As the professional manufacture, we would like to provide you Pengfa Rectangular Tube for Steel Structure. Rectangular tube use: Galvanized Square Rectangular Pip is the name of square tube and rectangular tube, and the strip steel is processed and rolled. Generally speaking, the strip steel is formed into a round tube by disassembly, flattening, crimping and welding, and then the round tube is rolled into a square tube, and then cut to the required length.
As the professional manufacture, we would like to provide you Pengfa Rectangular Tube for Steel Structure. In terms of surface quality:
(1) Finish:
1 Seamless square rectangular tube internal and external surface should be smooth and flat, no bubbles, no folding wrinkles.
When the internal surface area is less than 100 square mm, the allowable tolerance of the internal surface area is ±0.2mm.
3 When the internal surface area is greater than 100 square mm, the allowable tolerance of the internal surface area is ±0.5mm.
4. Cracks and folding are not allowed on the inner surface; 5 No scarring 6 No obvious marks of scratches and bruises.
(2) Flatness:
The inside and outside surfaces of seamless square inch pipes should be smooth and flat.
When viewing with a 10x magnifying glass, there should be no obvious uneven.
The end face of the pipe mouth is perpendicular to the center line of the pipe.
No burr on the end face of the pipe mouth.
The bend of the pipe shall not be wrinkled.
The two ends of the pipe should be parallel.
7 After rust removal, the weld is not allowed to have obvious bumps.
There should be no obvious pits.
Defects that affect use are not allowed.
10. When the plate winding machine is used for welding, the fillet radius at the weld should not be less than the thickness of the base metal.
(3) Dimensional accuracy:
The roundness error shall not exceed the maximum deviation specified in the corresponding standard, which shall not exceed 2 mm/m2.
The straightness and Angle deviation shall not be greater than 1/20 of the maximum deviation specified by the corresponding standard.
The limit deviation of length is not more than 1.5 times of the corresponding specified value.
Large-diameter rectangular tubes, also known as rectangular tubes, are divided into square tubes, open-mouthed square tubes, corrugated square tubes, etc. according to the cross-sectional integral. Extruded seamlessly spliced large-diameter rectangular tubes, welded large-diameter rectangular tubes. Galvanized Square Rectangular Pip is a steel pipe with equal and unequal side lengths. If it is subdivided, it can be divided into square tube and rectangular tube. This is because the area of the cross street is different, the square tube is a square tube, and the rectangular tube is a rectangular tube.
| Specification | Wall Thickness | Specification | Wall Thickness | Specification | Wall Thickness | Specification | Wall Thickness |
| 20*20 | 1.5 | 120*120 | 2.5 | 30*50 | 2.75 | 80*120 | 3.5 |
| 2 | 3 | 3 | 3.75 | ||||
| 25*25 | 1.5 | 3.5 | 30*60 | 2 | 4.5 | ||
| 1.7 | 3.75 | 2.5 | 4.75 | ||||
| 2 | 4.5 | 2.75 | 5.5 | ||||
| 30*30 | 1.5 | 4.75 | 40*60 | 1.5 | 5.75 | ||
| 1.7 | 5.5 | 1.7 | 80*140 | 2.75 | |||
| 2 | 140*140 | 3.5 | 1.8 | 3 | |||
| 2.2 | 3.75 | 2 | 3.5 | ||||
| 2.5 | 4.5 | 2.2 | 3.75 | ||||
| 2.75 | 4.75 | 2.5 | 4.5 | ||||
| 3 | 5.5 | 2.75 | 4.75 | ||||
| 40*40 | 1.5 | 5.75 | 3 | 5.5 | |||
| 1.7 | 150*150 | 2.5 | 3.5 | 5.75 | |||
| 2 | 2.75 | 3.75 | 80*160 | 2.5 | |||
| 2.2 | 3 | 4.5 | 2.75 | ||||
| 2.5 | 3.5 | 4.75 | 3 | ||||
| 2.75 | 3.75 | 40*80 | 1.5 | 3.5 | |||
| 3 | 4.5 | 1.7 | 3.75 | ||||
| 3.5 | 4.75 | 2 | 4.5 | ||||
| 3.75 | 5.5 | 2.2 | 4.75 | ||||
| 50*50 | 1.5 | 5.75 | 2.5 | 5.5 | |||
| 1.7 | 7.5 | 2.75 | 100*150 | 2.5 | |||
| 1.8 | 7.75 | 3 | 2.75 | ||||
| 2 | 9.5 | 3.5 | 3 | ||||
| 2.2 | 9.75 | 3.75 | 3.5 | ||||
| 2.5 | 160*160 | 3.5 | 4.75 | 3.75 | |||
| 2.75 | 3.75 | 50*70 | 2 | 4.5 | |||
| 3 | 4.5 | 2.2 | 4.75 | ||||
| 3.5 | 4.75 | 2.5 | 5.5 | ||||
| 3.75 | 5.5 | 2.75 | 5.75 | ||||
| 4.5 | 5.75 | 3 | 100*200 | 2.5 | |||
| 4.75 | 200*200 | 2.5 | 3.5 | 2.75 | |||
| 60*60 | 2 | 2.75 | 3.75 | 3 | |||
| 2.2 | 3 | 50*100 | 1.7 | 3.5 | |||
| 2.5 | 3.5 | 2 | 3.75 | ||||
| 2.75 | 3.75 | 2.2 | 4.5 | ||||
| 3 | 4.5 | 2.5 | 4.75 | ||||
| 3.5 | 4.75 | 2.75 | 5.5 | ||||
| 3.75 | 5.5 | 3 | 5.75 | ||||
| 4.5 | 5.75 | 3.5 | 7.5 | ||||
| 4.75 | 7.5 | 3.75 | 7.75 | ||||
| 80*80 | 2 | 7.75 | 4.5 | 150*200 | 3 | ||
| 2.2 | 9.5 | 4.75 | 3.5 | ||||
| 2.5 | 250*250 | 3.5 | 60*80 | 2 | 3.75 | ||
| 2.75 | 3.75 | 2.2 | 4.5 | ||||
| 3 | 5.75 | 2.5 | 4.75 | ||||
| 3.5 | 300*300 | 9.75 | 2.75 | 5.5 | |||
| 3.75 | 25*40 | 2.75 | 3 | 5.75 | |||
| 4.5 | 20*40 | 1.5 | 3.5 | 7.5 | |||
| 4.75 | 2 | 3.75 | 7.75 | ||||
| 5.5 | 2.2 | 4.5 | 150*250 | 3.5 | |||
| 5.75 | 2.5 | 4.75 | 3.75 | ||||
| 100*100 | 2 | 2.75 | 60*120 | 2 | 4.5 | ||
| 2.2 | 3 | 2.5 | 4.75 | ||||
| 2.5 | 30*40 | 1.5 | 2.75 | 5.5 | |||
| 2.75 | 2 | 3 | 5.75 | ||||
| 3 | 2.5 | 3.5 | 7.5 | ||||
| 3.5 | 2.75 | 3.75 | 7.75 | ||||
| 3.75 | 3 | 4.5 | 9.5 | ||||
| 4.5 | 30*50 | 1.5 | 4.75 | 9.75 | |||
| 4.75 | 1.7 | 5.5 | 200*300 | 5.75 | |||
| 5.5 | 1.8 | 5.75 | 7.5 | ||||
| 5.75 | 2 | 80*120 | 2.5 | 200*400 | 5.75 | ||
| 7.5 | 2.2 | 2.75 | 7.5 | ||||
| 7.75 | 2.5 | 3 | 7.75 |
Galvanized Square Rectangular Pip are widely used in machinery manufacturing, construction, metallurgical industry, agricultural vehicles, agricultural greenhouses, automobile industry, railways, highway guardrails, container skeletons, furniture, decoration and steel structures, glass curtain walls, door and window decoration, guardrails, shipbuilding, container manufacturing, electric power, agricultural construction, bicycle racks, motorcycle racks, racks, fitness equipment, leisure travel products, oil casing, oil pipes and line pipes, etc.
