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Yunsheng sucker rod couplings with over 30000pcs monthly capacity,including SM sucker rod coupling, T sucker rod coupling, Sub sucker rod coupling, Full Size sucker rod coupling, Slim Hole sucker rod coupling, all of them are up to API 11 B and available in size of 5/8", 3/4", 7/8", 1"and 1-1/8"

API Sucker Rod Coupling,Class SM

 
1.Standard: API Spec 11B

2.Basic Material: AISI 5140 (40Cr),

3.Coat Material:Ni60A Alloy Coating

4.Coat Thickness: 0.01-0.02 in

5.Basic Hardness: HRC 16-23 (HRA 58-62)

6.Surface hardness: HRC 55-62

7.Metal coating hardness: 595 HV0.2

8.Type:Full size/Slim Hole

9.Main Specification of 7/8" FHSM

   1)O.D.:46.04mm

   2)Length:4in

   3)Weight:0.74kg

10.Other Coupling diameter: 5/8 ", 3/4", 7/8", 1", 1-1/8"

Moreover, Yunsheng sucker rod coupling includes T sucker rod coupling, Sub sucker rod coupling, Full Size sucker rod coupling, all of them are up to API 11 B and available in size of 5/8", 3/4", 7/8", 1"and 1-1/8"

If you are interested in any of our sucker rod couplings or have any other cooperation idea, please contact us freely for further information, as we are the direct manufacturer, we have enough room to give a competetive and discount price to you.

Waiting for your further negotiatiom. 

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.