with a good reputation both at home and abroad Stable quality and excellent performance

      Sucker rod is among our leading products absorbing technical essence from home and abroad in accordance with API  SPEC 11 B.

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 or AISI 4140.

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        less than 2%

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

11) Operating Temperature         -1000~400°C

12)  Life           > 180 days

13)Standard         API Spec 11B

14)Package :  wooden case,500 pcs per box or 1000 pcs

15)Payment Terms  T/T

 

 

API spray metal sucker rod couplers