square kelly drill pipe
- 1000 Piece / Pieces per Month
- Main port of China
- T/T
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Product Details
| Place of Origin | Shandong, China | Brand Name | GM, AISI4145H | |
| Model Number | Square Kelly drill pipe, 2-1/2" to 5-1/4",3"to 6" | Type | Drill Pipe | |
| Machine Type | Drilling Tool | Certification | API | |
| Material | Carbon Steel | Processing Type | Other | |
| Use | Well Drilling |
Product Description
Specifications
1, Square Kelly drill pipe is made AISI 4145H alloy steel2,It is formed by hot forged and fully heat- treated
3,professional
Square Kelly drill pipe
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 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 |
We are responsible for customers, strictly implement the standard specifications, and provide high-quality products and service. Sincerely hope to establish good trade relationship with all friends at home and abroad.
Contact Us
- Goldenman Petroleum Equipment Co., Limited
- Contact nameJane Qi Chat Now
- Phone0086-546-8058559
- AddressNo. 67, Fuqian Street, Dongying District
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