Product Details

API Hexagonal Kelly 3"--6"

Place of Origin	Shandong, China
Brand Name	Sinotai
Model Number	2-1/2" 3" 3-1/2" 4-1/4" 5-1/4"
Type	Drill Pipe
Machine Type	Drilling Tool
Certification	API
Material	Other, Stainless steel, carbon steel,AISI4145H
Processing Type	Forging
Use	Well Drilling

Product Features

1.square kelly
2.Kellys are the drive section of the whole drill stem
3.2-1/2", 3", 3-1/2", 4-1/4", 5-1/4" 40ft

Kelly

Features:

1. We can manufacture square kelly and hexagonal kelly as per requirements of customers.

2. They are made of AISI 4142H-4145H forged or rolled alloy structural steel. Quenching plus tempering thermal treatment will be conducted over the whole length. Its Brinell hardness can reach 285-341 on the basis of such thermal treatment. Charpy impact energy: 54J. The formulated process can ensure that the misalignment of the hole reaches the standard wall thickness.