What industries are rectangular pipes mainly used in
Source：
rofn.cn Release date： 2025-09-16
Information summary：Rectangular pipes (hollow metal tubes with rectangular or square cross-sections, commonly made of carbon steel, stainless steel, aluminum alloy, etc.) are widely used in multiple industries due to their high structural strength, good cross-sectional stability, high space utilization, and ease of processing and installation. Their core applications include structural support, frame construction, fl
Rectangular pipes (hollow metal tubes with rectangular or square cross-sections, commonly made of carbon steel, stainless steel, aluminum alloy, etc.) are widely used in multiple industries due to their high structural strength, good cross-sectional stability, high space utilization, and ease of processing and installation. Their core applications include structural support, frame construction, fluid transportation, and other scenarios. The specific industries and application scenarios are as follows:
1. Construction and decoration industry
This is one of the main application areas of rectangular tubes, mainly used for structural load-bearing and exterior decoration:
Structural support: The curtain wall keel of high-rise buildings, secondary beams of steel structure floor slabs, stair handrail supports, canopy load-bearing frames, etc., replace traditional angle steel and channel steel, reduce structural weight while improving bending resistance;
Decoration and renovation: Indoor partition frames, ceiling joists, display racks for shopping malls, hotels, and office buildings, as well as outdoor billboard frames, landscape corridors, columns and beams that combine load-bearing and aesthetic appeal;
Civilian scenarios: Sunroom frame, balcony guardrail, anti-theft window frame, etc. Aluminum alloy rectangular pipes are more suitable for home decoration due to their corrosion resistance and light weight.
2. Mechanical manufacturing industry
Based on its strong rigidity and easy processing characteristics, it is used for equipment structures and transmission components:
Equipment framework: bed support for CNC machine tools, brackets for automated production lines, side frames for conveyors, base columns for industrial robots, etc., to ensure the stability of equipment operation;
Transmission and support components: transmission shaft sleeves for small machinery, protective sleeves for hydraulic systems, connecting arms for robotic arms, etc. Some high-strength carbon steel rectangular tubes can directly replace solid shafts, reducing costs and weight.
3. Transportation industry
The application scenarios of rectangular pipes vary significantly in response to the lightweight and high-strength requirements of different modes of transportation
Automotive industry: chassis brackets for new energy vehicles, body crash beams (some lightweight models use aluminum alloy rectangular tubes), carriage guardrails;
Rail transit: internal frames of subway and high-speed rail carriages (such as seat brackets, air duct frames), and support structures for platform screen doors;
Ship and Aviation: Deck guardrails for small ships, pipeline supports in engine rooms, and lightweight structural components for general aviation equipment (often using aluminum alloy or stainless steel rectangular pipes, balancing corrosion resistance and strength).
4. Furniture and Home Appliance Industry
Focusing on the needs of "structural framework+spatial adaptation" to enhance product durability and design sense:
Furniture field: Office furniture (leg supports for office desks and conference tables, filing cabinet frames), civilian furniture (wardrobe hangers, sofa metal frames, outdoor leisure table and chair frames), especially minimalist style furniture, often created with sharp lines in rectangular tubes;
In the field of household appliances, internal support frames for refrigerators and washing machines (such as washing machine inner cylinder brackets), protective net frames for air conditioning outdoor units, and transportation fixing frames for large household appliances are used to reduce the overall weight of household appliances by utilizing their hollow structures.
5. Fluid transportation and chemical industry
Mainly made of corrosion-resistant materials (stainless steel, galvanized steel), rectangular pipes are used for fluid transportation in specific scenarios:
Fluid transportation: Acid and alkali liquid transportation pipes in chemical workshops (stainless steel rectangular pipes have strong corrosion resistance), sewage treatment pipes in the environmental protection industry, and fresh air ducts in ventilation systems (rectangular pipes are more suitable for building space layout and reduce wind resistance);
Chemical equipment: external support frames for chemical reaction vessels, guardrails and ladder structures for storage tanks, to prevent structural failure caused by medium corrosion.
6. Agriculture and animal husbandry
Focusing on "low cost+durability" for agricultural facility construction:
Agricultural facilities: the main framework of greenhouses (often made of hot-dip galvanized rectangular pipes, resistant to wind and rain erosion), and pipe supports for irrigation systems;
Animal husbandry: The fence of the breeding farm, the roof support beam of the poultry house, and the frame of the feed storage bin are suitable for outdoor humid environments.
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