Shandong Zhengde Metal Manufacturing Co., Ltd
Shandong Zhengde Metal Manufacturing Co., Ltd. is a company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, steel sections, steel pipes,
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Zhengde the seamless rectangular tube is a long strip of steel with a hollow section and no seams around it. The use of rectangular seamless steel pipes to manufacture ring parts can improve material utilization, simplify manufacturing processes, save materials and processing man-hours, such as rolling bearing rings, jack sets, etc., which have been widely used in steel pipes. Steel pipe is also an indispensable material for various conventional weapons, and barrels, barrels, etc. must be made of steel pipes. Steel pipes can be divided into round pipes and special-shaped pipes according to the shape of the cross-sectional area.
Circular seamless steel pipes also have certain limitations. For example, under the condition of plane bending, circular seamless steel pipes are not as strong as square and rectangular seamless steel pipes. ,Rectangular tube. According to the mechanical properties of different square tubes.
| Basic size | Area | Weight | ||
| A | B | S | F/cm2 | G/kg·m- |
| mm | ||||
| 36 | 18 | 1.5 | 1.49 | 1.17 |
| 2 | 1.93 | 1.52 | ||
| 2.5 | 2.34 | 1.84 | ||
| 3 | 2.73 | 2.14 | ||
| 3.5 | 3.08 | 2.42 | ||
| 50 | 32 | 2 | 3.05 | 2.4 |
| 2.5 | 3.74 | 2.94 | ||
| 3 | 4.41 | 3.46 | ||
| 70 | 50 | 4 | 8.69 | 6.82 |
| 5 | 10.57 | 8.3 | ||
| 6 | 12.34 | 9.69 | ||
| 7 | 14 | 10.99 | ||
| 80 | 60 | 4 | 10.29 | 8.07 |
| 5 | 12.57 | 9.87 | ||
| 6 | 14.74 | 11.57 | ||
| 7 | 16.8 | 13.19 | ||
| 90 | 60 | 4 | 11.09 | 8.7 |
| 5 | 13.57 | 10.65 | ||
| 6 | 15.94 | 12.52 | ||
| 7 | 18.2 | 14.29 | ||
| 100 | 70 | 5 | 15.57 | 12.22 |
| 6 | 18.34 | 14.4 | ||
| 7 | 21 | 16.48 | ||
| 8 | 23.54 | 18.48 | ||
Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products integrated large enterprises. Five production and sales bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan and Tai'an, with more than 100 production lines, 4 nationally recognized laboratories, 2 technical engineering centers, and 5 enterprise technology centers. Products are exported to more than 50 countries and regions such as North America, South America, Europe, Africa, Oceania, Middle East, and Southeast Asia.