Specification :

Sucker rods and couplings are manufactured in accordance with API 11B. Hisin can supply sucker rods as follows:

Grade: C, D, K, KD, H;

Size ( in, ) : 5/ 8� ( 16 mm) , 3/ 4� ( 19 mm) ,

7/ 8� ( 22 mm) , 1� ( 25 mm) , 1-1/ 8� ( 28 mm)

The pony sucker rods and conventional/ slim hole couplings with various sizes are available as well.
Our conventional sucker rods are API monogrammed.

Grade C sucker rod: Moderate strength, not susceptible to sulfide stress cracking, suitable in sour medium.
Grade D sucker rod: Made of quality heat treated steel alloy, with high tensile and yield strength; suitable for non-corroding or mildly corroding environment.
Grade K, KD sucker rod: With good corrosion resistance in H2S, CO2 and NaCl media, superior tensile strength.

Grade HL and HY sucker rod: High strength; structure and size matching with grade D sucker rod; withstanding 966-1, 136 MPa ( 140, 000-164, 720 psi) ; suitable for deep and large displacement wells