Products Description
S350GD is a structural steel grade defined under EN standards, specifically designed for applications requiring high strength and good formability. The designation "350" indicates a minimum yield strength of 350 MPa, which makes it suitable for load-bearing structures such as photovoltaic support frames.
ZM275 refers to a zinc-aluminum-magnesium alloy coating with a total coating mass of 275 g/m² (both sides combined). Compared with traditional hot-dip galvanized coatings, ZM coatings offer significantly enhanced corrosion resistance.
With the rapid global expansion of photovoltaic power generation, the demand for durable and corrosion-resistant structural materials has increased significantly. Among various options, S350GD ZM275 galvanized aluminum magnesium channel steel has become one of the most widely used materials for solar mounting systems, especially in ground-mounted and rooftop photovoltaic projects. This article provides a comprehensive introduction to S350GD ZM275 channel steel, including its material properties, coating characteristics, applications, and key advantages.
| tandard | ASTM,GB,JIS,EN |
| Grade | DX51D-DX54D, S350GD/S420GD/S550,G350-G550 |
| Thickness | 0.3-3.0 mm |
| Width | 30mm-900mm |
| Specific Width | 136/157/178/198/218mm or "make to order" |
| ZM coating | 30-300g/M2 |
| Tolerance | Thickness:+/- 0.02mm Width:+/-5mm |
| Coil ID | 508mm,610mm |
| Coil Weight | 3-8 tons |
| Production capacity | 5000 tons per month |
| Surface treatment | Chromated/anti-finger (transparent,green,golden) |
| Application | Building Purlin/Decking, Automobile, Household Appliance, PV Mounting/Bracket |
Application Scenarios
| Industry | End usage |
| Photovoltaic System | Solar Bracket |
| Solar Panel Stand/Mounting | |
| Solar Carport | |
| Solar Panel Mounting Rail | |
| Steel Structure | C Purlin, U Purlin,Z Purlin |
| Decking | |
| Automobile | Auto Parts |
| Household Appliance | Air Conditioner |
| Refrigerator |
Why Channel Steel Is Preferred for Solar Mounting Systems?
Channel steel (also known as C-channel or U-channel steel) is widely used in photovoltaic structures due to its optimized balance between strength and material efficiency. When combined with S350GD base steel and ZM275 coating, channel steel becomes a high-performance solution for solar mounting applications.
Key advantages of channel steel in solar projects include:
- High load-bearing capacity with lightweight design
- Easy installation and modular assembly
- Compatibility with bolts, clamps, and brackets
- Flexible customization of dimensions and hole patterns
These characteristics help reduce installation time and overall project costs while maintaining structural safety.
