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| Place of Origin | GERMANY |
| Brand Name | ROSCHEN |
| Certification | ISO, API |
| Model Number | 1' - 6' |
API Female and Male Thread Sucker Rod Coupling Top Hammer Drilling
Specifications:
API Female and Male Thread Sucker Rod Coupling
1. Meterial:high quality alloy
2. Surface treatment:phosphating, blueing
API Female and Male Thread Sucker Rod Coupling
Technical Parameters
Full Size Coupling
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Thread D.(in) | Length of Wrench Square (mm) |
Hardness(HRA) |
| 5/8" | 38.10 | 101.6 | 15/16" | 31.8 | 56-62 |
| 3/4" | 41.28 | 1-1/16" | |||
| 7/8" | 46.00 | 1-3/16" | |||
| 1" | 55.60 | 1-3/8" | 38.1 | ||
| 1-1/8" | 60.33 | 114.3 | 1-9/16" |
Slim Hole Coupling
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Thread D.(in) | Length of Wrench Square (mm) |
Hardness(HRA) |
| 5/8" | 31.75 | 101.6 | 15/16" | 31.8 | 56-62 |
| 3/4" | 38.10 | 1-1/16" | |||
| 7/8" | 41.30 | 1-3/16" | |||
| 1" | 50.80 | 1-3/8" | 38.1 |
Full Size Sub-coupling
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Small End Thread D. | Big End Thread D. | Hardness(HRA) |
| 5/8"-3/4" | 41.28 | 101.6 | 15/16" | 1-1/16" | 56-62 |
| 3/4"-7/8" | 46.00 | 1-1/16" | 1-3/16" | ||
| 7/8"-1" | 55.60 | 114.3 | 1-3/16" | 1-3/8" | |
| 1"-1-1/8" | 60.33 | 127.0 | 1-3/8" | 1-9/16" |
Slim Hole Sub-coupling
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Small End Thread D. | Big End Thread D. | Hardness(HRA) |
| 5/8"-3/4" | 38.10 | 101.6 | 15/16" | 1-1/16" | 56-62 |
| 3/4"-7/8" | 41.30 | 1-1/16" | 1-3/16" | ||
| 7/8"-1" | 50.80 | 114.3 | 1-3/16" | 1-3/8" |
Full Size Polished Connection
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Thread D.(in) | Vanish Cone | Hardness(HRA) |
| 5/8" | 38.10 | 101.6 | 15/16" | 9O | 56-62 |
| 3/4" | 41.28 | 1-1/16" | |||
| 7/8" | 46.00 | 1-3/16" | |||
| 1" | 55.60 | 1-3/8" | |||
| 1-1/8" | 60.33 | 114.3 | 1-9/16" |
Slim Hole Polished Connection
| Size(in) | Coupling O.D W(mm) (+0.13,-0.25) |
Length L(mm) (+1.57,-0.00) |
Thread D.(in) | Vanish Cone | Hardness(HRA) |
| 5/8" | 31.75 | 101.6 | 15/16" | 9O | 56-62 |
| 3/4" | 38.10 | 1-1/16" | |||
| 7/8" | 41.30 | 1-3/16" | |||
| 1" | 50.80 | 1-3/8" |
Coupling Mechanical Properties
| Tensile Strength Rm(Mpa) | Yield Strength Rel(Mpa) | Elongation Percentage A(%) | Reduction Percentage of Area Z(%) |
| ≥655 | ≥405 | ≥16 | ≥48 |
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