Tianjin Baoyi Metal Products Co., Ltd., committed to quality and credibility, is dedicated to providing excellent service to all customers. With the effective operation of the ISO9001-2000 international quality system as our guarantee, our products are widely used in industries such as construction, machinery equipment, locomotive manufacturing, containers, agricultural facilities, household goods, and decoration. Our products are sold across major provinces, municipalities, and cities in China and exported to Southeast Asia, South America, and Europe, earning unanimous praise from users. Yesterday's success is history, and tomorrow's brilliance is a hope we hope to forge together. We will build the bridge of our cooperation with pure gold quality and service. Your needs are our pursuit. The company will prioritize quality and honesty, sincerely cooperating with all customers!
Q235B hot-dip galvanized square tubes are formed by welding steel plates or strips after rolling and shaping, then coated in a hot-dip zinc bath through a series of chemical reactions; they can also be made by hot or cold rolling zinc-coated steel strips, cold bending them, and then high-frequency welding into a hollow square cross-section steel pipe. The production process of the tubes is simple, with high efficiency, a variety of specifications, and minimal equipment investment, although their general strength is lower than that of seamless square tubes.
Method of Representation: For example, a square tube with dimensions 50*50*5*6m is represented as: 50 (width) * 50 (width) * 5 (wall thickness) * 6m (length). Since square tubes are equilateral, the common length is usually 6 meters; in general industry, it is simply represented as 50*5 square. According to the representation method of square tubes, the standard is usually the side width and wall thickness. The Q235B material hot-dip galvanized square tube has good strength, toughness, plasticity, and welding properties, and excellent ductility. The alloy layer is firmly attached to the steel base, allowing the Q235B material hot-dip galvanized square tube to be formed into various shapes such as cold stamping, rolling, wiring, and bending without damaging the coating. It is suitable for general processing such as drilling, cutting, welding, and cold bending. The surface of the hot-dip galvanized parts is bright and beautiful, and can be used directly in projects as needed. Product Classification and Material:折叠
Q235B material hot-dipped galvanized square tubes come in seamless and welded varieties. Seamless square tubes are formed by extruding seamless round tubes. Product material: folded
Carbon Steel Q235 (A, B); Low-alloy Steel Q345 (A, B) - Product ApplicationsCollapse Edit Section
Q235B galvanized square tubes, due to their superior performance, are commonly used in: glass curtain walls, power towers, communication power grids, water and gas transmission, electrical wire conduit, buildings, bridges, metal structures, power transmission, and more. Their usage has significantly increased in recent years.
Acceptance Standards: The quality of Q235B hot-dipped galvanized square tubes is generally assessed by their appearance. If there are excessive occurrences of issues such as incomplete coating, pockmarks, white spots, double skin, bubbles, or discoloration to green on the outer surface of the square tube, it is deemed不合格. However, the product standards specify allowable deviation ranges for the product, which is calculated using the "Allowable Deviation" formula for dimensions.
Standard Square Tube Calculation Formula: (Length + Width) * Wall Thickness - Wall Thickness * Length * Number of Branches Q235B Material Hot-Dip Galvanized Square Tube Calculation Formula: (Length + Width) * 2 * 0.00785 * Number of Meters * 1.06 (Galvanized Layer Weight) The company boasts a team of engineering technicians and skilled workers managed by senior talents. The company continuously expands, innovates, works diligently, and is practical.
