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Quick Details
Specifications
Yantai Yunsheng Petroleum Machine Accessories, Co., Ltd , funded in 1997, presently is one of biggest enterprises producing double protection sucker rod couplings inside China. We now have more than 10 production lines then we can supply 20000 pcs SM sucker rod coupling per month.
All of our couplings including API Class T Sucker Rod Couplings, API spray metal sucker rod couplings and API Change-Over Sucker Rod Couplings are made full in line with API SPEC 11B, with the size range of 5/8" , 3/4" , 7/8" , 1" , 1-1/8" .
Paramater of coupling perfomance:
API Class SM coupling
1)Type: SM FS and SH coupling
2)Material: Carbon steel AISI 5I40
3)Spray Material: Ni60A Alloy Coating
4)SM Thickness: 0.01-0.02in (0.254-0.508mm)
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: 5/8 ",3/4",7/8",1",1-1/8"
11)Weight: 0.41-1.29 KG/Pcs
12)Package: wooden case
13)Payment Terms: T/T
Our New Products
1) SM Coupling with great bevel edge
2) Two-way Cambered Protection Coupling
If you have any interest in our sucker rod couplings, please do not hesitate to let we know, and we'll supply you with our high quality products and best services.