Sucker rod couplings are a key component in the successful performance of a sucker rod string. By minimizing the wear and corrosion of couplings, the life of the sucker rod string is increased. This can substantially decrease service and repair costs. Our products has set an industry standard with the design of the Premier Performance Sucker Rod couplings including both API Class T (through hard) and API Class SM (spray metal) designs.
The spray metal sucker rod couplings is our most competitive product., which is manufactured with a special technology .It has three functions: wear proof, corrosion reisting and reducing the friction.
Technical Parameters
Other information
The spray metal sucker rod couplings is our most competitive product., which is manufactured with a special technology .It has three functions: wear proof, corrosion reisting and reducing the friction.
Technical Parameters
| sucker rod couplings | 5/8" | 3/4" | 7/8" | 1" | 1 1/8" |
| Class | SM FS | SMFS | SMFS | SMFS | SMFS |
| O.D.(mm) | 38.1 | 41.28 | 46.04 | 55.56 | 60.33 |
| I.D.(mm) | 23.81 | 26.99 | 30.16 | 34.93 | 39.69 |
| Length(in) | 1.5*4.0 | 1.625*4.0 | 1.812*4.0 | 2.187*4.0 | 2.375*4.5 |
| Material | AISI 5140 Steel Alloy | ||||
| Hardness | 56-62HRC | ||||
| Weight(kg) | 0.56 | 0.6 | 0.74 | 1.13 | 1.29 |
| Standard Reference | API SPEC 11B/ISO9001 | ||||
| Tensile Strength Rm(N/mm2) | ≥655 | ||||
| Yield Strengh Rel(N/mm2) | ≥405 | ||||
| Percentage Elongation A(%) | ≥24 | ||||
| Contraction Percentage of Area Z(%) | ≥48 | ||||
Other information
1.Smoothness: 3.1*10-3
2.Coat Thickness(in): 0.01in ~ 0.02in
3.Basic hardness: HRC 16-23
4.Surface Hardness: HRC 55-62
5. Bonding Strength(Mpa): 484
6.Hole rate: <2%
7. Min. Hardness of the layer: 595HV0.2
8. Min. Tensile Strength: 655 Mpa
9.Operating Temperature: -1000~400 Centigrade Temperature
10. Life: > 180 days
11.Package: wooden case, 1000pcs each case.
12.Usage: oil exploration equipment, accessories, oil sucker rod coupling