Products Description
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.
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Products Name
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S350GD S350GD S450GD S550GD zinc aluminum magnesium solar PV bracket ZM310 strut C profile solar bracket
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Standar
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we accept SGS test / AISI, ASTM, BS, DIN, GB, JIS,etc.
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Size
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Thickness: most popular 1.5mm,2.0mm,2.5mm,3.0mm ; 0.5--4.0mm
Size : 41*62mm ;41*52mm;41*41.33mm etc ,as customer requirements
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Zinc coating
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most popular is ZM275G / ZM310G /ZM 480 AND ZM510G; 30-510g/m2 -- zinc aluminum magnesium coated
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Material
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S350GD ; S450GD;S550GD or as customer requirements
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Surface Treatment
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Zn-Al-Mg zinc aluminum magnesium Coating or as customer requirements
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Usage
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For solar mounting brackets/solar power bracket/solar photovoltaic bracket
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Main market
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European country and all over the world
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Remark
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1.Payment term:T/T,L/C,Alibaba.com Trade Assurance .
2.Terms of trade:FOB,CFR,CIF 3.Minimum order:10 tons Or sample order (1 coil) 4.Lead time:on or before 20 days |
1. Overview of S350GD Steel Grade
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.
Key characteristics of S350GD include:
- High yield strength for structural stability
- Excellent cold-forming performance
- Consistent mechanical properties across batches
- Suitable for roll forming and punching processes
These features make S350GD an ideal base material for manufacturing solar mounting channel steel, where strength, precision, and long-term reliability are critical.
2. Understanding ZM275 Galvanized Aluminum Magnesium Coating
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.
The typical composition of ZM coating includes:
- Zinc (Zn) as the primary protective element
- Aluminum (Al) to improve barrier protection
- Magnesium (Mg) to enhance self-healing performance
- This advanced coating technology provides:
- Up to 2–3 times better corrosion resistance than conventional galvanized steel
- Excellent cut-edge protection
- Improved durability in harsh outdoor environments
For photovoltaic projects exposed to rain, humidity, UV radiation, and temperature fluctuations, ZM275 coating is especially advantageous.
3. 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.
4. Applications of S350GD ZM275 Channel Steel in Photovoltaic Projects
S350GD ZM275 galvanized aluminum magnesium channel steel is commonly used in:
- Ground-mounted solar power plants
- Rooftop photovoltaic systems
- Carport solar structures
- Agricultural photovoltaic installations
Its high strength ensures stability under wind and snow loads, while the advanced coating protects the structure from long-term corrosion.
5. Environmental and Economic Benefits
Another important advantage of S350GD ZM275 channel steel is its sustainability. The extended service life reduces the need for frequent maintenance or replacement, which lowers material consumption over time. Additionally, the high strength-to-weight ratio helps reduce steel usage per megawatt installed.
S350GD ZM275 galvanized aluminum magnesium channel steel is a highly reliable and cost-effective material for solar mounting systems. Its combination of high structural strength, superior corrosion resistance, and excellent processing performance makes it a preferred choice for modern photovoltaic projects worldwide. For developers and EPC contractors seeking long-term durability and performance, this material provides a strong technical foundation.
