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| Well Drilling Hexagonal Kelly Pipe 4145 H Square Kelly Pipe 3 1/2" |
Well Drilling Hexagonal Kelly Pipe 4145 H square kelly pipe 3 1/2"Well Drilling Hexagonal Kelly Pipe 4145 H square kelly pipe 3 1/2"
Hexagonal Kellys
Hexagonal drill kelly are made from AISI 4145H alloy bars that are quenched and tempered full length. A hardness range of 285 to 341 BHM and a minimum impact value of 54 Joules as per ASTM A 370 are maintained one inch bellow the surface at room temperature. To improve resistance to galling, all connections are phosphate-coated with an API thread compond. Each bar used to manufacture kellys has been examined with magnetic partice inspections and ultrsonic inspections.
Well Drilling Hexagonal Kelly Pipe 4145 H square kelly pipe 3 1/2"
3"- 6" Chinese best sale Drilling Hexagonal Kelly Pipe 4145 H
1. Product: Hexagonal drill kelly
2. Raw material: AISI 4145H
3. Supply range: 3"- 6"
4. Packing: anti-rust package, steel shelf with plastic bags
5. Standard: API Spec 7-1 or SY/T6509 Standard.
6. Delivery time: within 30 days
7. Delivery condition: as customers' requirement, semi-finished forging or finished product
8. Test: Ultrasonic test, tensile test, impact test, hardness test, etc.
9. Mechanical Propriety :conforming to API 7-1 and 5D
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