Pipa casing API diprodhuksi miturut standar API 5CT. Paling asring digunakake ing proyek konstruksi lemah
kanggo encase utawa nglindhungi baris sarana saka kang rusak.
Spesifikasi:
Standar: API 5CT.
casing baja rapi lan pipa tubing: 114.3-406.4mm
casing baja gandheng lan pipa tubing: 88.9-660.4mm
Ukuran njaba: 6.0mm-219.0mm
Kekandelan tembok: 1.0mm-30mm
Dawane: maksimal 12m
Bahan: J55, K55, N80-1, N80-Q, L80-1, P110, lsp.
Sambungan thread: STC, LTC, BTC, XC lan sambungan Premium
Iki digunakake kanthi wiyar ing proyek semen kanggo dadi penahan struktural kanggo tembok sumur minyak lan gas utawa sumur sumur. Iku
dilebokake menyang bolongan sumur lan disemen ing panggonan kanggo nglindhungi formasi subsurface lan sumur saka ambruk lan
ngidini cairan pengeboran sirkulasi lan ekstraksi bisa ditindakake.
Kelas baja utama API 5CT: API 5CT J55, API 5CT K55, API 5CT N80, API 5CT L80, API 5CT P110. Iki Standar Internasional
bisa ditrapake kanggo sambungan ing ngisor iki miturut ISO 10422 utawa API Spec 5B:
casing thread bunder cendhak (STC);
casing thread bunder dawa (LC);
casing benang buttress (BC);
casing garis ekstrim (XC);
non-upset tubing (NU);
eksternal upset tubing (EU);
Integral Joint Tubing (IJ).
Kanggo sambungan kasebut, Standar Internasional iki nemtokake kahanan pangiriman teknis kanggo kopling lan proteksi benang.
Kanggo pipa sing dilindhungi dening Standar Internasional iki, ukuran, massa, kekandelan tembok, tingkat lan rampung pungkasan sing ditrapake.
Standar Internasional iki uga bisa ditrapake kanggo tubular kanthi sambungan sing ora kalebu standar ISO/API.
Komposisi kimia
sasmita | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≤ | Ni≤ | Cu≤ | 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 |
API 5CT 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 |
Sifat Mekanik
Kelas Baja |
Kekuwatan Ngasilake (Mpa) |
Kekuwatan Tarik (Mpa) |
API 5CT J55 |
379-552 |
≥517 |
API 5CT K55 |
≥655 |
≥517 |
API 5CT N80 |
552-758 |
≥689 |
API 5CT L80 |
552-655 |
≥655 |
API 5CT P110 |
758-965 |
≥862 |