OTCG Casing Coupling

 

  • Standards: API 5CT Casing Couplings
  • Processing: Seamless
  • Size: 4 1/2- 10 3/4”
  • Grade: J55, K55, L80, N80, P110
  • Thread Type: STC, LTC, BTC
  • Test: NDT etc related rules of API 5CT and 5B
  • Surface Treatment: Whole phosphating, or inside phosphating and outside coating

API Casing Coupling Overview

OTCG (Oil Country Tubular Goods) is a family of rolled metal products for oil and gas drilling. These include drill pipe, casing and tubing, line pipe, couplings and connections. Our OTCG Casing coupling is designed to make your operations as efficient and effective as possible. Casing coupling is one of the most important parts of the drilling process, as it helps connect two casings and ensures that the well doesn’t collapse during operations. With this tool, you can improve production rates, reduce downtime, and even save on installation costs. Created with connect a joint tightness between the upper and lower casing, this device keeps fluids from leaking out – preventing unnecessary damage during operation. Plus, its reliability ensures consistent pressure and flow throughout your pipeline system.

API Casing coupling has three thread types: LTC:(Long buttress coupling), STC(Short buttress coupling), and BTC(Buttress coupling), which have the same thickness as the casing pipe body, but just have different lengths. Wiho metals is a quality wholesale manufacturer and supplier of OCTG Casing Couplings in China that can offer you a wide variety of API prime OCTG Tubing and Casing Couplings. We have a large supply of in-stock inventory manufactured according to API standards and used for oil production activities onshore and offshore. As a good OCTG manufacturer, we will be able to offer you a wide variety of coupling sizes and grades, and excellent service at reasonable prices.

 

Size, inch

Grades

Threads

4 1/2

5 1/2

8 5/8

9 5/8

10 3/4

11 3/4”

J55

K55

L80 1

L80 9Cr

P110

 

STC(Short thread coupling)

LTC(Long thread coupling )

BTC(Buttress thread coupling)

 

API Casing Couplings Dimension(LTC)

Casing Size OD(inches) Coupling Size OD(inches) Length (inches) Weight Per Coupling(lbs)
4 1/2 5.000 7.000 9.07
5 5.563 7.750 12.56
5 1/2 6.050 8.000 14.03
6 5/8 7.390 8.750 24.82
7 7.656 9.000 23.67
7 5/8 8.500 9.250 34.23
8 5/8 9.625 10.000 47.48
9 5/8 10.625 10.500 55.77
10 3/4 11.750 *10.500 *62.38
11 3/4 12.750 *10.500 *67.59
13 3/8 14.375 *10.500 *76.63
16 17.000 *11.000 *96.55

 

API Casing Couplings Dimension (STC)

Casing Size OD (inches) Coupling Size OD (inches) Length (inches) Weight per Coupling (lbs
4-1/2 5.000 6.250 8.05
5 5.563 6.500 10.18
5-1/2 6.050 6.750 11.44
6-5/8 7.390 7.250 19.97
7 7.656 7.250 18.34
7-5/8 8.500 7.500 26.93
8-5/8 9.625 7.750 35.58
9-5/8 10.625 7.750 39.51
10-3/4 11.750 8.000 49.61
11-3/4 12.750 8.000 50.49
13-3/8 14.375 8.000 56.23
16 17.000 9.000 78.98
18-5/8 20 9.000 118.94
20 21.000 9.000 98.25

API Casing Couplings Dimension (BTC)

Casing Size OD (inches) Coupling Size OD (inches) Length (inches) Weight per Coupling (lbs)
4-1/2 5.000 8.875 10.11
5 5.563 9.125 12.99
5-1/2 6.050 9.250 14.14
6-5/8 7.390 9.625 24.46
7 7.656 10.000 23.22
7-5/8 8.500 10.375 64.84
8-5/8 9.625 10.625 45.94
9-5/8 10.625 10.625 50.99
10-3/4 11.750 10.625 56.68
11-3/4 12.750 10.625 61.74
13-3/8 14.375 10.625 69.95
16 17.000 10.625 87.56
18-5/8 20.000 10.625 138.03
20 21.000 10.625 110.33

 

For more information on our extensive size and inventory, please contact us or fill in the form below.

Get A Quick Quote

A free price list customized to your specific needs.

    Name* (required)

    Email* (required)

    Company* (required)

    Your Special Needs*