Company Brief:

Yunsheng sucker rod couplings are up to API Spec 11B standard, including class SM sucker rod coupling, class T sucker rod coupling, Sub sucker rod coupling, Full Size sucker rod coupling, Slim Hole sucker rod coupling, are availbale in size of 5/8, 3/4, 7/8, 1 and 1-1/8.With over 20000pcs monthly capacity.Manufactured with high quality Carbon steel AISI 5I40  . Our surface alloy thermal spray coating process of our spray metal sucker rod coupling has reached the international advanced level.

API Spray metal Sucker Rod Coupling

1Standard: API Spec 11B

2Basic Material: AISI 5140 (40Cr),
3Coat Material:Ni60A Alloy Coating

4Coat Thickness: 0.01-0.02 in
5Basic Hardness: HRC 16-23 (HRA 58-62)

6Surface hardness: HRC 55-62
7metal coating hardness: 595 HV0.2

8Type:Full size/Slim Hole
9Coupling diameter: 5/8 ", 3/4", 7/8", 1", 1-1/8"

If any of our sucker rod couplings attracts you, pls feel free to contact us for further information.

Due to we're the special manufacturer, we can offer you the highest quality and the best price to build a long-term business relationship with you.