API Sub Couplings

API Sub coupling

1 Type: T&SM  FS, SH

2 Coupling diameter:

           5/8"*3/4",

           3/4"*7/8",

           7/8"*1",

           1"*1-1/8"

 3  Weight: 0.43-1.56 KG/Pcs

4  Material: AISI 5I40

5  Spray Material of SM Coupling :Ni60A Alloy Coating

6  Basic Hardness: HRC 16-23

7  Surface Hardness of SM Coupling: HRC 55-62

8  Hole rate of SM Coupling : less than 2%

9  Min. Hardness of the layer of SM Coupling: 595HV_0.2

10  Operating Temperature: -1000~400

11  Life: Class SM Sub Coupling > 180 days;

               Class T Sub Coupling > 90 days

13  Package: wooden case

14  Payment Terms: T/T

Our New Products

1) SM Coupling with great bevel edge

2) Two-way Cambered Protection Coupling

If you have any interest in our sucker rod couplings, please do not hesitate to let we know, and we’ll supply you with our high quality products and best services.