Hot-dip galvanized angle steel, with its characteristics of “corrosion resistance, high strength, and ease of installation,” is widely used in the following fields, and specific specifications are selected for different applications:
1. Municipal Engineering and Transportation: Essential Components for Protection in Open Spaces
Road barriers: Steel bars with equal angles (40×40×4, 50×50×5) are used as posts and cross supports for the barriers, coated with a zinc layer at least 85 micrometers thick to resist corrosion caused by rain and dust and ensure road safety.
Traffic sign holder: Made of equal-angle steel (50×50×5, 63×63×6), welded into a triangular bracket for securing the sign plate. It is suitable for long-term outdoor use and does not require frequent maintenance.
Street lamp base support: The street lamp pole base is constructed using unequal-angle steel (75×50×5, 90×60×6). The longer leg is anchored to underground embedded components, while the shorter leg is fixed to the lamp post to enhance stability.
2. Architecture and steel structures: key components for supporting the framework
Steel framework support for the factory building: Equal-angle steel (63×63×6, 80×80×8) is used as connecting bars and supports between the cross beams or vertical bars of the wall frame, and is combined with H-shaped steel and channel steel to form a stable structural framework for the factory building.
Curtain wall beam accessories: Unequal-angle steel (100×63×8, 125×80×10) is used to connect the main beam of the curtain wall to the building’s wall. The long leg secures the main beam, while the short leg fastens the wall via expansion bolts, thereby accommodating the asymmetrical forces acting on the curtain wall.
Stair railing support: Equal-angle steel (30×30×3, 40×40×4) is used as a supporting frame at the bottom of the railing. After welding, the surface can be covered with wood or plastic, ensuring both strength and aesthetics.
3. Power and Communications Facilities: Corrosion Protection for Outdoor Equipment
Transmission-line tower frame accessories: Equal-angle steel (70×70×7, 90×90×9) is used as a cross brace and diagonal strut in the tower frame, connected to the main tower frame (I-beam, channel steel). The zinc coating thickness is ≥120 micrometers to resist corrosion from external wind, rain, and industrial dust.
Communications base station holder: The support frame for the base station antenna is welded from equal-angle steel (50×50×5, 63×63×6), and it is mounted on the tower or rooftop to ensure the antenna’s stability and long-term resistance to corrosion.
Cable tray support: Use equal-angle steel (40×40×4, 50×50×5) as a support or brace for the cable tray, and install it on the ceiling or wall to bear the weight of the cables while simultaneously preventing damage to the tray due to corrosion.
4. Industrial Equipment and Storage: Selecting Load-Bearing and Stable Foundations
Mechanical equipment base: The frame of the equipment base’s edge is welded using unequal-angle steel (80×50×6, 100×63×8) to enhance the base’s stability and accommodate the unidirectional force exerted by the equipment (such as the engine base and pump body).
Storage Racks: Equal-angle steel (50×50×5, 63×63×6) is used as connecting accessories for the columns and beams in the racks, and is combined with square tubes and steel plates to form racks capable of bearing heavy loads. These racks are suitable for storing medium- and small-sized goods.
Mining equipment frame: Equal-angle steel (100×100×10, 125×125×12) is used as a side frame for mining transportation equipment (such as belt conveyors). It is suitable for the mine’s environment characterized by high dust concentration and high humidity, ensuring long-term equipment operation.
5. Agricultural and Civil Scenarios: Lightweight and Practical Core Components
Greenhouse frame: Steel bars with equal flanges (30×30×3, 40×40×4) are used as side posts and cross braces for the greenhouse, and they are joined with circular pipes to form the greenhouse frame. The zinc coating thickness is ≥85 micrometers, enabling it to resist moisture and corrosion caused by pesticides in the agricultural environment.
External fence: Equal-angle steel (40×40×4, 50×50×5) is used as posts and beams for the fence. After welding, a protective fence suitable for factory areas, gardens, and breeding farms is formed, and it does not require frequent maintenance.
Civil furniture frames: The frames of tables, chairs, and outdoor flower stands are welded using equal-angle steel (25×25×3, 30×30×3), and the surface can be coated with a colored paint, ensuring both corrosion resistance and aesthetic appeal.