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 Galvanized steel pipes are divided into cold-galvanized pipes and hot-dip galvanized pipes. According to the shape, they are divided into galvanized round pipes and galvanized square rectangular pipes. Both the substrate and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned by ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to hot-dip coating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.
| DN | outer diameter | Ordinary steel pipe | Thickened steel pipe | |||||||
| MM | MM | Deviation | Thickness | welded pipe(kg/m) | Galvanized pipe(kg/m) | Thickness | welded pipe(kg/m) | Galvanized pipe(kg/m) | ||
| MM | Deviation | MM | Deviation | |||||||
| 6 | 10.2 | 2.0 | 0.40 | 0.4256 | 2.5 | 0.47 | 0.50 | |||
| 8 | 13.5 | 2.3 | +12% -15% | 0.62 | 0.64 | 2.75 | +12% -15% | 0.73 | 0.75 | |
| 10 | 17 | 2.3 | 0.82 | 0.84 | 2.75 | 0.97 | 1.00 | |||
| 15 | 21.3 | ±0.5mm | 2.8 | 1.26 | 1.30 | 3.25 | 1.45 | 1.49 | ||
| 20 | 26.8 | 2.8 | 1.63 | 1.68 | 3.50 | 2.01 | 2.07 | |||
| 25 | 33.5 | 3.3 | 2.42 | 2.49 | 4.00 | 2.91 | 3.00 | |||
| 32 | 42.3 | 3.3 | 3.13 | 3.22 | 4.00 | 3.78 | 3.89 | |||
| 40 | 48 | 3.5 | 3.84 | 3.96 | 4.25 | 4.58 | 4.72 | |||
| 50 | 60 | ±1% | 3.5 | 4.88 | 5.03 | 4.50 | 6.16 | 6.34 | ||
| 65 | 75.5 | 3.8 | 6.64 | 6.84 | 4.50 | 7.88 | 8.12 | |||
| 80 | 88.5 | 4.0 | 8.34 | 8.59 | 4.75 | 9.81 | 10.10 | |||
| 100 | 114 | 4.0 | 10.85 | 11.18 | 5.00 | 13.44 | 13.84 | |||
| 125 | 140 | 4.5 | 15.04 | 15.49 | 5.50 | 18.24 | 18.79 | |||
| 150 | 165 | 4.5 | 17.81 | 18.34 | 5.50 | 21.63 | 22.28 | |||
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.
