API 11B Sucker Rod Alloy Steel Anti-corrusion Pup Joint on Sale
1) Material: Alloy Steel
2) Grade: C, D, K
3) Standard: API 11B
4) API and ISO certified
5) Size: 5/8'', 3/4'', 7/8'', 1'', 1 1/8''.
6) Description
Pony rods are sucker rods shorter than 25 ft, and they vary in length. They are most commonly placed adjacent to the polished rod at the top of the rod string, on top of the downhole pump for handling purposes, and on top of the polished rod with appropriate couplings to prevent the string from falling downhole if the polished-rod clamp slips.
Old pony rods normally should not be used in the load-carrying part of a new rod strings. Thus, when placing the rod string with new suckers, new pony rods should be used.
API 11B Steel Pony Rods are manufactured from micro-alloyed, modified special quality hot rolled carbon or alloy steel.
7) Parameter
| SIZE | ROD D. | THREAD D. | LENGTH | Outside D. of Pin Shoulder | Length of Pin | Length of Wrench Square | Width of Wrench Square |
| (in) | (in) | (in) | (ft) | (mm) | (mm) | (mm) | (mm) |
| 5/8'' | 5/8'' | 15/16 | 2 | 31.75 | 31.75 | ≥31.75 | 22.23 |
| 3/4'' | 3/4'' | 1-1/16 | 8 | 38.1 | 36.51 | ≥31.75 | 25.4 |
| 7/8'' | 7/8'' | 1-3/16 | 10 | 41.28 | 41.28 | ≥31.75 | 25.4 |
| 1'' | 1'' | 1-3/8 | 25 | 50.8 | 47.63 | ≥38.10 | 33.34 |
| 1-1/8'' | 1-1/8'' | 1-9/16 | 30 | 57.15 | 53.98 | ≥41.28 | 38.1 |
8) Performance
| Grade | Tensile Strength | Yield Strength | Percentage Elongation | Contraction Percentage of Area | Impact Toughness |
| Rel(Mpa) | Rm(Mpa) | A(%) | Z(%) | ακ(J/cm2) | |
| C | 620-793 | 414 | 12 | 55 | 70 |
| K | 620-793 | 414 | 12 | 55 | 70 |
| D | 794-965 | 620 | 10 | 50 | 58.8 |
Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC.
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001, etc..
Our products mainly include:
1. Casing Centralizer 2. Float Collar & Float Shoe
3. Cementing Plug 4. Cementing Head
5. Cement Basket 6. Tubing Pump / Rod Pump
7. Valve Ball & seat 8. Casing / Tubing Pipe and Coupling
9. Stage Collar 10. Pumping Unit
11. Air Blaster 12. Sucker Rod
Our group have more than 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC. Our foreign customers are mainly from America, Central Asia, Russia, Southeast Asia, Middle East, etc.