About Us
Eastern Steel Manufacturing Co.,Ltd is a leading manufacturer and distributor of seamless steel pipe, welded steel pipe, OCTG products and fittings. We supply first-step processing, semi-finished parts and finished parts to help our clients meet fabrication requirements beyond their capacity or to improve operations by moving forward the pre-production processing.
Product Category
News
In this column you can find the steel pipe related articles you need, including industry trends, product standards and materials, and some technical guidelines.
Services
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Facility
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Projects
Many years of large-scale project experience in various fields（Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical etc.）, professional project team is responsible from receiving until the end of the project.
2. It can implement the GB6728-2002 cold-formed hollow section steel standard for structures.
|
Product name |
Specification |
||
|
Rectangular tube |
400*600*6.0-16 |
150*200*3.0-12 |
60*120*2.5-6.0 |
|
300*500*6.0-16 |
100*300*4.0-12 |
60*100*2.5-6.0 |
|
|
200*500*6.0-16 |
100*200*3.0-12 |
60*80*2.0-5.0 |
|
|
200*400*6.0-16 |
100*150*3.0-12 |
50*90*3.0-4.0 |
|
|
200*350*6.0-16 |
80*160*3.0-8.0 |
50*150*3.0-6.0 |
|
|
200*300*6.0-14 |
80*140*3.0-8.0 |
50*120*3.0-6.0 |
|
|
150*300*5.0-14 |
80*120*2.5-8.0 |
50*100*1.5-5.0 |
|
|
150*250*5.0-14 |
80*100*2.0-8.0 |
50*80*2.0-5.0 |
|
|
350*250*5.0-14 |
60*140*3.0-6.0 |
50*70*1.5-5.0 |
|
Rectangular Tube Weight Chart
Calculation formula
2[(a-d-2r+π(r+d/2)/2+(b-d-2r+π(r+d/2)/2)x7.85d(kg), a and b are the length and width of the rectangular tube (m), r is the arc radius of the four corners of the tube lumen (m), and d is the wall thickness (mm).
|
size(mm) |
Theoretical weight kg/m |
size(mm) |
Theoretical weight kg/m |
||||
|
b1 （long） |
b2 （Width） |
T （Thickness） |
|
b1 （long） |
b2 （Width） |
T （Thickness） |
|
|
50 |
25 |
1.20 |
1.37 |
100 |
50 |
3.00 |
6.78 |
|
|
|
1.50 |
1.70 |
|
|
4.00 |
8.92 |
|
|
30 |
2.50 |
2.94 |
|
|
5.00 |
10.99 |
|
|
|
3.00 |
3.49 |
120 |
60 |
3.00 |
8.20 |
|
|
|
4.00 |
4.52 |
|
|
4.00 |
10.80 |
|
60 |
30 |
2.50 |
3.34 |
|
|
5.00 |
13.35 |
|
|
|
3.00 |
3.96 |
|
|
6.00 |
15.83 |
|
|
|
4.00 |
5.15 |
|
80 |
3.00 |
9.14 |
|
|
40 |
2.50 |
3.73 |
|
|
4.00 |
12.06 |
|
|
|
3.00 |
4.43 |
|
|
5.00 |
14.92 |
|
|
|
4.00 |
5.78 |
|
|
6.00 |
17.71 |
|
70 |
50 |
3.00 |
5.37 |
140 |
80 |
4.00 |
13.31 |
|
|
|
4.00 |
7.03 |
|
|
5.00 |
16.48 |
|
|
|
5.00 |
8.64 |
|
|
6.00 |
19.59 |
|
80 |
40 |
2.50 |
4.51 |
150 |
100 |
4.00 |
15.20 |
|
|
|
3.00 |
5.37 |
|
|
5.00 |
18.84 |
|
|
|
4.00 |
7.03 |
|
|
6.00 |
22.42 |
|
|
|
5.00 |
8.64 |
|
|
8.00 |
29.39 |
|
|
60 |
3.00 |
6.31 |
160 |
80 |
4.00 |
14.57 |
|
|
|
4.00 |
8.29 |
|
|
5.00 |
18.05 |
|
|
|
5.00 |
10.21 |
|
|
6.00 |
21.48 |
|
90 |
40 |
3.00 |
5.84 |
|
|
8.00 |
28.13 |
|
|
|
4.00 |
7.66 |
180 |
100 |
4.00 |
17.08 |
|
|
|
5.00 |
9.42 |
|
|
5.00 |
21.20 |
|
|
50 |
3.00 |
6.31 |
|
|
6.00 |
25.25 |
|
|
|
4.00 |
8.29 |
|
|
8.00 |
33.16 |
|
|
|
5.00 |
10.21 |
200 |
100 |
4.00 |
18.34 |
|
|
60 |
3.00 |
6.78 |
|
|
5.00 |
22.77 |
|
|
|
4.00 |
8.92 |
|
|
6.00 |
27.13 |
|
|
|
5.00 |
10.99 |
|
|
8.00 |
35.67 |
E-mail: sales@eastern-steels.com
