sucker rod coupling,Class SM

1) Type: SH SM

2) Material: seamless alloy steel AISI 5I40(40Cr).

4) Coating: Spray Material Ni60A Alloy Coating

5) Basic Hardness: HRC 16-23

6) Surface Hardness: HRC 55-62

7) Hole rate: 2%

8) Min. Hardness of the layer: 595HV0.2

9) Standard: API Spec 11B

10) Coupling diameter: 3/4"

11) Weight: 0.60 KG/pc

     O.D.:2" (50.8mm)

     Length: 4in (101.6mm)

12) Other coupling diameter:5/8",7/8",1",1-1/8"

Moreover,Yantai Yunsheng Petroleum Machine Accessories Co. Ltd is specializing in manufacturing kinds of sucker rod coupling,including T sucker rod coupling, SUB sucker rod coupling, full size sucker rod coupling,slim hole sucker rod coupling

If you are interested in any of our sucker rod couplings, please feel free to contact us for further information. We'll assure you of our best service all the time.

Yantai Yunsheng Petroleum Machine Accessories Co. Ltd., founded in 2005, is a professional manufacturer of API Spec 11B Sucker Rod Couplings, including Spray Metal coupling, class T coupling, Sub OD coupling, with various type of Full size, Slim Hole, Over Size, with Big Chamfer, with Wrench Flat, with Bidirectional Cambered Surface Protection, etc., and the thread size are available at 5/8", 3/4", 7/8", 1", 1-1/8".  Owning world top level equipments and technicians, the monthly production capacity is more than 20,000pcs.  All of our couplings are excellent in Quality and reasonable in Price, and the production & inspection are being done fully in accordance with API Spec11B standard.