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Galvanized Steel C Channel
1. Product Overview
C-channel steel is a cold-formed section steel with a cross-section shape resembling the letter "C", typically manufactured from carbon steel coils through cold roll-forming process. Its unique open-section design provides good strength and stiffness while maintaining light weight and easy installation. C-channel steel is widely used in building structures, machinery manufacturing, vehicle modification, and storage equipment, serving as an important component in modern light steel structures and support systems.

2. Key Features
Lightweight & High Strength with Good Stiffness
C-channel steel features edge stiffening through cold-forming process, maintaining sufficient strength and stiffness while being lightweight. This design makes it ideal for light steel structures, capable of bearing certain loads while being easy to handle and install.
Keywords: lightweight C-channel, high strength light steel structure, excellent stiffness performance, edge stiffening design, convenient installation material
Standardized Dimensions & Flexible Compatibility
Manufactured according to national standards with uniform specifications and precise dimensions, perfectly compatible with various connectors and matching materials. Standardized hole positions and regular geometric shapes facilitate connections with other components, improving construction efficiency.
Keywords: standardized C-channel, precise dimension control, flexible component matching, quick connection system, modular design
Excellent Economy & Material Utilization
Compared to hot-rolled section steel, C-channel offers better cost-effectiveness with high material utilization and minimal waste. Its production process is energy-saving and environmentally friendly, allowing custom lengths to reduce on-site cutting and material loss.
Keywords: economical channel steel, high material utilization, energy-saving production, customized length, reduced material waste
Diverse Surface Treatments & Anti-corrosion Options
Various surface treatments available based on usage environment, including hot-dip galvanizing, pre-galvanizing, and painting. These treatments meet requirements in different corrosive environments, extending product service life.
Keywords: multi-surface treatment C-channel, galvanized anti-corrosion protection, good environmental adaptability, long service life, customized protection

3.Technical Parameters of C-Channel Steel
Parameter | Specification Range | Standard / Notes |
Steel Grade | Q235, Q345, S350GD, S550GD | GB/T, EN |
Channel Size | C80 - C380 | Height 80mm - 380mm |
Flange Width | 40mm - 100mm | ±1.5mm tolerance |
Web Height | 80mm - 380mm | ±2.0mm tolerance |
Thickness | 1.2mm - 3.2mm | ±0.1mm tolerance |
Lip Length | 15mm - 25mm | Curled edge length |
Standard Length | 6000mm - 12000mm | Custom lengths available |
Tensile Strength | 350 MPa - 550 MPa | ASTM A370 |
Yield Strength | 235 MPa - 450 MPa | ASTM A370 |
Elongation | 15% - 25% | in 50mm |
Surface Treatment | Galvanized, Painted, Pre-galvanized | Custom available |
Flatness | ≤2mm/m | For web surface |
Straightness | ≤1.5mm/m | Total ≤10mm |
4. Application Scenarios
Building Wall & Roof Purlins
Used as wall beams and roof purlins in light steel structure buildings, providing support for wall and roof panels. The lightweight characteristic reduces building load, while the regular section facilitates insulation material installation and decorative surface construction.
Machinery Equipment Frames & Supports
Used in frame structures, protective cover supports, and machine bases for various industrial equipment. Standardized dimensions facilitate equipment modular design, while good rigidity ensures operational stability.
Storage Racking & Logistics Equipment
Applied in racking beams and columns, as well as support systems for logistics conveyor lines. The regular inner cavity facilitates connector installation, while its strength meets load-bearing requirements for goods storage.

5. FAQs
Q1: What is the difference between C-shaped channel steel and U-shaped channel steel?
A1: Main difference lies in edge design. C-channel has inward-curled edges enhancing sectional stiffness; U-channel has no curled edges with simpler section. C-channel generally offers better load capacity and stability than U-channel.
Q2: How to calculate the maximum span of C-shaped channel steel?
A2: Calculate based on specification size, material strength, load conditions, and support conditions. Usually refer to manufacturer's load tables or use professional structural calculation software. Important projects should be designed by professional engineers.
Q3: How to carry out anti-corrosion treatment on C-shaped channel steel?
A3: Select based on usage environment: galvanizing for general indoor use; hot-dip galvanizing for humid environments; dual protection with galvanizing plus painting for corrosive environments. Regular inspection and maintenance extend service life.
If you want to know more, please feel free to contact us.