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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Heavy Weight Drill Pipe |
Integral or Weld Heavy Weight Drill Pipe
Standard: API Spec 7
Specification: OD 3 1/2”, 4 1/2”, 5”, 5 1/2”
Material: AISI 4145H Alloy Steel and ... |
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Rotary Reamer |
Rotary Reamer
Introduction:
Rotary Reamer is designed for various reams in drilling operation. Especially it can perform the double functions of ... |
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Hole Opener |
The Fixed Diameter Hole Opener
It is made of tough heat treated alloy steel for maximum strength. Cutter arms, equipped with removable cutter, a... |
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Casing accessories |
Casing Scraper
The Casing Scraper is used to clean out the dirt which may be left over internal wall of casing, such as cement scale, sandy soil, ... |
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Drill Collar |
Drill Collar
Usage :
One of the most important components of the drill string is to provide drilling bit of pressure and the drill string rigid rol... |
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