API casing couplings for oilfeild

Detailed description

With the advanced CNC lathe processing technology, we can process various types of tubing and casing couplings. And we have got the API international quality system authentication. According to the production process is divided into couplings processing workshop and phosphating workshop. To ensure the products’ quality, we our company has established business relations with many large steel companies. The accuracy of the thread size is requested strictly according to the API standard. We’ll maintain the quality and reputation of products, and ensure the oil pipe, casing, the connection for strength and sealing and so on. Our products are sold to allover the world, the annual production capacity is more than 100 thousand pieces. The all-round service will be given to you.

 Technical Parameters

Name

size

Type of Tread

O.D*L(mm)

Weight(kg)

casing Couplings

4-1/2"

STC

127.00*158.75

5.23

4-1/2"

LTC

127.00*177.80

4.15

4-1/2"

BTC

127.00*225.42

4.55

5"

STC

141.30*165.10

4.66

5"

LTC

141.30*196.85

5.75

5"

BTC

141.30*231.78

5,85

5-1/2"

STC

153.67*172.45

5.23

5-1/2"

LTC

153.67*203.20

6.42

5-1/2"

STC

153.67*234.95

6.36

6-5/8"

STC

187.71*184.15

9.12

6-5/8"

LTC

187.71*222.25

11.34

6-5/8"

STC

187.71*244.48

11.01

7"

STC

194.46*187.15

8.39

7"

LTC

194.46*228.60

10.83

7"

STC

194.46*254.00

10.54

7-5/8"

STC

215.90*190.50

12.3

7-5/8"

LTC

215.90*234.95

15.63

7-5/8"

STC

215.90*263.52

15.82

8-5/8"

STC

244,48*196.85

16,23

8-5/8"

LTC

244,48*254.00

21.67

8-5/8"

STC

244,48*269.88

20.86

9-5/8"

STC

269.88*196.85

18.63

9-5/8"

LTC

269.88*266.70

25.45

9-5/8"

STC

269.88*269.88

23.16

10-3/4"

STC

298.45*269.88

20.78

10-3/4"

BTC

298.45*203.21

25.74

11-3/4"

STC

323.85*203.20

22.64

11-3/4"

BTC

323.85*269.88

28.03

13-3/8"

STC

365.12*203.20

25.66

13-3/8"

BTC

365.12*269.88

31.77