Drill Collar
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Keywords:
Oil country tubular goods
PRODUCT DESCRIPTION
API SPEC 7-1 drill collar is made with rolling or forging AISI4145H chromium molybdenum alloy steel. Therefore, it needs to control chemical composition and the content of trace elements effectively.
Specification
|
Standard |
Number |
OD |
ID |
Length |
Weight |
Typical Bending |
|
SY5144-2007/API7-1 |
NC 23-31 |
3-1/8 |
1-1/4 |
30 |
22 |
2.57:1 |
|
NC 26-35 (2-3/8 IF) |
3-1/2 |
1-1/2 |
30 |
27 |
2.42:1 |
|
|
NC 31-41 (2-7/8 IF) |
4-1/8 |
2 |
30 or 31 |
34 |
2.43:1 |
|
|
NC 35-47 |
4-3 /4 |
2 |
30 or 31 |
47 |
2.58:1 |
|
|
NC 38-50 (3-1/2 IF) |
5 |
2-1/4 |
30 or 31 |
54 |
2.38:1 |
|
|
NC 44-60 |
6 |
2-1/4 |
30 or 31 |
83 |
|
PACKING AND DELIVERY
Packing and delivery
The company has rich experience and excellent reputation in the steel industry, and is committed to providing the best quality and applicable steel products to customers around the world. It is a large rebar production base in China. The main products include rebar, medium and thick plates, hot-rolled plates, cold-rolled plates, galvanized plates, color-coated plates, round steel, section steel, special-shaped steel, wire rod, rails, etc.
FACTORY APPEARANCE
A one-stop provider of high-quality steel solutions, with rich experience and excellent reputation in the steel industry, committed to providing the highest quality and most suitable steel products to customers around the world, and is a large rebar production base in China.
APPLICATION AREAS
The products are widely used in key projects at home and abroad, such as Beijing Daxing International Airport, South-to-North Water Diversion Project, Shijiazhuang Metro System, Xiongan Citizen Service Center, Brunei Sea Bridge, Pakistan Nuclear Power Plant, etc.
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