The API 5CT standard covers seamless and welded casing and tubing pipes for upstream operations (OCTG = oil country tubular goods). Casing pipes are available in the diameter range 4 1/2 . to 20 inches, and in the following materials: H-40 / J-55 / K-55 / N-80 / L-80 / C-90/ T-95 / P-110 / Q-125. The main types of connections for casing pipes are STC (short threads), LTC (long threads), BTC (buttress threads) and premium gas-tight connections. Tubing pipes are manufactured in seamless and welded execution, in the size range 1.050 to 5 1/2 inches and in the following material grades: H-40 / J-55 / K-55 / N-80 / L-80 / C-90/ T-95 / P-110 / Q-125. The main types of connections for tubing pipes are NUE (non-upset), EUE (external upset) and premium. Corrosion resistance under sour service conditions is a very important OCTG characteristic, especially for casing and tubing.
Seamless Steel Pipe in API 5CT.
Tubing is used to extracting petroleum and natural gas from a well.
Casing serves as walls of a well.
L80 CASING
L80 belongs to steel grades group of corrosion-resistant casing. L80 API oilfield casing pipe includes L80-1, L80-9Cr, and L80-13Cr. L80-1 is used in the H2S environment, while L80-9Cr and L80-13Cr are used in the CO2 environment. In the corrosive environment in which carbon dioxide predominates, Super 13Cr has a higher corrosion resistance than L80-13Cr. With relatively high price, the product applies to more complicated geological conditions, and runs down deeper into the well. In the exploitation of oil and gas, the use of L80 is less frequent than J55, N80 and other materials.
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu |
| 0.15-0.22 | 1.00 | 0.25-1.00 | 0.02 | 0.01 | 12.0-14.0 | 0.5 | – | 0.25 |
Mechanical Property:
| Yield point | Tensile strength | Hardness | Elongation |
| Ksi(Mpa) | Ksi(Mpa) | HRC | % |
| 80-95(552-655) | ≥95(655) | 23 | API 5CT |
API-5CT Casing Pipe&Tubing Pipe and Coupling L80 N80 P110 Q125 V150
FOB Price: US $666 / Ton
Min. Order: 20 Tons
API 5CT P110 Oil Casing Tubing with Stc Thread
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
API 5CT K55 J55 N80 L80 P110 Oil Casing Tubing
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
API 5CT Casing and Tubing for Oil Water Well
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
Oilfield Casing Pipes /Oil Drilling Tubing
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
Seamless Steel Water Well Casing and Tubing
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
API-5CT Seamless Tubing Pipe & OCTG Oil Casing
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
API 5CT Casing and Tubing (J55/K55/N80/L80/P110) with Stc/Ltc/Btc
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
J55/L80/P110 Oil Field Well Casing Tubing
FOB Price: US $600 / Ton
Min. Order: 20 Tons
API 5CT Tubing of Carbon Steel Casing Pipe
Min. Order: 20 Tons
API 5CT L80 13cr Oil Casing and Tubing
FOB Price: US $600 / Ton
Min. Order: 20 Tons
Video
Well Used in Oil Field API5CT L80 Casing Tubing
FOB Price: US $600 / Ton
Min. Order: 20 Tons
API 5CT OCTG Casing & Tubing for Oil Well and Water Well
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
High Pressure API 5CT Seamless Steel N80 Oil Tubing Well Casing Pipes
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
API 5CT Od 20 Inch 508mm Oil Well Casing Tubing Pipe with J55 K55 Material
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
API 5CT K55 J55 N80 L80 P110 Pup Joint Coupling Oil Casing Tubing for OCTG
FOB Price: US $600 / Ton
Min. Order: 20 Tons
Video
Oil and Gas Pipe in API 5CT, Tubing and Casing J55/K55
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
API 5CT K55 J55 N80 L80 P110 Casing/Tubing /Coupling/Pup Joint for OCTG
FOB Price: US $600 / Ton
Min. Order: 20 Tons
API 5CT K55 J55 N80 L80 P110 Pup Joint Coupling Oil Casing Tubing for OCTG
FOB Price: US $600 / Ton
Min. Order: 20 Tons
Manufacturer API Grade J55 K55 N80 L80 P110 Used Oil Well Steel Casing Pipe Tubing
FOB Price: US $600 / Ton
Min. Order: 20 Tons
2018API 5CT Oil Well Seamless Casing Pipe (J55 K55 N80 P110)
Min. Order: 50 Tons
API 5CT K55 /J55/N80/P110 Steel Oil Casing Pipe
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
API 5CT Oilfield Casing Pipes
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
API 5CT 9 5/8″ Water Well Casing Pipe
FOB Price: US $550-750 / Ton
Min. Order: 1 Ton
Min. Order: 100 Tons
API 5CT L80 13cr Seamless Pipe, API 5CT L80 Casing, API 5CT L80 Tubing
FOB Price: US $850-1,100 / TonMin. Order: 10 Tons
Oil Casing Steel Pipe, Tubing Steel Pipe L80 13cr 9cr, API 5CT Tubing&Casing
FOB Price: US $1,000 / TonMin. Order: 10 Tons
Steel Pipe L80 API 5CT, L80 13cr Casing Pipe, API 5CT Tubing Pipe L80 9cr
FOB Price: US $800-1,500 / TonMin. Order: 25 Tons
Grade P110 Casing and Tubing, L80 API 5CT Seamless Pipe
FOB Price: US $550-1,500 / TonMin. Order: 25 Tons
API 5CT Tubing, Casing Pipe API 5CT P110 Q125, Steel Pipe in API 5CT L80-1 L80-Q
Min. Order: 25 Tons
L80-1 Steel Pipe Btc R2 R3, P110 Casing Pipe 244.5mm, API 5CT Tubing 177.8mm
FOB Price: US $600 / TonMin. Order: 10 Tons
Oil and Gas Pipe in API 5CT, Tubing and Casing J55/K55
FOB Price: US $850-1,100 / TonMin. Order: 10 Tons
API 5CT Pipe, J55 Btc Casing Steel Pipe, K55 Stc Tubing Steel Pipe
Min. Order: 25 Tons
API 5CT Casing, API 5CT Tubing, Oil and Gas Steel Pipe in API 5CT J55/K55 R2 R3
Min. Order: 25 Tons
API 5CT Steel Pipe, Casing Pipe, Tubing Pipe P110 339.7mm 244.5mm
Min. Order: 25 Tons
Stc Steel Pipe API 5CT, Casing and Tubing Pipe R2, OCTG Oil Pipe 13 3/8″ Btc R3
FOB Price: US $620 / TonMin. Order: 10 Tons
Petroleum Casing Pipe, Petroleum Tubing Pipe 5CT API, API 5CT Pipe 11.8m R3
FOB Price: US $620 / TonMin. Order: 10 Tons
OCTG Piping, API 5CT Spec Seamless Tubing, Casing Piping
FOB Price: US $550-1,500 / TonMin. Order: 25 Tons
Tubing Andf Casing Pipe API 5CT Btc R3, API 5CT Casing&Tubing J55 K55 N80-1
FOB Price: US $600 / TonMin. Order: 10 Tons
Seamless Casing 340mm, API 5CT K55 339.7mm Steel Pipe, OCTG Tubing
FOB Price: US $550-1,500 / TonMin. Order: 25 Tons
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