OCTG Standard:API 5CT
Steel Grade:J55, K55, N80, L80, C90, C95, T95, P110, etc.OD:2 3/8, 2 7/8, 3 1/2.4, 4 1/2, 5, 5 1/2, 6 5/8, 7, 7 5/8, 8 5/8, 9 5/8, 10 3/4, 11 3/4, 13 3/8, 16, 18 5/8, 20" (60.3-508mm )

(OCTG Line Pipe) Oil Country Tubular Goods

octg    oil octg


   Longtaidi Pipes offers you competitive pricing and global shipping for your (OCTG)
requirements. We have been leading the industry for over 20 years. All materials supplied
 by St.  

   SINDA Pipe and Supply will meet or exceed ASTM, ASME, ANSI and/or API standards,
per your required tubing, casing, drilling pipe and others, which include the API series and
the TP series including full documentation.


1) Tubing O.D.:1.05", 2-3/8" , 2-7/8" , 3-1/2" , 4" , 4-1/2" (26.67~114.3mm)
2) Wall thickness: 4.24 - 16mm

. Length: R1(6.10m~7.32m), R2(8.53m~9.75m), R3(11.58m~12.80m)
3) Thread type: EUE, NUE
4) Grades: API J55, K55 N80, L80, P110, etc
5) Standard: API 5CT, API 5B


SMLS casing pipe with coupling and thread protector

1) Casing O.D: 41/2" , 5" , 7" , 95/8" 103/4" , 133/8" ((101.6 - 508mm) )
2) Wall thickness: 5.21 -- 22.22mm
3) Thread type: STC, LTC, BTC
4) Steel grade: H40, J55, K55, N80, L80, P110, C90, C95, T95
5) standard: API 5CT. API 5B



Tubing is used to for extracting petroleum and natural gas from a well. It is the best substitution of EU tubing . casing & tubing, oil pipe(casing), gas casing pipe, steel casing pipe etc


Standard: API spec. 5CT

Main production steel grades: J55, K55 N80, L80, P110, etc





Dimension tolerance:


pipe type Diameter Wall thickness
Cold drawn Tube diameter (mm), The allowable deviation (mm), The allowable deviation (mm),
"114.3 ±0.79 - 12.5%
114.3 acuity - 0.5%, + 1%


Mechanical properties:


standard brand Tensile strength (MPa) The yield strength (MPa) Elongation (%) Hardness,
API 5CT J55 P 517 379 ~ 1327 Look-up table
K55 P 517 P 665
N80 P 689 552-758
L80 P 665 552-665 241HB acuities
P110 P 862 758-965

API 5L Petroleum Pipeline

API 5L Petroleum Pipeline

API 5L Oil Seamless Pipe,OCTG Application:It is mainly applied to the transportation of gas, water and oil in petroleum and natural gas industry
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