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Specifications of 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 |
Mechanical Property
Grade | Material | Yield Point MPa | Tensile strength MPa | Extension Radio % | Reduction of cross-section % | Izod Impact toughness J |
D | High Quality Alloy Steel | ≥620 | 793~965 | ≥10 | ≥50 | ≥60.8 |
Sucker Rod Coupling API 11B