drill collar
Product Details:
| Length | ALL LENGTH |
|---|---|
| Specification | 2-7/8"OD~11"OD |
| Grade | AISI 4145H |
| Place of Origin | Shanxi, China |
| Brand Name | HJ |
| Model Number | 2-7/8"OD~11"OD |
Detailed Product Description
Drill collars are trepanned and drifted to API Spec 7. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7 requirements. A hardness range of 285-341, Brinell Hardness and Charpy V notch minimum impact strength of 40 ft-lb at 70OF are guaranteed one inch below the surface.
drill collar
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Company Info
Shanxi Huanjie Petroleum Drilling Tools Manufacturing Co., Ltd.
[China]
[Verified Member]
Online Postings: Products
Business Type:Manufacturer
City: taiyuan
Province/State: Shanxi
Country/Region : China