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Classfications of Square Tubes
Mar 01, 2021
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The square tube, as its name implies, is a kind of square-shaped tube. Many kinds of materials can be used to make square tubes. After it is unpacked, flattened, crimped and welded, the steel tube is rolled into a square tube and then it is cut into one with the required length. Generally, there are 50 square tubes in each package. In terms of stock, most of them are large in size, ranging from 10 * 10 * 0.8-1.5 to 500 * 500 * 10-25. According to their uses, square tubes can be divided into structural square tubes, decorative square tubes, architectural square tubes, mechanical square tubes, etc. Do you know more classifications of square tubes? Let’s get to know it now.
1. The classification of process
According to the production process, square tubes are divided into hot rolling seamless square tubes, cold drawn seamless square tubes, extruded seamless square tubes and welded square tubes.
As for the welded square pipe, it is divided into the following pipes:
(a) According to the process, they are arc welding square pipes, resistance welding square pipes (high frequency, low frequency), gas welding square pipes and furnace welding square pipes.
(b) According to the weld seam, they are longitudinal welded square pipes and spiral welded square pipes.
2. Material classifications
According to the material, the square pipe is divided into ordinary carbon steel square pipes and low alloy square pipes. The ordinary carbon steel is divided into Q195, Q215, Q235, SS400, 20# steel, 45# steel, etc. The low alloy steel is divided into Q345, 16Mn, Q390, St52-3, etc.
3. The classification of production standards
According to the production standards, the square tube can be classified into national standard square tubes, Japanese standard square tubes, English square tubes, American standard square tubes, European standard square tubes and non-standard square tubes.
4. The classification of cross-section shapes
(1) Simple section square tubes: The square pipes are classified into square tubes and rectangular square tubes.
(2) Square pipes with complex cross section: The square pipes are classified into flower shaped square tubes, open-ended square tubes, corrugated square tubes and special-shaped square tubes.
5. The classification of surface treatment
According to the surface treatment, square pipes are divided into hot-dip galvanized square pipes, electro galvanized square pipes, oil coated square pipes and acid pickling square pipes.
6. The classification of usage
Square tubes are classified into pipes for decoration, pipes for machine tools, pipes for the machinery industry, pipes for the chemical industry, pipes for steel structures, pipes for shipbuilding, pipes for automobiles, pipes for steel beams and columns and pipes for special purposes.
7. The classification of wall thicknesses
Square tubes can be classified into the super thick walled square pipes, thick walled square pipes and thin walled square pipes.
1. The classification of process
According to the production process, square tubes are divided into hot rolling seamless square tubes, cold drawn seamless square tubes, extruded seamless square tubes and welded square tubes.
As for the welded square pipe, it is divided into the following pipes:
(a) According to the process, they are arc welding square pipes, resistance welding square pipes (high frequency, low frequency), gas welding square pipes and furnace welding square pipes.
(b) According to the weld seam, they are longitudinal welded square pipes and spiral welded square pipes.
2. Material classifications
According to the material, the square pipe is divided into ordinary carbon steel square pipes and low alloy square pipes. The ordinary carbon steel is divided into Q195, Q215, Q235, SS400, 20# steel, 45# steel, etc. The low alloy steel is divided into Q345, 16Mn, Q390, St52-3, etc.
3. The classification of production standards
According to the production standards, the square tube can be classified into national standard square tubes, Japanese standard square tubes, English square tubes, American standard square tubes, European standard square tubes and non-standard square tubes.
4. The classification of cross-section shapes
(1) Simple section square tubes: The square pipes are classified into square tubes and rectangular square tubes.
(2) Square pipes with complex cross section: The square pipes are classified into flower shaped square tubes, open-ended square tubes, corrugated square tubes and special-shaped square tubes.
5. The classification of surface treatment
According to the surface treatment, square pipes are divided into hot-dip galvanized square pipes, electro galvanized square pipes, oil coated square pipes and acid pickling square pipes.
6. The classification of usage
Square tubes are classified into pipes for decoration, pipes for machine tools, pipes for the machinery industry, pipes for the chemical industry, pipes for steel structures, pipes for shipbuilding, pipes for automobiles, pipes for steel beams and columns and pipes for special purposes.
7. The classification of wall thicknesses
Square tubes can be classified into the super thick walled square pipes, thick walled square pipes and thin walled square pipes.
