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Help CenterAISI 4145H Square Kelly Drill Pipe for Oilfield
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Overview
Product Description
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.
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.The formulated process can ensure that the misalignment of the hole reaches the standard wall thickness. Kelly bars are manufactured according to API-7-1 Spec.
The Main Technical Specification of Kelly ( Square& Hexagonal )
|
Norminal Size (in) |
Length(ft) |
Top Upset Joint |
Bottom Upset Joint |
Bore D |
Drive Section |
|||
|
API BOX Thread Left Hand |
Du |
Right Hand Connections |
DL |
Across Corners |
Across Flates |
|||
3-1/2 |
40 |
6 5/8REG |
7 3/4 |
NC38(3 1/2IF) |
4 3/4 |
2 1/4 |
4.437 |
3 1/2 |
4-1/4 |
40 |
6 5/8REG |
7 3/4 |
NC46 (41F) NC50(4 1/2IF) |
6~6 3/8 6 1/8~6 3/8 |
2 13/16 |
5.500 |
4 1/4 |
5-1/4 |
40 |
6 5/8REG |
7 3/4 |
NC50 5 1/2FH |
7 |
3 1/4 |
6.750 |
5 1/4 |
6 |
40 |
6 5/8REG |
7 3/4 |
NC50 |
7 3/4 |
3 1/2 |
7.625 |
6 |
Packaging & Shipping
Company Information
Our Services
For more information, you can contact me :
Contact person : Alisa Ma
Mob : +86-13706368719
Looking forward to cooperating with you!
Send Inquiry to This Supplier
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