| Math: | Wedi'i Weldio |
|---|---|
| Techneg: | ERW |
| Deunydd: | Dur Carbon |
| Triniaeth arwyneb: | Du/Galfanedig/Paentio |
| Defnydd: | Cludiant Piblinell, Pibell Boeler, Pibell Hydrolig / Modurol, Bwyd / Diod / Cynhyrchion Llaeth, Diwydiant Peiriannau, Diwydiant Cemegol, Adeiladu ac Addurno, Pwrpas Arbennig |
| Siâp Adran: | Rownd |
Pibell ERW:
DN | A | B | C | ||||||
Diamedr allanol | trwch wal | Diamedr allanol | Trwch wal | Diamedr allanol | Trwch wal | ||||
max | min | max | min | max | min | ||||
15 | 21.4 | 21.0 | 2.0 | 21.7 | 21.1 | 2.6 | 21.7 | 21.1 | 3.2 |
20 | 26.9 | 26.4 | 2.3 | 27.2 | 26.6 | 2.6 | 27.2 | 26.6 | 3.2 |
25 | 33.8 | 33.2 | 2.6 | 34.2 | 33.4 | 3.2 | 34.2 | 33.4 | 4.0 |
32 | 42.5 | 41.9 | 2.6 | 42.9 | 42.1 | 3.2 | 42.9 | 42.1 | 4.0 |
40 | 48.4 | 47.8 | 2.9 | 48.8 | 48.0 | 3.2 | 48.8 | 18.0 | 4.0 |
50 | 60.2 | 59.6 | 2.9 | 60.8 | 59.8 | 3.6 | 60.8 | 59.8 | 4.5 |
65 | 76.0 | 75.2 | 3.2 | 76.6 | 75.4 | 3.6 | 76.6 | 75.4 | 4.5 |
80 | 88.7 | 87.9 | 3.2 | 89.5 | 88.1 | 4.0 | 89.5 | 88.1 | 5.0 |
100 | 113.9 | 113.0 | 3.6 | 114.9 | 113.1 | 4.5 | 114.9 | 113.3 | 5.4 |
125 | 141.3 | 141.0 | 4.5 | 140.6 | 138.7 | 5.0 | 140.6 | 138.7 | 5.4 |
150 | 168.3 | 168.0 | 5.0 | 166.1 | 164.1 | 5.0 | 166.1 | 164.1 | 5.4 |
Pibell ddur cyn galfanedig:
| Diamedr Allanol | Trwch wal | Hyd | |
| Modfedd | mm | mm | metr |
1/2" | 20mm | {{0}}.8mm-2.0mm | 0.3m-12m |
3/4" | 25mm | {{0}}.8mm-2.0mm | 0.3m-12m |
1" | 32mm | {{0}}.8mm-2.0mm | 0.3m-12m |
1-1/4" | 40mm | {{0}}.8mm-2.0mm | 0.3m-12m |
1-1/2" | 47mm | 1.0mm-2.5mm | 0.3m-12m |
2" | 60mm | 1.0mm-2.5mm | 0.3m-12m |
2-1/2" | 75mm | 1.0mm-2.5mm | 0.3m-12m |
3" | 88mm | 1.0mm-2.5mm | 0.3m-12m |
4" | 113mm | 1.0mm-2.5mm | 0.3m-12m |
5" | 140mm | 1.0mm-2.5mm | 0.3m-12m |
6" | 165mm | 1.0mm-2.5mm | 0.3m-12m |
Tagiau poblogaidd: pibell gron haearn galfanedig dip poeth / tiwbiau dur erw galfanedig / pibellau dur carbon tiwbaidd ar gyfer adeiladu adeiladau tŷ gwydr, a wnaed yn Tsieina, gweithgynhyrchwyr, cyflenwyr
