English
Home > Products >Couplings

Short Round-thread casing coupling (STC)

All our products are produced and processed according to , with the materials of steel grade including J55, K55,...

Overview

All our products are produced and processed according to , with the materials of steel grade including J55, K55, N80, N80-1, N80-Q, L80, P110 and so on. The couplings have three types, namely STC LTC and BTC. 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, profile and so on. Our products have already passed the identification of the Quality Testing and Inspection Centre of Oil Pipe of CNPC (China National Petroleum Corporation).

Packaging & Delivery

Packaging details: Ply-wooden export pallets

Features

 Size、tolerance and weight of Short Round-thread casing coupling (STC) 1-2-1

CODE NUMBE

SPECa

O.D.Wbc㎜

MIN LENGTH (mm)

BORING RANG Qd㎜

WIDTH OF BEARING SUFACE

bmm

WEIGHT (kg)

O.D. D㎜

1

2

3

4

5

6

7

4-1/2

114.30

127.00

158.75

116.68

3.97

3.62

5

127.00

141.30

165.10

129.38

4.76

4.66

5-1/2

139.70

153.67

171.45

142.08

3.18

5.23

6-5/8

168.28

187.71

184.15

170.66

6.35

9.12

7

177.80

194.46

184.15

180.18

4.76

8.39

7-5/8

193.70

215.90

190.50

197.64

5.56

12.30

8-5/8

219.08

244.48

196.85

223.04

6.35

16.23

9-5/8

244.48

269.88

196.85

248.44

6.35

18.03

10-3/4

273.05

298.45

203.20

277.02

6.35

20.78-

11-3/4

298.45

323.85

203.20

302.42

6.35

22.64

13-3/8

339.72

365.12

203.20

343.69

5.56

25.66

16

406.40

431.80

228.60

411.96

5.56

34.91

18-5/8

473.08

508.00

228.60

478.63

5.56

54.01

20

508.00

533.40

228.60

513.56

5.56

43.42

 

Specifications

Standard: API 5CT

Size: 4 1/2" – 20"

Grade: J55/K55/N80/L80/P110

MOQ: 1 Pcs

Capacity: 3000000 Pcs /year

Order Online

You can contact us by E-mail or other ways.We will respond as soon as possible.

Name

E-mail*

Message*