Requirements for Steel Performance in Solar Panel Mounting Systems

1) Tensile Strength and Yield Point: A high yield point allows for smaller steel section cross-sections, reducing structural weight, saving steel, and lowering overall project costs. High tensile strength increases the overall safety reserve of the structure, improving its reliability.

2) Plasticity, Toughness, and Fatigue Resistance: Good plasticity allows for greater deformation before structural failure, facilitating timely detection and remedial measures. Good plasticity also helps adjust local peak stresses. Since solar panel installation often involves forced installation to adjust angles, plasticity allows for internal force redistribution, making stress concentrations in some structural components more uniform and improving the overall load-bearing capacity.

Good toughness allows the structure to absorb more energy when damaged by external impact loads, especially in windy desert power plants and rooftop power plants where wind vibration is significant; the toughness of the steel effectively reduces the risk. Good fatigue resistance also gives the structure a strong ability to resist alternating and repeated wind loads.

3) Processability. Good processing performance includes cold working performance, hot working performance, and weldability. The steel used in photovoltaic steel structures must not only be easily processed into various forms of structures and components, but also ensure that these structures and components do not suffer excessive adverse effects on strength, plasticity, toughness, and fatigue resistance due to processing.

4) Service life. Since the design service life of solar photovoltaic systems is over 20 years, good corrosion resistance is also an important indicator of the quality of the support system. A short support life will inevitably affect the stability of the entire structure, leading to a longer investment payback period and reduced economic benefits of the entire project.

5) In addition to meeting the above conditions, the steel used in photovoltaic steel structures should also be easy to purchase, produce, and be inexpensive.

Solar Panel Mounting Systems requires roof hooks, rails, rail splices, middle and end clamps, etc. We have these accessories, please feel free to consult~