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
Other supplier products
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Sucker Rod |
Sucker Rod
Sucker rod is among our leading products absorbing technical essence from home and abroad in accordance with API SPEC 11B,SY/T5029, app... |
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Valves |
Valves
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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DDZ Elevators |
Elevators
DDZ Elevators
Center Latch Elevators are suitable for handling 18°taper shoulder drill pipe, drilling tools and etc. The elevators are ... |
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Safety Joint |
Safety Joint
The Safety Joint Type AJ is an essential safety tool for connecting the pipes in the well. In the safety joint body, there are the c... |
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Drill Collar Slips |
DCS Drill Collar Slips, there are three model: S, R and L, they can accommodate drill collar from 3”(76.2mm) to 14”(355.6mm)O.D.
Type WT Drill Col... |
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