Specifications
API 5DP Rotary Hexagonal Kelly for Oilfield
1.Size: 2 1/2"-6"
2.Top end:6 5/8REG 73/4
3.Bottome End:NC26 85.7
API 5DP Rotary Hexagonal Kelly for Oilfield
Kelly is the drive part of whole drill string, it transmit the torsional energy from the rotary table to the bit in the bottom of the hole. Our precision-machined Kelly is a heavy square or hexagonal steel bar supported by the swivel through the rotary table and connected to the first joint of drill pipe in the drill string.
Features and Benefits
1. Manufactured from AISI 4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341 and a minimum average Charpy impact value of 40 ft-lbs;
2. Ends and drive sections, IDs and connections machined and inspected to API and NS-1 specifications;
3. Kelly bars ultrasonically inspected over full length and section;
4. Shipped in a protective steel-cased scabbard;
When ordering Please specify:
1. Kelly type (square or hexagonal)
2. Nominal size and overall length;
3.Upper and lower Connections.
1. Manufactured from AISI 4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341 and a minimum average Charpy impact value of 40 ft-lbs;
2. Ends and drive sections, IDs and connections machined and inspected to API and NS-1 specifications;
3. Kelly bars ultrasonically inspected over full length and section;
4. Shipped in a protective steel-cased scabbard;
When ordering Please specify:
1. Kelly type (square or hexagonal)
2. Nominal size and overall length;
3.Upper and lower Connections.
