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 Special-shaped steel pipe is a type of steel pipe. It can be said to be a general term for seamless steel pipes with other cross-sectional shapes except round pipes. There are many types of special-shaped steel pipes. The three most common ones are special-shaped seamless steel pipes with equal wall thickness, special-shaped seamless steel pipes with unequal wall thickness, and special-shaped seamless steel pipes with variable diameters.
Special-shaped steel pipe uses
Special-shaped seamless steel pipes are widely used in various structural parts, tools and mechanical parts. Compared with round pipes, special-shaped pipes generally have a larger moment of inertia and section modulus, and have greater bending and torsion resistance, which can greatly reduce the weight of the structure and save steel.
Special-shaped steel pipes can be divided into oval special-shaped steel pipes, triangular special-shaped steel pipes, hexagonal special-shaped steel pipes, rhombus special-shaped steel pipes, octagonal special-shaped steel pipes, semi-circular special-shaped steel pipes, unequal hexagonal special-shaped steel pipes, and five-petal plum blossom shaped special-shaped steel pipes. , Double convex special-shaped steel pipe, double concave special-shaped steel pipe, melon-shaped special-shaped steel pipe, conical special-shaped steel pipe, corrugated special-shaped steel pipe.
| Thickness±10% (smallest±0.12mm) | ||||||||
| 0.5 | -0.8 | 1 | -1.2 | 1.5 | -1.8 | 2 | ||
| outer diameter | Inner diameter (nominal value and allowable deviation) | |||||||
| Size | Allowable deviation | |||||||
| 4 | ±0.10 | 3±0.30 | 2.4±0.30 | 2±0.30 | ||||
| 6 | 5±0.25 | 4.4±0.25 | 4±0.25 | 3.6±0.30 | ||||
| 8 | 7±0.20 | 6.4±0.20 | 6±0.20 | 5.6±0.30 | 5±0.30 | 4.4±0.35 | 4±0.35 | |
| 10 | 9±0.15 | 8.4±0.15 | 8±0.20 | 7.6±0.25 | 7±0.25 | 6.4±0.30 | 6±0.30 | |
| 12 | 11±0.15 | l0.4±0.15 | 10±0.15 | 9.6±0,20 | 9±0.20 | 8.4±0.25 | 8±0.25 | |
| 14 | 13±0.10 | 12.4±0.10 | 12±0.10 | 11.6±0.15 | 11±0.15 | 10.4±0.20 | 10±0.20 | |
| 16 | 15±0.10 | 14.4±0.10 | 14±0.10 | 13.6±0.10 | 13±0.10 | 12.4±0.15 | 12±0.15 | |
| 25 | 24±0.10 | 23.4±0.10 | 23±0.10 | 22.6±0.10 | 22±0.10 | 21.4±0.10 | 21±0.10 | |
| -26 | 25±0.10 | 24.4±0.10 | 24±0.10 | 23.6±0.10 | 23±0.10 | 22.4±0.10 | 22±0.10 | |
| 28 | 27±0.10 | 26.4±0.10 | 26±0.10 | 25.6±0.10 | 25±0.10 | 24.4±0.10 | 24±0.10 | |
| 30 | 29±0.10 | 28.4±0.10 | 28±0.10 | 27.6±0.10 | 27±0.10 | 26.4±0.10 | 26±0.10 | |
| 35 | 34±0.15 | 33.4±0.15 | 33±0.15 | 32.6±0.15 | 32±0.15 | 31.4±0.15 | 3l±0.15 | |
| 38 | 37±0.15 | 36.4±0.15 | 36±0.15 | 35.6±0.15 | 35±0.15 | 34.4±0.15 | 34±0.15 | |
| 40 | 39±0.15 | 38.4±0.15 | 38±0.15 | 37.6±0.15 | 37±0.15 | 36.4±0.15 | 36±0.15 | |
| 45 | 43±0.20 | 42.6±0.20 | 42±0.20 | 41.4±0.20 | 41±0.20 | |||
| 50 | 48±0.20 | 47.6±0.20 | 47±0.20 | 46.4±0.20 | 46±0.20 | |||
| 55 | ±0.25 | 53±0.25 | 52.6±0.25 | 52±0.25 | 51.4±0.25 | 5l±0.25 | ||
| 60 | 58±0.25 | 57.6±0.25 | 57±0.25 | 56.4±0.25 | 56±0.25 | |||
| 70 | 68±0.30 | 67.6±0.30 | 67±0.30 | 66.4±0.30 | 66±0.30 | |||
| 76 | ±0.35 | 74±0.35 | 73.6±0.35 | 73±0.35 | 72.4±0.35 | 72±0.35 | ||
| 80 | 78±0.35 | 77.6±0.35 | 77±0.35 | 76.4±0.35 | 76±0.35 | |||
| 90 | ±0.40 | 87±0.40 | 86.4±0.40 | 86±0.40 | ||||
| 100 | ±0.45 | 96.4±0.45 | 96±0.45 | |||||
| 110 | ±0.50 | 106±0.50 | ||||||
| 120 | 116±0.50 | |||||||
| 150 | ±0.75 | |||||||
| 180 | ±0.90 | |||||||
| 200 | ±1.0 | |||||||
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.