Casing & Tubing
Casing & Tubing
Standard：
API SPEC 5CT Standard of American Petroleum Institute Steel Grade:
J55, K55, N80, L80, N80-1, N80Q P110 etc．Diamensional tolerances:
Types of steel tubes Outer diameter Wall thickness
Cold-rolled tubes Tube sizes
(mm) Tolerances(mm) Tolerances(mm)
＜114.3 ±0.79 －12.5％
≥114.3 －0.5％，＋1％
Mechanical properties：
Standard codes Models of steel tubes Tensite strength（MPa） Yield strength（MPa） Elongation（％） Hardness
API SPEC 5CT J55 ≥517 379～552 check the table
K55 ≥517 ≥655
N80 ≥689 552～758
L80(13Cr) ≥655 552～655 ≤241HB
P110 ≥862 758～965
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Valves |
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Check Valve
Usually used for Kill Manifold
The sealing face of core and seat is overlaying-welded with hard alloy with erosion and corr... |
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Drill Pipe |
Standard: API 5D
Specification: OD: 2 3/8”-6 5/8”
Steel Grade: E75, X95, G105, S135
Internal Coating: TK34, TC2000, TC3000
Hardbanding: ARNCO 1... |
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Line pipes |
Line pipes
Standard: According to API Spec 5L standard.
Use: Used as oxygen, water, and oil delivery pipe in oil and natural gas industry
Steel gra... |
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Substructure |
Substructure
1. The substructure is divided into prizing-trailers, truck-mounted, entrusted Pack, me block, double-up, spin-up, and so on.
2. Box-... |
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Grapple Releasing Spear |
Grapple Releasing Spear Type LM is a simply constructed and high strength fishing tool by which fishing job is performed through the interior bore ... |
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