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OCTG Products

OCTG Products

CASING AND TUBING PIPES

Drilling of oil and gas wells and transportation of oil and gas, main products include: casing, tubing, drill pipe, drill collar, heavy weight drill pipe, slotted pipe, line pipe, coupling and pup joint.

  • Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas, size: OD: 4 1/2’’ ~ 20’’ (114.3mm ~ 508mm) ；WT: 0.205’’ ~ 0.635’’ LENGTH: R1, R2, R3
  • Tubing: The tubing is a pipeline that transports crude oil and natural gas from the oil and gas layer to the surface after drilling is completed. It is used to withstand the pressure generated
    during the mining process. Used for the Transmission of Oil & Gas
  • Drill pipe: Oil drilling pipes are made by geological drilling steel by hot rolling or cold drawing. Grade: E75, X95, G105, S135. Mainly used for oil and gas exploitation.
  • Drill Collars: Standard: API SPEC 7-1, Steel grade: AISI 4145H, Sizes:3 1/8″ — 11″, Connected Type: NC, IF, REG, Length:30 – 31 ft ± 6 ft.

Type of design:（ 1）plain（; 2） with a recess of the elevator（; 3） with a recess of the elevator and power slips（; 4） spiral and a wide range of type mixtures.

  • Heavy Weight Drill Pipe: Standard API 5DP, API SPEC 7-1，Grade: API 5DP Grade DZ50, E75, R780, X95, G105, S135

Sizes: 2 3/8”, 2 7/8”, 3 1/2” 4”, 4 1/2”, 5”, 5 1/2” up to 6 5/8” Range of Thickness: 6.5mm to
12.7mm, or customized, Connection threads:NC26, NC31, NC38, NC40, NC46, NC50, 5 1/2FH.6 5/8FH，Length: R1, R2, R3

  • Slotted Pipe: Standard: API 5CT, Grade: API J55, API K55, API N80, API L80, API P110, Thickness:
  • 6.88mm – 11.51mm, Sorts: API casing, Length: ≤15m (each), Outside Diameter:
  • 50~200mm, Slot Width:(0.10~4) mm ±0.03mm
  • Line pipe: Out Diameter: 2 3/8″ – 4 1/2″ (60.3mm-114.30mm) ； Wall Thickness: 0. 205″- 0.635″ ；Length: R1(4.88mtr-7.62mtr), R2(7.62mtr-10.36mtr), R3(10.36mtr or longer); grade: API5L, ASTM A106/A53

Casing or Tubing Pipe 20,18 5/8,13 3/8,9 5/8,7,5 1/2,5,4 1/2, 3 1/2 inch, SMLS, PSL2 and PSL3

MANUFACTURE ACCORDING TO API 5CT CASING OR TUBING COUPLINGS:

  • Group 1, H40, J55, K55, N80(1), N80(Q) and R95
  • Group 2, C110, C90, L80(1), L80(13Cr), L80(9Cr) and T95, Group 3, P110, Group 4, Q125 Stainless-steel, duplex, super duplex and CRA clad

CARBON STEEL FORGED PIPE FLANGES:

SANG can supply the complete range of forged pipe flanges. Production and stockholding are concentrated in austenitic stainless-steels, duplex, super duplex and CRA clad carbon steel

ERW PIPE MILL (HIGH FREQUENCY INDUCTIVE WELDING):

This mill produces pipes with length up to 18 m. with 8 to 24 in. diameters and up to 20.6 mm. thickness. Pipes produced in this mill are in accordance with international standards such as API 5L, ISO 3183 and customer requirement such as: IPS-M-PI-190 In production processes, steel strip in form of coil are put at the beginning of feed line and irregular end of coils are cut & welded. Following to milling of longitudinal edges of coil, strip surface is tested by ultrasonic and strip edges are welded by high frequency inductive welding (HFI). While moving through automated ultrasonic system (to indicate welding faults), longitudinal welding seam is heat treated and pipes are cut in required length. Then pipe ends circumference is controlled by ultrasonic system and are beveled. Then pipe is tested by hydrostatic machine and finally pipe longitudinal welding is tested by ultrasonic and after weighing and marking can be delivered to the customer. According to market demand it is also possible to produce heavy profiles in square and rectangular forms with maximum dimensions of 500×500 mm. and 600×400 mm. These products are produced in accordance with international standards such as EN 10219.

PIPES, FITTINGS, FLANGES, VALVES, BOLTS AND GASKETS:

SANG offers a unique proposition to clients by successfully supplying these commodities in carbon, stainless, duplex, super duplex, nickel alloy, copper nickel, 6MO and chrome molybdenum steels. Clients can take advantage of significant cost benefits by combining material and commodity groups. Its combined multiple offering and competitive pricing, coupled with excellent service and technical expertise, sets SANG apart from its industry counterparts. Several thousand tons of pipes, fittings, flanges, valves, bolts and gaskets are available for immediate delivery across the country. We also hold a vast range of semi-finished items that can be modified to non-standard components in our in-house machine shop, which is operated by experienced technicians. A dedicated stock management team aided by sophisticated computer technology maintains optimum stock levels by monitoring usage and scheduling manufacturing capacity.