API Kelly ( Square& Hexagonal )

Place of Origin: Sichuan China (Mainland) Brand Name: Reliance Application: Well drilling

Shape: Round Material: 4145H/ 4145H Mod. Secondary Or Not: Non- secondary

Processing Type: Forging Certification: API Machine Type: Drilling Tool

Alloy Or Not: Is Alloy

Packaging & Delivery

Packaging Detail : Seaworthy packing

Delivery Detail A. S. A. P





It has two types, square and hexagonal, are manufactured conform to API Spec7- 1 and SY/ T6509- 2000 criterion.

Product description: Our Square & Hexagonal kelly are made from AISI 4145H modified alloy bars that are quenched and tempered full length. After such heat treatment, its brinell hardness can reach 285- 341. Kelly's end, drive cross- section and joint are all processed and tested comform to API criterion. Kelly is the drive part of whole drill stem, it has two types, square kelly and hexagonal kelly and all of them are manufactured comfort to API Spec7- 1 and SY/ T6509- 2000 criterion. The Main Technical Specification of Kelly ( Square & Hexagonal )

Norminal Size (in) Length (ft) Top Upset Joint Bottom Upset JointBore DDrive Section

API BOXThread Left Hand DuRight Hand ConnectionsDLAcrossCornersAcrossFlates

3- 1/ 2 406 5/ 8REG7 3/ 4NC38 (3 1/ 2IF) 4 3/ 42 1/ 44. 4373 1/ 2

4- 1/ 4 406 5/ 8REG7 3/ 4NC46 (41F) NC50 (4 1/ 2IF) 6~6 3/ 86 1/ 8~6 3/ 82 13/ 165. 5004 1/ 4

5- 1/ 4 406 5/ 8REG7 3/ 4NC505 1/ 2FH73 1/ 46. 7505 1/ 4

6 406 5/ 8REG7 3/ 4NC507 3/ 43 1/ 27. 6256