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Product generic:
Pup Joint, OCTG Pup Point, Casing and Tubing Pup Point
Application:
Pipe Cut into different length used for connect two joints of tubing or casing
Specification:
Tubing Pup Joint OD : 1.9” ~ 4-1/2”(48.26~114.30mm)
Casing Pup Joint OD : 4-1/2” ~ 20”(114.30~508.00mm)
Wall Thickness ：Identical to Corresponding Casing/Tubing
Length: 2, 3, 4, 6, 8, 10, 12 ft
Standard & Grade:
API 5CT PSL1/PSL2 J55,K55,N80-1,N80-Q,L80-1, L80-9Cr,L80-13Cr,C90, C95, P110, Q125
Thread:
NUE, EUE, STC, LTC, BTC,Hydrill CS,Tenaris XC,VAM
Surface:
Anti-corrosion&water Based Paint
Pup Joints are short-length tubular components used in OCTG to connect, adjust, or repair drill strings, casing strings, or tubing strings. They are shorter than standard joints but meet the same threading and performance specifications.
Length Adjustment: Precisely position tools or equipment within the pipe string. Connect pipes of different specifications:Used to transition between pipes of different outer diameters, wall thicknesses, or steel grades. Repair Damaged Sections: Replace damaged casing or tubing sections.
API 5CT, API 5B(American Petroleum Institute) ISO 11960 (International Organization for Standardization) GB/T 19830 (Chinese National Standard)
H40, J55, K55 : Standard wells (low corrosion) N80, L80, C90 : Medium-depth wells (moderate corrosion) P110, Q125 : Deep/ultra-deep wells (high collapse resistance) L80-13Cr : High CO₂/H₂S corrosive environments
Hot Rolling Cold Rolling Threading: API standard (NUE, EUE, STC, LTC, BTC) or premium connections (Hydril CS，Tenaris XC)
| Common standards for seamless carbon steel pipes | Common Grades | Application |
| ASTM A53 | Gr.A, Gr.B | Black and hot-dipped zinc-coated steel pipes welded and seamless |
| ASTM A106 | Gr.A, Gr.B, Gr.C | Seamless carbon steel for high temperature service |
| ASTM SA179 | SA179 | Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes |
| ASTM SA192 | SA192 | Seamless carbon steel boiler tubes for high pressure |
| ASTM SA210 | Gr.A1 | Seamless Medium-carbon boiler and superheater tubes |
| ASTM A333 | Gr.1(-50℃), Gr.6(-45℃，C-Mn) | seamless and welded carbon and alloy steel pipe intended for use at low temperatures. |
| ASTM SA519 | 1020 | Seamless carbon for mechanical tubing |
| API Spec 5CT | H40, J55, K55, L80, N80-1, C95, P110, Q125 | Seamless steel pipe for casing |
| API Spec 5L | PSL1/PSL2 Gr.a,Gr.b, X42/52/60/65/70/80 | Seamless steel pipe for line pipe |
| DIN 17175 | St35.8 | Seamless steel tube for elevated temperture |
| DIN 2391 | St35, St52 | Cold drawn seamless prevision pipe |
| DIN 1629 | St37.0, St44.0, St52.0 | Seamless circular unalloyed steel tubes subject to special requirements |
| GB/T 8162-2018 | 10, 20, 35, 45 | Structural Seamless Steel Pipes |
| GB/T 8163-2018 | 10, 20 | Fluid Transportation Seamless Steel Pipes |
| GB 3087-2008 | 10, 20, 20G | Medium & Low-Pressure Boiler Pipes |
| GB 5310-2017 | 20MnG, 25MnG | High-Pressure Boiler Pipes |
| GB 6479-2013 | 10, 20, 20G | High-Pressure Fertilizer Equipment Seamless Pipes |
| GB 9948-2013 | 10, 20 | Petroleum Cracking Seamless Pipes |
| GB/T 9711-2017 | L245 (Gr.b), L290 (X42), L360 (X52), L415 (X60), L450 (X65), L485 (X70), L555 (X80) | Oil & Gas Pipeline Pipes |
| GB/T 19830-2017 | H40, J55, K55, L80, N80, C95, P110, Q125 | Oil Casing & Tubing |
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