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API 11B 7/8" 1" 1 1/4" Sucker Rod Polished Sucker Rod Pony Rod with Coupling
Product Description
API 11B 7/8" 1" 1 1/4" Sucker Rod Polished Sucker Rod Pony Rod with Coupling
We provide three kinds of sucker rods: solid sucker rods, hollow sucker rods and special sucker rods for PC pumps. The features are as follows:
The rod connector is welded with the rod body through friction welding followed by heat treatment and rolling depression. The sucker rods have the advantage of stable mechanical property and improved fatigue strength.
The thread is machined using a compression and rolling machine resulting in a continuous metal fiber of the thread. This technique improves thread strength and decreases stress concentration. The center diameter of the thread is controlled strictly, which makes the load to be evenly taken by the thread teeth thus increasing load capacity and preventing loosening of the connection.
The rod body, connector and coupling are made of quality 20CrMo and 35CrMo quenched and tempered alloy steel, which improves overall mechanical properties.High coaxiality between the connector thread and the rod body gives the sucker rod high bending strength.
API 11B 7/8" 1" 1 1/4" Sucker Rod Polished Sucker Rod Pony Rod with Coupling
Specifications of Sucker Rod
| SIZE (in) |
ROD D.(in) | THREAD D. (in) |
LENGTH (ft) |
OUTSIDE DIAMETER OF PIN SHOULDER(mm) |
LENGTH OF PIN(mm) |
LENGTH OF WRENCH SQUARE(mm) |
WIDTH OF WRENCH SQUARE(mm) |
| 5/8" | 5/8" | 15/16 | 2 4 6 8 10 25 30 |
31.75 | 31.75 | ≥31.75 | 22.23 |
| 3/4" | 3/4" | 1-1/16 | 38.10 | 36.51 | 25.40 | ||
| 7/8" | 7/8" | 1-3/16 | 41.28 | 41.28 | |||
| 1" | 1" | 1-3/8 | 50.80 | 47.63 | ≥38.10 | 33.34 | |
| 1-1/8" | 1-1/8" | 1-9/16 | 57.15 | 53.98 | ≥41.28 | 38.10 |
Mechanical Property
| No. | Grade | Tensile Strength Rel(Mpa) |
Yield Strength Rm(Mpa) |
Percentage Elongation A(%) | Contraction Percentage Of Area Z(%) |
| 1 | C | 620-795 | ≥415 | ≥13 | ≥50 |
| 2 | K | 620-795 | ≥415 | ≥13 | ≥60 |
| 3 | D | 795-965 | ≥590 | ≥10 | ≥50 |
| 4 | KD | 795-965 | ≥590 | ≥10 | ≥50 |
| 5 | HL | 965-1195 | ≥795 | ≥10 | ≥45 |
| 6 | HY | 965-1195 | -- | -- | -- |
Sucker Rod Coupling
|
Type |
Model |
OD mm |
Width of Wrench Square mm
|
Length of Wrench mm |
Rounding chamfer θ |
|
T Grade Coupling |
5/8 |
Φ38.1+0.13 -0.25 |
34.9 0 -0.8 |
31.8+0.62 0 |
45° |
|
3/4 |
Φ41.3+0.13 -0.25 |
38.1 0 -0.8 |
31.8+0.62 0 |
||
|
7/8 |
Φ46.0+0.13 -0.25 |
41.3 0 -0.8 |
31.8+0.62 0 |
||
|
1 |
Φ55.6+0.13 -0.25 |
47.6 0 -0.8 |
38.1+0.62 0 |
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