|
|
|
|
|
|
Product
Name:
|
Drill Collar (api) |
| Product description: |
Our drill collars are manufactured from 4145h modified steel. nndrill collars are bored and drifted to api spec7-1 and fully heated to meet or exceed the mechanical property requirements of api spec7. hardness range of 285-341hb and a charpy v notch impact value of 54joules are guaranteed one inch below the surface. nnsress-relief features are manufactured in compliance with api spec7, unless otherwise specified by customers. shenlong offers optional elevator and slip recesses to improve handling efficiency and safety. |
| Product Category: |
Office & Industrial Supplies
|
| Model: |
NC 23-31 |
| Standard: |
API |
| List Price: |
|
|
|
| |
|
|
|
|
