Sucker Rod Coupling is a joint for sucker rod that used in oilwell downhole for oil pumping and production.

Yunsheng Sucker Rod Coupling are manufactured from high quality Alloy Steel AISI 5140(40Cr),fully in accordance with API 11B Standard,including Class SM Sucker Rod Coupling,Class T Sucker Rod Coupling,Class UHS Sucker Rod Coupling.

API Class SM sucker rod coupling

1）Type: SM  FS and SH coupling

2）Coupling diameter: 5/8 ",3/4",7/8",1",1-1/8"

3)Weight: 0.41-1.29 KG/Pcs

4）Material: AISI 5I40

5）Spray Material：Ni60A Alloy Coating

6）SM Thickness：0.01-0.02in

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) Operating Temperature: -1000~400℃

12)  Life: > 180 days
13）Standard: API Spec 11B

14)Package: wooden case

15)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.