Drill Collar
Category:
Oil country tubular goods
Key Words:
Oil country tubular goods
Drill Collar
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 SHIPPING
The company has main production lines such as pickling, cold rolling, hot-dip galvanizing, hot-dip galvanizing, thick plate galvanizing, and color coating, forming an annual output of 1 million tons of pickling coils, 1 million tons of cold-rolled steel sheets, and 900,000 tons of hot-dip steel sheets. The scale of galvanized and hot-dip aluminum-zinc-silicon steel sheets, 450,000 tons of thick galvanized steel sheets, and 300,000 tons of color-coated steel sheets. It is one of the largest suppliers of steel and non-ferrous metal smelting and processing in Shandong Province.
FACTORY
Shandong Baopu Metal Products Co., Ltd. was established in March 2010. It is a comprehensive large-scale enterprise integrating coating products and various steel processing and production, warehousing, distribution, and foreign trade sales.
CUSTOMER VISIT
RELATED PRODUCTS