Audited Supplier
N80/L80/J55/K55/P110/Q125
Seamless
Hot Rolled
Carbon Steel
Polished
Oil/Gas Drilling
Round
Fob CFR CIF
API ASTM
Steel Strip Binding
China
7307920000
Product Description
API SPEG 5CT
OCTG
Casing and Tubing Pup Joints and Couplings
Our company is a modern enterprise mainly engaged in processing and selling seamless steel pipe products, and supplemented by the production and sales of thread protectors, coupling and pup joint. Our company's main products are seamless linepipe, seamless OCTG pipe and drilling pipe, sucker rod and seamless boiler pipe etc.
All of the casing and tubing couplings and pup joints are with materials of steel grade including J55, K55, N80, N80-1, N80-Q, L80, P110, and so on. The casing couplings and pup joints have STC/LTC/BTC, and the tubing couplings have NUE/EUE. By numerically controlled lathe and import molding cutter, the processing of thread can be finished in one time, which ensures its commonality and interchangeability. We have complete testing abilities, adopting a whole set of single testing apparatus of thread, including tape, pitch, tooth depth, and profile. All of our couplings meet the API 5CT.
Standard | Grade | Tensile strength(MPa) | Yield strength(MPa) | Hardness |
API SPEC 5CT | J55 | ≥517 | 379~552 | |
K55 | ≥655 | 379~552 | ||
N80 | ≥689 | 552~758 | ||
L80(13Cr) | ≥655 | 552~655 | ≤241HB | |
P110 | ≥862 | 758~965 |
Tubing Pup Joint Technical Parameters:
| SPECIFICATIONS | ||||
| Tubing Pup Joint | OD | GRADE | END TYPE | LENGTH (FT) |
| 2 3/8 | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 2 7/8 | |
| 2 7/8" | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 | |
| 3 1/2" | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 | |
| 4 1/2" | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 | |
| Size | Types of Thread | O.D*L(mm) | Grade |
| 2-3/8" | NUE | 73.02*107.92 | H40 |
| 2-3/8 | EUE | 77.80*123.82 | J55 |
| 2-7/8" | NUE | 88.90*130.35 | |
| 2-7/8" | EUE | 93.17*130.35 | K55 |
| 3-1/2" | NUE | 107.95*142.88 | |
| 3-1/2" | EUE | 114.30*146.05 | N80-1 |
| 4 | NUE | 114.30*146.06 | N80-Q |
| 4 | EUE | 114.30*146.07 | L80 |
| 4-1/2" | NUE | 114.30*146.08 | C90 |
| 4-1/2" | EUE | 114.30*146.09 | P110 |
Casing Pup Joint Technical Parameters:
Casing Pup Joint | OD | GRADE | END TYPE |
| 4 1/2" | J/K/L/N/P | LTC/STC/BTC | |
| 5" | J/K/L/N/P | LTC/STC/BTC | |
| 5 1/2 | J/K/L/N/P | LTC/STC/BTC | |
| 6 5/8" | J/K/L/N/P | LTC/STC/BTC | |
| 7" | J/K/L/N/P | LTC/STC/BTC | |
| 7 5/8" | J/K/L/N/P | LTC/STC/BTC | |
| 7 3/4" | J/K/L/N/P | LTC/STC/BTC | |
| 8 5/8" | J/K/L/N/P | LTC/STC/BTC | |
| 9 5/8" | J/K/L/N/P | LTC/STC/BTC | |
| 10 3/4" | J/K/L/N/P | STC/BTC | |
| 11 3/4" | J/K/L/N/P | STC/BTC | |
| 13 3/8" | J/K/L/N/P | STC/BTC |
| Specification | O.D(mm) | W.T(mm) | Thread type | Steel grade | Length |
| 4-1/2 | 114.30 | 6.35 | STC,LTC,BTC | J55,N80,P110 | 0.5m-5m |
| 5 | 127.00 | 7.52 | STC,LTC,BTC | J55,N80,P110 | |
| 5-1/2 | 139.70 | 7.72 | STC,LTC,BTC | J55,N80,P110 | |
| 6-5/8 | 168.28 | 8.94 | STC,LTC,BTC | J55,N80,P110 | |
| 7 | 177.80 | 8.05 | STC,LTC,BTC | J55,N80,P110 | |
| 7-5/8 | 193.68 | 8.33 | STC,LTC,BTC | J55,N80,P110 | |
| 8-5/8 | 219.08 | 10.16 | STC,LTC,BTC | J55,N80,P110 | |
| 9-5/8 | 244.48 | 10.03 | STC,LTC,BTC | J55,N80,P110 | |
| 10-3/4 | 273.05 | 11.43 | STC,LTC,BTC | J55,N80,P110 | |
| 11-3/4 | 298.45 | 12.42 | STC,LTC,BTC | J55,N80,P110 | |
| 13-3/8 | 339.72 | 12.19 | STC,LTC,BTC | J55,N80,P110 | |
| 16 | 406.40 | 12.57 | STC,LTC,BTC | J55,N80,P110 | |
| 18-5/8 | 473.08 | 11.05 | STC,LTC,BTC | J55,N80,P110 | |
| 20 | 508.00 | 12.70 | STC,LTC,BTC | J55,N80,P110 |
