Ana samar da bututun casing na API bisa ga ma'aunin API 5CT. An fi amfani da shi a ayyukan gine-gine na karkashin kasa
don rufe ko kare layukan masu amfani daga lalacewa.
Ƙayyadaddun bayanai:
Standard: API 5CT.
sumul karfe casing da tubing bututu: 114.3-406.4mm
welded karfe casing da tubing bututu: 88.9-660.4mm
Girman Waje: 6.0mm-219.0mm
Kaurin bango: 1.0mm-30 mm
Tsawo: max 12m
Material: J55, K55, N80-1, N80-Q, L80-1, P110, da dai sauransu.
Haɗin zaren: STC, LTC, BTC, XC da haɗin Premium
Ana amfani da shi sosai a cikin ayyukan siminti don yin aiki a matsayin mai riƙe da bangon rijiyoyin mai da iskar gas ko rijiya. Yana da
an saka shi a cikin rijiya da siminti a wuri don kare duk abubuwan da ke ƙarƙashin ƙasa da rijiyar daga rushewa
ba da damar ruwa mai hakowa ya zagaya da hakar ya faru.
Babban darajar ƙarfe na API 5CT: API 5CT J55, API 5CT K55, API 5CT N80, API 5CT L80, API 5CT P110. Wannan Matsayin Duniya
Ana amfani da waɗannan hanyoyin haɗin kai daidai da ISO 10422 ko API Spec 5B:
gajeren zaren casing (STC);
dogon zagaye zaren casing (LC);
buttress thread casing (BC);
matsananci-line casing (XC);
bututun da ba sa damuwa (NU);
bututun tashin hankali na waje (EU);
tubing haɗin gwiwa (IJ).
Don irin waɗannan hanyoyin haɗin gwiwa, wannan Matsayin Ƙasashen Duniya yana ƙayyadaddun yanayin isar da fasaha don haɗawa da kariyar zaren.
Don bututun da wannan ƙa'idar ta ƙasa da ƙasa ke rufe, an ayyana masu girma dabam, ɗimbin yawa, kaurin bango, maki da ƙarshen ƙarewa.
Hakanan za'a iya amfani da wannan ƙa'idar ta ƙasa da ƙasa zuwa tubulars tare da haɗin da ba a rufe su ta ka'idodin ISO/ API.
Haɗin Sinadari
| Daraja | C≤ | Si ≤ | Mn≤ | P≤ | S≤ | Cr≤ | Ni ≤ | Ku ≤ | Mo≤ | V≤ | Als≤ |
| API 5CT J55 | 0.34-0.39 |
0.20-0.35 |
1.25-1.50 |
0.020 |
0.015 |
0.15 |
0.20 |
0.20 |
/ |
/ |
0.020 |
| API 5CT K55 | 0.34-0.39 |
0.20-0.35 |
1.25-1.50 |
0.020 |
0.015 |
0.15 |
0.20 |
0.20 |
/ |
/ |
0.020 |
| API 5CT N80 | 0.34-0.38 |
0.20-0.35 |
1.45-1.70 |
0.020 |
0.015 |
0.15 |
/ |
/ |
/ |
0.11-0.16 |
0.020 |
| Saukewa: API5CT L80 | 0.15-0.22 |
1.00 |
0.25-1.00 |
0.020 |
0.010 |
12.0-14.0 |
0.20 |
0.20 |
/ |
/ |
0.020 |
| API 5CT J P110 | 0.26-035 |
0.17-0.37 |
0.40-0.70 |
0.020 |
0.010 |
0.80-1.10 |
0.20 |
0.20 |
0.15-0.25 |
0.08 |
0.020 |
Kayayyakin Injini
|
Karfe daraja |
Ƙarfin Haɓaka (Mpa) |
Ƙarfin Tensile (Mpa) |
|
API 5CT J55 |
379-552 |
≥517 |
|
API 5CT K55 |
≥ 655 |
≥517 |
|
API 5CT N80 |
552-758 |
≥689 |
|
Saukewa: API5CT L80 |
552-655 |
≥ 655 |
|
API 5CT P110 |
758-965 |
≥862 |
