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Kelly
We can produce square and hexagonal Kellies as per customers requirements. They are made of AISI 4142H-4145H forging or structural alloy steel, carried out the quenching and backfire heat treatment process in full length. After heat treatment its brinell hardness will be up to 285-341, charpy impact power ≥54J, the process can ensure eccentricity of hole reach to standard Min.wall thickness value .The Kelly is manufactured in accordance with API standard.
Product Name | Specification |
| Weightton | |
Square Kelly | 6 | 152.4mm |
| 1.87 |
5-1/4 | 133.4mm | 1.26 | ||
4-1/4 | 108mm | 0.84 | ||
3-1/2 | 88.9mm | 0.6 | ||
3 | 76.2mm | 0.49 | ||
Hexagonal Kelly | 6 | 152.4mm | 1.1 | |
5-1/4 | 133.4mm | 1.01 | ||
4-1/4 | 108mm | 0.89 | ||
3-1/2 | 88.9mm | 0.57 | ||
3 | 76.2mm | 0. | ||
square kelly,hexagonal Kelly