| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Year |
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Polished rod is designed for connecting sucker rod strings to beam pumping units via polished rod packing. The rods are round cross-section bars.
Material have two types :alloy steel,Stainless Steel
ALLOY STEEL: Alloy Steel is manufactured from chromium-molybdenum alloy steel (4140) and
designed for light to heavy loads at any depth in mild to medium corrosive well fluids that are effectively inhibited against corrosion. This polished rod has a minimum tensile strength of 125,000 PSI and has been alloyed to improve its hardenability and increase its resistance to corrosion and abrasion.
STAINLESS STEEL: Stainless Steel is manufactured from Type 431 High Strength stainless steel. This polished rod has a minimum tensile strength of 115,000 PSI and has the best corrosion resistance properties when compared to 1045 or 4140 alloy rods. It has excellent tensile and torque strength and good toughness, making it ideally suited for progressing cavity pump application. This grade exhibits excellent resistance to a wide variety of corrosive media including salt water. It is designed for any loads at any depth where corrosion is a problem
Advantages
1.They are all designed in accordance with API Spec 11B
2. They are all manufactured through cold-drawing, rolled threading, and surface grinding, etc.
3. It has high strength, good toughness, smooth surface and long lifetime etc.
| Name | Size | Grade | Mechanical properties | Length (m) |
|||
| Rel | Rm | A | Z | ||||
| (MPa) | (MPa) | (%) | (%) | ||||
| Polished rod-upset on one end | φ25 | H | ≥795 | 965~1195 | ≥ 10 | ≥ 45 | 6.00 8.00 9.50 10.00 |
| φ29 | D | ||||||
| φ32 | |||||||
| φ38 | ≥ 590 | 795~965 | ≥ 10 | ≥ 50 | |||
| Polished rod-normal type | φ25 | H | ≥795 | 965~1195 | ≥ 10 | ≥ 45 | |
| φ29 | D | ||||||
| φ32 | |||||||
| φ38 | ≥ 590 | 795~965 | ≥ 10 | ≥ 50 | |||
| Polished rod-metal spray | φ32 | H | ≥795 | 965~1195 | ≥ 10 | ≥ 45 | 6.00 8.00 9.14 |
| φ38 | |||||||
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