China Suppliers - API Spec 11B Sucker Rods from Factory for Reliable Rod Pumping Systems
| Size | Thread D. | Length | Outside Diameter of Pin Shoulder | Length of Thread | Length of Wrench Square | Width of Wrench Square |
|---|---|---|---|---|---|---|
| (in) | (in) | (ft) | (mm) | (mm) | (mm) | (mm) |
| 5/8 | 15/16 | 2 4 6 8 10 25 30 | 31.8 | 31.75 | ≥ 31.8 | 22.2 |
| 3/4 | 11/16 | 38.1 | 36.5 | 25.4 | ||
| 7/8 | 1 3/16 | 41.3 | 41.28 | |||
| 1/1 | 1 3/8 | 50.8 | 47.63 | ≥ 38.1 | 33.3 | |
| 1 1/8 | 1 9/16 | 57.2 | 53.98 | ≥ 41.3 | 38.1 | |
| Grade | Yield Strength | Tensile Strength Rm (Mpa) | Percentage Elongation A | Contraction Percentage of Area Z (%) | Impact Toughness | |
| Rel (Mpa) | (%) | a(3/cm2) | ||||
| C | ≥ 414 | 620-793 | ≥ 12 | ≥ 55 | ≥ 70 | |
| D | ≥ 620 | 794-965 | ≥ 10 | ≥ 505 | ≥ 58.85 | |
| K | ≥ 414 | 620-793 | ≥ 12 | ≥ 55 | ≥ 70 |
| Size | Rod D. | Length | Thread D. (in) | Thread Length (mm) | Small Diameter Taper of Thread | ||
|---|---|---|---|---|---|---|---|
| (in) | (mm) | (ft) | |||||
| 1 | 25.4 | 30 25 24 16 |
15/16 | 28.58 | 9° | ||
| 1 Upset | 15/16 | 1 1/16 | 31.75 | 36.5 | |||
| 1/8 | 28.6 | 15/16 | 1 1/16 | 34.93 | |||
| 1-1/8 Upset | 1 3/16 | 1 3/8 | 41.28 | 47.63 | |||
| 1 1/4 | 31.8 | 1 3/16 | 34.93 | ||||
| 1-1/4 Upset | 1 3/8 | 1 9/16 | 47.63 | 53.98 | |||
| 1 1/2 | 38.1 | 1 3/8 | 44.45 | ||||
| Grade | Yield Strength Rel (Mpa) | Tensile Strength Rm (Mpa) | Percentage Elongation A (%) | Contraction Percentage of Area Z (%) | Impact Toughness ak(J/cm2) | ||
| 1 | ≥ 414 | 620-827 | ≥ 12 | ≥ 55 | ≥ 70 | ||
| 2 | General | ≥ 586 | 655-1102 | ≥ 10 | ≥ 50 | ≥ 58.8 | |
| Anti-corrosion | ≥ 414 | ≥ 12 | ≥ 55 | ≥ 70 | |||
All our sucker rods are manufactured to meet the rigorous requirements of API Spec 11B, ensuring high quality and reliable performance.
We offer specialized surface treatments including copper plating, nitriding, and Ni-P alloy coating to mitigate corrosion and significantly extend fatigue life.
To ensure structural integrity, each sucker rod undergoes quenching and tempering, ultrasonic inspection, magnetic particle testing, and comprehensive dimensional verification.
They are engineered to operate reliably in challenging environments, including wells with corrosive fluids, high deviation angles, and abrasive formations.
Yes, thanks to their superior run-time performance and reduced failure rates, they are a highly dependable choice for both shallow stripper wells and deep, high-load pumping applications.