Description
Production process
After the steel strips are unwound and flattened, they are gradually bent and formed through multiple sets of rollers. Pre-installed bolt installation holes are made by stamping. The finished product can be cut to the required length as needed.
Main surface treatments are divided into two types:
Galvanized C-shaped steel: Hot-dip galvanizing / galvanized strip, rust-proof and corrosion-resistant, preferred for outdoor factories;
Black material C-shaped steel: Bare steel material, can be painted or coated with anti-rust paint later, mostly used for indoor load-bearing structures.
III. Common Specifications and Materials
Conventional specifications: C80, C100, C120, C140, C160, C180, C200, C220, C250, C300, etc. The numbers represent the cross-sectional height; the wall thickness is 1.2–3.0mm and can be customized;
Standard materials: Q235B, good toughness, easy to process; high-load conditions can choose Q355B high-strength material.
IV. Core Advantages
Light self-weight, strong bearing capacity: Thin-walled hollow cross-sectional structure, compared with channel steel, it saves steel under the same load, reduces the overall load of the building, and reduces the foundation cost;
Corrosion-resistant and durable: The galvanized layer isolates moisture and rain, the factory roof and wall can be used outdoors for a long time without rusting, and the service life can reach more than 15 years;
Efficient construction: Factory-prepared pre-pressed connection holes, no need for secondary drilling at the site, bolts are directly connected, significantly shortening the steel structure installation period;
Precise dimensions: Good flatness and straightness of cold bending forming, small joint gaps between components, higher flatness of roof and wall;
Strong plasticity: Can be cut to the required length, adjust the opening position, and adapt to various non-standard supports for factory buildings, photovoltaic systems, electromechanical equipment, etc.
V. Main Application Scenarios
Steel structure factory buildings: Roof C battens, wall C battens, combined with color steel tiles to form a protective system;
Photovoltaic projects: Main beams, secondary beams, ground anchors, cross braces of photovoltaic power stations, widely used in outdoor photovoltaic power stations;
Building accessories: Curtain wall keels, stair supports, door and window reinforcement frames;
Electromechanical equipment: Cable tray bases, equipment racks, pipe fixing supports;
Small steel structures: Simple warehouses, car sheds, greenhouse sheds for load-bearing frames.
VI. Differences from ordinary channel steel
C-shaped steel is cold-bent thin-walled, lightweight, with flanges to enhance bending resistance, mainly used for protective and supporting lightweight loads; channel steel is hot-rolled thick-walled, heavier self-weight, mostly used for large-load main beams, equipment bases, etc. The working conditions of the two are clearly distinguished.
