AS 1074 (NZS 1074)bututun ƙarfe ne na Australiya (New Zealand) gabaɗaya da kayan aiki.
Ya shafi bututun ƙarfe da aka zana da kayan aiki da aka ƙayyade a cikin AS 1722.1, da bututun ƙarfe mai ƙarewa daga DN 8 zuwa DN 150.
Hakanan an ƙayyade kaurin bango guda uku na bututun ƙarfe, haske, matsakaici, da nauyi.
| Daidaitawa | P | S | CE |
| AS 1074 (NZS 1074) | 0.045% max | 0.045% max | 0.4 max |
CE gajarta ce don daidai da carbon, wanda ke buƙatar samun ta ta lissafi.
CE = C + Mn/6
Ƙarfin yawan amfanin ƙasa: 195 MPa;
Ƙarfin ƙarfi mafi ƙarancin: 320 - 460 MPa;
Tsawaitawa: ba kasa da 20%.
Ya kamata a gwada kowane bututun ƙarfe ta hanyar zaɓar ɗayan hanyoyin gwajin ƙarfin bututun ƙarfe.
Gwajin Hydrostatic
Bututun ƙarfe yana kula da ƙimar matsa lamba na 5 MPa na dogon lokaci mai tsayi ba tare da yabo ba.
Gwajin mara lalacewa
Gwajin Eddy na yanzu yana daidai da AS 1074 Karin Bayani B.
Gwajin Ultrasonic daidai da AS 1074 Shafi C.
Makin kauri na bango: haske, matsakaici, da nauyi.
Makin kauri na bango na bututun ƙarfe ya bambanta kuma haka ma daidaitattun haƙƙin diamita na waje.A ƙasa akwai tebur na ma'aunin waɗannan maki uku na bututun ƙarfe da madaidaicin OD tolerances.
Girman bututun ƙarfe - Haske
| Girman mara kyau | Diamita na waje mm | Kauri mm | Mass na baki tube kg/m | ||
| min | max | Ƙarshe na fili ko maras kyau | Cire da soket | ||
| DN 8 | 13.2 | 13.6 | 1.8 | 0.515 | 0.519 |
| DN 10 | 16.7 | 17.1 | 1.8 | 0.67 | 0.676 |
| DN 15 | 21.0 | 21.4 | 2.0 | 0.947 | 0.956 |
| DN 20 | 26.4 | 26.9 | 2.3 | 1.38 | 1.39 |
| DN 25 | 33.2 | 33.8 | 2.6 | 1.98 | 2.00 |
| DN 32 | 41.9 | 42.5 | 2.6 | 2.54 | 2.57 |
| DN 40 | 47.8 | 48.4 | 2.9 | 3.23 | 3.27 |
| DN 50 | 59.6 | 60.2 | 2.9 | 4.08 | 4.15 |
| DN 65 | 75.2 | 76.0 | 3.2 | 5.71 | 5.83 |
| DN 80 | 87.9 | 88.7 | 3.2 | 6.72 | 6.89 |
| Farashin DN100 | 113.0 | 113.9 | 3.6 | 9.75 | 10.0 |
Girman bututun ƙarfe - Matsakaici
| Girman mara kyau | Diamita na waje mm | Kauri mm | Mass na baki tube kg/m | ||
| min | max | Ƙarshe na fili ko maras kyau | Cire da soket | ||
| DN 8 | 13.3 | 13.9 | 2.3 | 0.641 | 0.645 |
| DN 10 | 16.8 | 17.4 | 2.3 | 0.839 | 0.845 |
| DN 15 | 21.1 | 21.7 | 2.6 | 1.21 | 1.22 |
| DN 20 | 26.6 | 27.2 | 2.6 | 1.56 | 1.57 |
| DN 25 | 33.4 | 34.2 | 3.2 | 2.41 | 2.43 |
| DN 32 | 42.1 | 42.9 | 3.2 | 3.10 | 3.13 |
| DN 40 | 48.0 | 48.8 | 3.2 | 3.57 | 3.61 |
| DN 50 | 59.8 | 60.8 | 3.6 | 5.03 | 5.10 |
| DN 65 | 75.4 | 76.6 | 3.6 | 6.43 | 6.55 |
| DN 80 | 88.1 | 89.5 | 4.0 | 8.37 | 8.54 |
| Farashin DN100 | 113.3 | 114.9 | 4.5 | 12.2 | 12.5 |
| Farashin DN125 | 138.7 | 140.6 | 5.0 | 16.6 | 17.1 |
| Farashin DN150 | 164.1 | 166.1 | 5.0 | 19.7 | 20.3 |
Girman bututun ƙarfe - Nauyi
| Girman mara kyau | Diamita na waje mm | Kauri mm | Mass na baki tube kg/m | ||
| min | max | Ƙarshe na fili ko maras kyau | Cire da soket | ||
| DN 8 | 13.3 | 13.9 | 2.9 | 0.765 | 0.769 |
| DN 10 | 16.8 | 17.4 | 2.9 | 1.02 | 1.03 |
| DN 15 | 21.1 | 21.7 | 3.2 | 1.44 | 1.45 |
| DN 20 | 26.6 | 27.2 | 3.2 | 1.87 | 1.88 |
| DN 25 | 33.4 | 34.2 | 4.0 | 2.94 | 2.96 |
| DN 32 | 42.1 | 42.9 | 4.0 | 3.80 | 3.83 |
| DN 40 | 48.0 | 48.8 | 4.0 | 4.38 | 4.42 |
| DN 50 | 59.8 | 60.8 | 4.5 | 6.19 | 6.26 |
| DN 65 | 75.4 | 76.6 | 4.5 | 7.93 | 8.05 |
| DN 80 | 88.1 | 89.5 | 5.0 | 10.3 | 10.5 |
| Farashin DN100 | 113.3 | 114.9 | 5.4 | 14.5 | 14.8 |
| Farashin DN125 | 138.7 | 140.6 | 5.4 | 17.9 | 18.4 |
| Farashin DN150 | 164.1 | 166.1 | 5.4 | 21.3 | 21.9 |
| Kauri | Haske waldadden bututu | min 92% |
| Matsakaici da nauyi welded bututu | min 90% | |
| Matsakaici da nauyi bututu marasa sumul | min 87.5% | |
| Mass | jimlar tsawon≥150m | ± 4% |
| Bututun karfe daya | 92% - 110% | |
| tsayi | Daidaitaccen tsayi | 6.50 ± 0.08 m |
| Daidai tsayi | 0 - +8 mm |
Idan AS 1074 karfe bututu ne galvanized, ya kamata ya kasance daidai da AS 1650.
Fuskar bututun galvanized zai kasance mai ci gaba, mai santsi da rarraba daidai gwargwado, kuma ba tare da lahani wanda zai tsoma baki tare da amfani ba.
Bututu da zaren za a yi galvanized kafin zaren.
Za a bambanta tubes da launi a gefe ɗaya kamar haka:
| Tube | Launi |
| Bututu mai haske | Brown |
| Matsakaici bututu | Blue |
| Tubu mai nauyi | Ja |
Mu ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun masana'anta ce kuma masu siyarwa daga China, har ila yau, ƙwararrun ƙwararrun bututun ƙarfe mara nauyi, suna ba ku nau'ikan mafita na bututun ƙarfe!
