| After-sales Service: | Yes |
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| Warranty: | 1 Year |
| Manufacturing Process: | Casting |
| Surface Treatment: | Galvanized |
| Operation Pressure: | Atmospheric Pressure |
| Material: | Alloy |
| Samples: |
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| Customization: |
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Audited Supplier The sucker rod couplings are used for connecting sucker rods, polished rods and sinker bars.. Sucker Rod Couplings are manufactured from quenched and tempered alloyed steels.
They are available in reduced slim hole (SH) diameters as well as normal full size (FS) for both API Class T(through-hardened) and Class SM (Spray Metal).SM Class coupling has a spray-welded metal layer on the surface. The appearance is silver-white generally, the surface hardness is high, and the wear resistance and corrosion resistance are relatively good.Compared with T Class couplings, SM Class couplings have the following features:
(1) High surface hardness and good wear resistance
According to SY/T 5029-2013, the surface hardness required for T Class couplings is HRA56~62, and the metal hardness of the spray welding layer of SM Class couplings is ≥595HV0.2.
(2) The surface finish is high. The surface roughness required for T Class coupling is ≤ 3.2, and that of SM Class coupling is ≤ 1.6
Our sucker rod couplings, reducer couplings, small wellbore couplings, spray welded couplings and polished rod couplings can meet the requirements of API 11B. We can also produce couplings of different classes according to the requirements of our customers
Applicable Industries: Energy & Mining
Use::Well Drilling
Place of Origin: Shandong, China
Brand Name: Zhao Xin
Material: Alloy steel
| Size | 5/8" | 3/4" | 7/8" | 1" | 1 1/8" | 1 1/2" |
| Grade | T / SM | |||||
| Standard | API 11B | |||||
Dongying Zhao Xin Industry and Trade Co., Ltd. was established in 2001. Our company is located in Dongying city which has the second largest Oilfield (Shengli Oilfield) in China. We are a company, which conducts scientific research, development, manufacture, sale and after sale service, is one enterprise for oilfield tool and equipment manufacturer. Our main products include drilling equipment, oil production equipment, oil well service tools. Currently, our products are already exported to North America, South America, Middle East, Middle Aisa, India and other countries and regions. We are an I S O 9 0 0 1, I S O 1 4 0 0 1, I S O 4 5 0 0 1,API certified company and have all the quality systems in place for design, planning, manufacturing and quality monitoring & traceability to ensure that all products match the quality & reliability Standards. We also have an independent measurement and inspection department, the inspection and measuring tools are fully equipped, we control each process to ensure that all products are qualified. Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .
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Audited Supplier 
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