Product Summary

Longze Galvanized C-Shaped Steel Solar Mounting Brackets are designed for high-load structural support in ground-mounted and industrial rooftop PV projects. Manufactured from premium

Q235B/Q355B Carbon Steel, our C-Channel profiles feature precision-punched holes for flexible installation and are finished with heavy-duty galvanization to ensure a 25-year maintenance-free lifespan.

• ✔ High-Strength Carbon Steel: Optimized for structural rigidity, providing superior resistance to bending and torsion compared to standard light-gauge profiles.
  
  

• ✔ Precision Punched Design: Features a systematic hole pattern that allows for rapid, bolt-on assembly without the need for on-site welding or drilling.
  
  

• ✔ Heavy-Duty Galvanization: Coated with a minimum 65μm - 85μm Hot-Dip Galvanized layer, meeting international anti-corrosion standards for extreme outdoor exposure.

• Standards: DIN 6923, ISO 4161, ASME B18.16.4.
  
  

• Material: Q235B, Q355B Carbon Steel (ASTM A36 / A572 equivalent).

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  Surface Finish: Hot-Dip Galvanized (HDG) / Pre-Galvanized / Powder Coated.
  
  

• Application: Ground Mount Solar Farms, Industrial Flat Roofs, Photovoltaic Carports.
  
  

Mechanical Properties & Material Hardness

• Certified tensile strength and yield performance for Carbon Steel C-Channels.

• Material Grade	Tensile Strength (Rm)	Yield Strength (ReH)	Elongation (A80)	Impact Test (KV)
  Q235B (Standard)	370 - 500 MPa	≥ 235 MPa	≥ 26%	27 J (20°C)
  Q355B (High-Tensile)	470 - 630 MPa	≥ 355 MPa	≥ 21%	34 J (20°C)
  SUS 304 (Bolts)	≥ 700 MPa	≥ 450 MPa	≥ 30%	N/A

Standard C-Channel Specifications & Loading

• Precision dimensioning for Photovoltaic Roof Racking systems.

• Profile Size (mm)	Wall Thickness	Hole Pattern	Max Wind Load	Max Snow Load
  41 x 41 (Standard)	2.0 - 2.5 mm	14x30mm Slotted	60 m/s	1.5 KN/m²
  41 x 62 (Heavy)	2.5 mm	14x30mm Slotted	70 m/s	2.0 KN/m²
  41 x 82 (Double)	2.5 - 3.0 mm	Customized	85 m/s	2.8 KN/m²

Surface Treatment & Corrosion Resistance

• Ensuring structural integrity for long-term Ground Mount Solar installations.

• Coating Type	Process	Coating Thickness	Salt Spray Test	Best Application
  Hot-Dip Galv. (HDG)	Molten Zinc	65μm - 85μm	1000+ Hours	Coastal / High Humidity
  Pre-Galvanized	Coil Coating	20μm - 30μm	200+ Hours	Dry Inland Zones
  Zinc-Mag.-Alu. (ZAM)	Alloy Coating	15μm - 25μm	1500+ Hours	High Ammonia / Farming