API 3/4"to7/8" SUB Sucker Rod Coupling

1) The sub sucker rod couplings are used to connect two varisized sucker rod.

2) Basic Material: High quality carbon steel AISI 5140(40Cr)

3) SM Coating Material: Ni60A Alloy Coating

4) Basic Hardness: HRC 16-23

5) Surface Hardness: HRC 55-62

6) Hole rate: 2%

7) Smoothness: 3.1×10-3

8)Min. Hardness of the layer: 595HV0.2

9) Type: SM/T, Full size/ Slim Hole

10) OtherCoupling diameter: 5/8"to3/4 ",7/8"to1", 1"to1-1/8"

11)Main specification

Weight:0.92kg

O.D.:1-13/16(46.04mm)

Length:4in(101.6mm)

12) Life: more than 180days

 

Moreover, Yunsheng sucker rod coupling includes T sucker rod coupling, SM sucker rod coupling, Full Size sucker rod coupling, Slim Hole sucker rod coupling, all of them are up to API 11 B and available in size of 5/8", 3/4", 7/8", 1"and 1-1/8"
If you are interested in any of our sucker rod couplings, please contact us freely for further information:.