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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SHOCK ABSORBER |
Type SJ
Shock Absorber Type SJ should be connected with the drilling string close to the bit. It can reduce or absorb both longitudinal and circum... |
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Crown Block |
The crown frame is made of high strength steel shapes.
Sheave grooves are hardened by medium frequency induction to provide extended service life.... |
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Sucker Rod |
Sucker rod is among our leading products absorbing technical essence from home and abroad in accordance with API SPEC 11B,SY/T5029, applying the ad... |
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Swivel |
Design Features：
Standard bail and double pin (male) alloy sub
The washpipe and packing are box structure, convenient to replacing on drill flo... |
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Blowout Preventor(BOP) |
Ram BOP
Single and double ram type BOPs are widely used in oilfield and offshore platform. They have the features of compact structure, easy handl... |
All supplier products
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