Square Pipe
The square and rectangular pipes are square pipes and rectangular pipes with steel pipes with equal and unequal side lengths. It is made of strip steel rolled through process treatment. Generally, the strip steel is unpacked, flattened, curled, and welded into a round tube, which is then rolled into a square tube and then cut to the required length.
Classification:
Process
Material
Production standard
Section shape
Surface treatment
Usage
Wall thickness
Description:
The square and rectangular pipes are square pipes and rectangular pipes with steel pipes with equal and unequal side lengths. It is made of strip steel rolled through process treatment. Generally, the strip steel is unpacked, flattened, curled, and welded into a round tube, which is then rolled into a square tube and then cut to the required length.
Specifications:
Name | Square Pipe |
Size | Square pipe: 20*20mm~400*400mm Rectangular pipe: 20*40mm~300*500mm |
Standard | GB ASTM, JIS, SUS, DIN, EN etc |
Material | Q195, Q235, Q345,Gr.A, Gr.B, Gr.C,S235, S275, S355,A36, SS400 |
Thickness | 1.7~16mm |
Packing | Export standard packing or as customer request |
Classification:
Process classification:
Square and rectangular tubes are divided according to the production process: hot-rolled seamless square tubes, cold-drawn seamless square tubes, extruded seamless square tubes, and welded square tubes.
Material classification:
Square tubes are divided into plain carbon steel square tubes and low alloy square tubes according to their materials.
1. Common carbon steel is divided into: Q195, Q215, Q235, SS400, 20# steel, 45# steel, etc.
2. Low alloy steel is divided into: Q345, 16Mn, Q390, ST52-3, etc.
Production standard classification:
Square tubes are divided according to production standards: national standard square tube, Japanese standard square tube, British standard square tube, American standard square tube, European standard square tube, and non-standard square tube.
Section shape classification:
Square tubes are classified according to cross-sectional shape:
1. Simple cross-section square tube: square square tube, rectangular square tube.
2. Complex cross-section square tubes: flower-shaped square tubes, open-shaped square tubes, corrugated square tubes, and special-shaped square tubes.
Surface treatment classification:
Square tubes are divided according to surface treatment: hot-dip galvanized square tube, electro-galvanized square tube, oil-coated square tube, and pickled square tube.
Usage classification:
Square tubes are classified by use: square tubes for decoration, square tubes for machine tools and equipment, square tubes for machinery industry, square tubes for chemical industry, square tubes for steel structures, square tubes for shipbuilding, square tubes for automobiles, and square tubes for steel beams and columns. , special purpose square tube.
Wall thickness classification:
Square and rectangular tubes are classified according to wall thickness: extra-thick-walled square and rectangular tubes, thick-walled square and rectangular tubes and thin-walled square and rectangular tubes.
Packing&Delivery:
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