Yunsheng sukcer rod couplings are strictly produced according to API Spec 11B.Its basic material is the bar of AISI 5140(40Cr)

API SUB Sucker Rod Coupling,Class SM

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

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

3)Type:spray metal/ T, Full size/ Slim Hole

4)SM Coating Material:Ni60A Alloy Coating

5)Coat Thickness: 0.01in ~ 0.02in

6)Smoothness: 3.1×10-3

7)Basic Hardness: HRC 16-23

8)Surface Hardness: HRC 55-62

9)Hole rate: 2%

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

11)Coupling diameter: 5/8"to3/4 ",3/4"to7/8". 7/8"to1", 1"to1-1/8"

12)Main specification of 3/4"to7/8"sub sucker rod coupling

        Weight:0.92kg

        O.D.:1-13/16(46.04mm

        Length:4in(101.6mm) 

13)Usage: oil exploration equipment, accessories, oil sucker rod coupling

Others : Payment terms and price can be charged depends on you demand quantity and your annual need. The quantity larger, the price better

Payment Terms : 50% deposite in advance, delivery against payment by T/T.

Moreover,Yunsheng sucker rod couplings include Class T sucker rod coupling, Class SM sucker rod coupling, Full size sucker rod coupling, slim hole sucker rod coupling,all of them are available in sizes of 5/8",3/4",7/8",1",1-1/8"

 If you are interested in any of our sucker rod couplings or have any request, pls feel free to contact us for further information.We'll assure you of our best service all the time.