Solar mounting structures
Racking, rails and brackets, where cut-edge protection and long outdoor service life are essential.
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Hot dipped Zn-Al-Mg alloy coated coil
A zinc coating alloyed with aluminium and magnesium, which holds out longer than zinc alone for the same weight and keeps protecting a cut edge. It is the coating specified for solar racking and for farm and outdoor structures.
- Grade / purity
- DX51D+ZM to DX53D+ZM, S220GD+ZM to S550GD+ZM and others
- Standard
- JIS / ASTM / EN
- Form
- Coil, 0.8 to 4.5 mm thick, 750 to 1600 mm wide
Applications
Agricultural and industrial buildings
Roofing, silos, grain storage, greenhouse frames and livestock housing exposed to humidity and ammonia.
Infrastructure components
Guardrails, poles, cable trays and drainage sections where extended coating life reduces maintenance.
Specification
| Standard | JIS / ASTM / EN |
|---|---|
| Coating Content | Low Al & Mg: Zn–(0.5–3%) Al–(0.4–2%) Mg Mid Al & Mg: Zn–(3–13%) Al–(2–4%) Mg High Al, Mid Mg: Zn–(50–60%) Al–(2–4%) Mg |
| Grades | DX51D+ZM / DX52D+ZM / DX53D+ZM S220GD+ZM / S250GD+ZM / S280GD+ZM / S320GD+ZM / S350GD+ZM S400GD+ZM / S550GD+ZM HD300LAD+ZM / HD340LAD+ZM / HD380LAD+ZM HD420LAD+ZM / HD460LAD+ZM / HD500LAD+ZM / HD550LAD+ZM / HD700LAD+ZM SGMCC+ZM / SGHCD+ZM / SGH340D+ZM / SGH400D+ZM / SGH490D+ZM / SGH540D+ZM |
| Coating | ZM20 – ZM600 g/m² |
| Spangle | Regular spangle / zero spangle |
| Sizes | Thickness: 0.8 mm – 4.5 mm Width: 750 mm – 1600 mm |
