615/2458 |
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| inch | mm | 1 | H | S | L1 | S | H | – | H | S | H | S | L | 2,3 | 2,6 | 2,9 | 3,2 | 3,6 | 4,0 | 4,5 | 5,0 | 5,6 |
| 3/8″ | 10 | 17,1 | – | – | – | – | – | 2,31 | – | – | – | – | – | |||||||||
| 3/8″ | 10 | 17,2 | 2,9 | 2,3 | – | 2,35 | 2,9 | – | 2,9 | 2,3 | 2,9 | 2,3 | 2,0 | x | x | x | – | – | – | – | – | – |
| 1/2″ | 15 | 21,3 | 3,2 | 2,6 | 2,3 | 2,65 | 3,25 | 2,77 | 3,2 | 2,6 | 3,2 | 2,6 | 2,3 | x | x | x | x | – | – | – | – | – |
| 3/4″ | 20 | 26,7 | – | – | – | – | – | 2,87 | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| 3/4″ | 20 | 26,9 | 3,2 | 2,6 | 2,3 | 2,65 | 3,25 | – | 3,2 | 2,6 | 3,2 | 2,6 | 2,3 | x | x | x | x | – | – | – | – | – |
| 20 23 24 |
– – | – – – |
– – – |
x | x x x |
x x x |
x x x |
x | ||||||||||||||
| 1″ | 25 | 33,4 | – | – | – | – | – | 3,38 | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| 1″ | 25 | 33,7 | 4,0 | 3,2 | 2,9 | 3,25 | 4,05 | – | 4,0 | 3,2 | 4,0 | 3,2 | 2,9 | – | x | x | x | x | x | – | – | – |
| 30 | – | – | – | x | x | x | x | x | ||||||||||||||
| 1 1/4″ |
32 | 42,2 | – | – | – | – | – | 3,56 | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| 1 1/4″ |
32 | 42,4 | 4,0 | 3,2 | 2,9 | 3,25 | 4,05 | – | 4,0 | 3,2 | 4,0 | 3,2 | 2,9 | – | x | x | x | x | x | – | – | – |
| 38 | 44,5 | – | – | – | – | – | – | – | – | – | – | – | – | – | x | x | x | x | – | – | – | |
| 1 1/2″ |
40 | 48,3 | – | – | – | – | – | 3,68 | – | – | – | – | – | – | – | x | x | x | x | – | – | – |
| 1 1/2″ |
40 | 48,3 | 4,0 | 3,2 | 2,9 | 3,25 | 4,05 | – | 4,0 | 3,2 | 4,0 | 3,2 | 2,9 | – | – | x | x | x | x | – | – | – |
| 45 51 |
– – |
– – |
– – |
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| 2″ | 50 | 60,3 | – | – | – | – | – | 3,91 | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| 2″ | 50 | 60,3 | 4,5 | 3,6 | 3,2 | 3,65 | 4,5 | – | 4,5 | 3,2 | 4,5 | 3,6 | 3,2 | – | – | – | x | x | x | x | x | – |
| 63 | – | – | – | x | x | x | x | x | ||||||||||||||
| 2 1/2″ |
65 | 5,16 | – | – | – | |||||||||||||||||
| 2 1/2″ |
70 | 76,1 | 4,5 | 3,6 | 3,2 | 3,65 | 4,5 | – | 4,5 | 3,6 | 4,5 | 3,6 | 3,2 | – | – | – | x | x | x | x | x | – |
| 3″ | 80 | 88,9 | 5,0 | 4,0 | 3,6 | – | – | – | 5,0 | 4,0 | – | – | – | – | – | – | – | x | x | x | x | x |
| 3″ | 80 | 88,9 | 4,05 | 4,85 | – | 4,9 | 4,0 | – | ||||||||||||||
| 3 1/2″ |
90 | 101,9 | – | – | – | – | 5,74 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| 3 1/2″ |
90 | 101,6 | – | – | – | – | – | – | – | – | 4,9 | 4,0 | 3,6 | – | – | – | – | x | x | x | x | x |
| 100 | 108 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | x | x | x | x | |
| 4″ | 100 | 114,3 | – | – | – | – | – | 6,02 | 5,4 | – | – | – | – | – | – | – | x | x | x | x | ||
| 4″ | 114,6 | 4,5 | 4,0 | 4,5 | 4,5 | 5,4 | 5,4 | 4,5 | – | |||||||||||||
| 125 | 133,0 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | x | x | x | x | |
| 5″ | 130 | – | – | – | – | – | – | 6,55 | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| 5″ | 130 | 139,7 | 5,4 | 5,0 | – | 4,85 | 5,4 | – | 5,4 | 5,0 | 5,4 | 4,5 | – | – | – | – | – | – | x | x | x | x |
| 150 | 159,0 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | x | x | x | x | |
| 6″ | 4,85 | 5,4 | – | – | – | |||||||||||||||||
| 150 | 5,4 | 5,0 | – | – | – | – | 5,4 | 5,0 | – | – | – | – | – | – | – | – | – | |||||
| 6″ | 160 | 168,3 | – | – | – | – | – | – | 7,11 | – | – | – | – | – | – | – | x | x | x | |||
H – heavy pipes
S – medium pipes
L – light pipes
X – pipes produced according to DIN 1626/2458, DIN 1615/2458 and PN-79/H-74244