API Sub coupling

Date: 22 Jan 2010
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 Sub coupling 1)Type: T&SM FS, SH 2)Coupling diameter: 5/8"*3/4", 3/4"*7/8", 7/8"*1", 1"*1-1/8" 3) Weight: 0.43-1.56 KG/Pcs 4)Material: AISI 5I40 5)Spray Material of SM Coupling :Ni60A Alloy Coating 6)Basic Hardness: HRC 16-23 7)Surface Hardness of SM Coupling: HRC 55-62 8)Hole rate of SM Coupling : <2% 9)Min. Hardness of the layer of SM Coupling: 595HV0.2 10) Operating Temperature: -1000~400℃ 11) Life: Class SM Sub Coupling > 180 days; Class T Sub Coupling > 90 days 12)Standard: API Spec 11B 13)Package: wooden case 14)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.
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Yantai Yunsheng Petroleum Machine Accessories Co., ltd.
Dongxing Road, Shengquan Industrial Park, Laishan District[264003]
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