What are the applications of Q235 steel pipe in building structures?
Q235 steel pipe is widely used in building steel structure frames, roof trusses and support columns. Its good welding performance facilitates on-site installation and connection, which can greatly shorten the construction period. In high-rise buildings, it is often used as an outer steel pipe for steel tube concrete columns to give full play to the advantages of steel-concrete composite structures. Compared with H-shaped steel, steel pipe structures are more evenly stressed and have better torsional resistance. And Q235 steel pipe has low cost and is a cost-effective construction steel.
What is the use of Q235 steel pipe in municipal engineering?
In municipal engineering, Q235 steel pipe is mainly used for water supply and drainage pipelines, gas transmission pipelines and municipal bridge structures. Galvanized Q235 steel pipe is a common pipe for urban water supply systems, with a service life of more than 20 years. In drainage systems, large-diameter spiral welded pipes (SSAW) are widely used, with a diameter of more than 3m. Q235 steel pipes are also commonly used to make municipal facilities such as street light poles and traffic sign poles, and the surface is usually hot-dip galvanized or sprayed.
What is the application of Q235 steel pipes in the field of machinery manufacturing?
In the machinery industry, Q235 steel pipes are used to manufacture structural parts such as frames, conveyor rollers and guardrails of various equipment. Cold-drawn precision tubes can be used for precision parts such as hydraulic cylinders and bearing sleeves, and have good processing performance. Compared with forgings and castings, steel pipe structures are light and low in cost. In agricultural machinery, Q235 steel pipes are widely used to manufacture harvester frames, tractor guard frames, etc., and usually require rust prevention treatment.
What are the applications of Q235 steel pipes in the petrochemical industry?
In the petrochemical industry, Q235 steel pipes are mainly used for low-pressure process pipelines (working pressure <1.6MPa) and structural supports. Galvanized Q235 steel pipes can be used for instrument air pipelines and fire water systems. Due to limited corrosion resistance, plastic lining or plastic coating is required in corrosive media environments. Compared with alloy steel pipes, Q235 steel pipes are low-cost and suitable for pipeline systems in non-critical parts. They are often used as guardrails, ladders and other ancillary facilities in oil tank areas.
What is the use of Q235 steel pipes in furniture manufacturing?
In the furniture industry, Q235 steel pipes are mainly used to manufacture steel and wood furniture frames, office chair brackets and display shelves. Thin-walled welded steel pipes (wall thickness 1-2mm) can be made into various shapes after bending and welding. The surface is usually electroplated (chrome, nickel) or sprayed (powder coating), which is both beautiful and rust-proof. Compared with solid wood furniture, steel pipe furniture is lighter and less expensive. Furniture companies such as IKEA use Q235 steel pipes as basic materials in large quantities.
