Product Description
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 | | | | | | | |
Our Advantages
Quality first: production and inspection in strict accordance with
production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere
service can last for a long time.Detailed Photos
Packaging & Shipping
Company Profile
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.
Certifications
