Class T And Class Sm Coupling For Sucker Rods Are Manufactured As Per Api Specification 11b. For The Thread Cutting, We Are Using Cold Form Rolled By Displacing Rather Than By Removing Of Material For
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Class T and Class SM coupling for sucker rods are manufactured as per API Specification 11B. For the thread cutting, we are using cold form rolled by displacing rather than by removing of material for making the coupling thread. The thread rolling cutting results in a compressive stress at the root of the thread, giving maximum strength to the traditional weak point of cut-thread couplings.
Class T coupling is using AISI 5140 to manufacture.The coupling is coated using phosphate chemical treatment or black oxide on customer's request.For Class SM coupling, the spray metal is a specification hardening process and is applied on the base metal.
The couplings are available in full size, slim hole and over size.Also, combination couplings are available for different diameters (sub-coupling) for both Class T and Class SM couplings.
We recommend changing sucker rod couplings after three make-ups, provided the connection threads have been inspected and deemed acceptable for reuse.
| Type | Sucker Rod Coupling | |||
| Class T&SM | Nominal Size in |
Outer Diameter +0.13 in -0.25 in |
Inner diameter +0.13 in -0.25 in |
Outer Size (O.D ×Length) in |
| Full Size | 5/8 | 1-1/2 | 15/16 | 1.500×4.000 |
| 3/4 | 1-5/8 | 1-1/16 | 1.625×4.000 | |
| 7/8 | 1-13/16 | 1-3/16 | 1.812×4.000 | |
| 1 | 2-3/16 | 1-3/8 | 2.187×4.000 | |
| 1-1/8 | 2-3/8 | 1-9/16 | 2.375×4.500 | |
| Slim Hole | 5/8 | 1-1/4 | 15/16 | 1.250×4.000 |
| 3/4 | 1-1/2 | 1-1/16 | 1.500×4.000 | |
| 7/8 | 1-5/8 | 1-3/16 | 1.625×4.000 | |
| 1 | 2 | 1-3/8 | 2.000×4.000 | |
| Mechanical Property | Tensile Strength ≥655MPa | |||
Business Nature
Manufacturer
No. Employees
Fewer than 5
Year Established
2014
Annual Turnover
Approx 0.5 Billion US Dollar
Country/Region
Dongying, China
Main Products
Coupling, Torque Anchor, Centralizer, Drill Collar, Drill Pipe, Bridge Plug, Oil Packer, Sucker Rod...
Legal Status
Own Lisence
Payment Terms
Bank wire (T/T)
A steel sucker rod is one of the important equipment of oil field.Can provide seven kinds of the level of sucker rod, including C, K, D, KD, HL, HY andC, K, D sucker rod press design and manufacture standard of API Spec 11 B, KD, HL, HY grade rod design and manufacture according to standard SY/T5029-2006, KH level rod according to standard within the company. Grade C sucker rod is mainly used for light, medium load, no corrosion or corrosion shallow Wells or in deep well pumping, material is carbon steel or manganese steel. Grade D sucker rod is made of high quality alloy steel, after heat treatment with high strength, plasticity is good, long life and other characteristics, it is suitable for light when there is no corrosion or corrosive medium in the deep Wells under the environment of use. Grade H(HLandHY) sucker rod is made of high quality alloy steel manufacturing, have the characteristics of ultra high strength, used in deep well, big strong pump used in production. And K and KD sucker rod with different content of Ni Cr - Ni - Mo high quality alloy steel manufacturing, have anticorrosive, resistance to corrosion function, respectively applicable to strong corrosion of shallow, middle and deep Wells.
