Kayayyaki
ERW Carbon Karfe Black&HDG Pipe
Siga
| Diamater na al'ada | OD | Kaurin bango | |||
| L | M | H | |||
| NB | INCH | MM | MM | MM | MM |
| 65 | 2-1/2 | 76 | 2.3 | 3.2 | 5.2 |
| 80 | 3 | 88.9 | 2.6 | 4.8 | 5.5 |
| 90 | 3-1/2 | 101.6 | 2.6 | 3.2 | 5.7 |
| 100 | 4 | 114.3 | 3.2 | 4.8 | 6.0 |
| 125 | 5 | 139.7 | 3 | 3.5 | 6.6 |
| 150 | 6 | 165.1 | 4.8 | 6.4 | 7.1 |
| 200 | 8 | 219.1 | 4.8 | 6.4 | 8.2 |
| 250 | 10 | 273.1 | 4.8 | 6.4 | 9.3 |
| 300 | 12 | 323.9 | 6.4 | 9.5 | 12.7 |
| 350 | 14 | 355.6 | 6.4 | 9.5 | 12.7 |
| 400 | 16 | 406.4 | 6.4 | 9.5 | 12.7 |
Raba
Dangane da hanyoyin samarwa, ana iya raba bututun ƙarfe zuwa nau'i biyu: bututun ƙarfe mara ƙarfi da bututun ƙarfe na walda.welded karfe bututu ana magana a matsayin welded bututu a takaice.
Za a iya raba bututun ƙarfe marasa ƙarfi zuwa bututu masu zafi, bututu masu sanyi, daidaitaccen bututun ƙarfe, bututu mai zafi, bututu mai sanyi, da bututun da aka fitar bisa ga hanyoyin samarwa.
Ana yin bututun ƙarfe marasa ƙarfi da ƙarfe mai inganci ko ƙarfe na ƙarfe, kuma ana iya yin birgima mai zafi ko kuma birgima (jawo).
An raba bututun ƙarfe na walda zuwa tanderu, bututun walda, da bututun walda na lantarki, da bututun walda na baka na atomatik saboda tsarin waldansu daban-daban.Saboda nau'o'in walda daban-daban, an raba su zuwa bututu masu walƙiya madaidaiciya da kuma karkace bututu.Saboda sifofin su na ƙarshe, an ƙara raba su zuwa bututu masu waldaran madauwari da bututu masu siffa ta musamman (square, flat, da sauransu).
Ana samar da bututun ƙarfe na walda ta hanyar walda faranti waɗanda aka yi birgima zuwa sifofin tubular tare da gindi ko karkace.Dangane da hanyoyin kera, an kuma raba su zuwa bututun ƙarfe na walda don safarar ruwa mai ƙarancin ƙarfi, bututun ƙarfe mai walda, bututun ƙarfe kai tsaye, da bututun walda na lantarki.Ana iya amfani da bututun ƙarfe marasa ƙarfi a masana'antu daban-daban kamar bututun iskar gas da bututun iskar gas.Ana iya amfani da bututun welded don bututun ruwa, bututun iskar gas, bututun dumama, bututun lantarki, da sauransu.
