High-Performance Galvalum Steel Coils for Philippine Construction

Galvalum Steel Coils

Galvalum Steel Coils

Galvalum Steel Coils

Galvalum steel coils are cold-rolled steel substrates coated with a 55% aluminum-zinc alloy through a hot-dip process. The coating combines aluminum’s barrier protection with zinc’s ability to protect exposed cut edges, making it well suited to the humid, salt-air, and high-UV conditions common across the Philippines.

Beyond corrosion protection, these coils reflect heat naturally, reducing thermal gain in roofing applications and lowering cooling costs for buildings in tropical climates. Available in thicknesses from 0.27 to 2.0 mm and widths from 600 to 1250 mm, they are a practical and durable material choice for roofing and cladding projects of all scales. As a trusted steel supplier in the Philippines, Metal Exponents stocks JIS G3321 SGLCC Galvalum coils imported from Japan and Korea, serving contractors, fabricators, and roofing manufacturers who need reliable coating performance from order to delivery.

Galvalum Steel Coils

JIS G3321 SGLCC

A commercial-quality hot-dip aluminum-zinc coated steel coil produced from cold-rolled base metal, SGLCC provides uniform coating on both sides for consistent protection and a clean surface finish. The coating composition of 55% aluminum, 43.4% zinc, and 1.6% silicon resists red rust and edge creep, making it a dependable choice for exposed roofing installations where maintenance access is limited or scheduled infrequently.

Its ductility and soft temper support roll-forming and profiling operations without coating damage, making it well suited to the high-volume production of standing seam and corrugated roofing profiles that are common in Philippine construction. The grade is available across a range of coating weights and base thicknesses, giving fabricators the flexibility to match material specification to project requirements without over-ordering on coating mass.

Galvalum Steel Coils

Specifications/Technical Details:

Category Property Value/Description
Chemical Base Metal (C) ≤0.15%
Base Metal (Mn) ≤0.60%
Base Metal (P) ≤0.10%
Base Metal (S) ≤0.05%
Coating Composition 55% Al, 43.4% Zn, 1.6% Si
Mechanical Tensile Strength 270-410 MPa
Yield Strength 140-280 MPa
Elongation ≥30% (t≥0.5mm)
Physical Coating Mass AZ30-AZ150 (22-110 g/m²)
Base Thickness 0.27-2.0 mm
Width Range 600-1250 mm

Common Applications

SGLCC is the standard specification for long-span roofing and walling applications where coating performance and formability are both required, including:

  • Standing seam roofing for commercial warehouses and factories
  • Corrugated roofing sheets for coastal residential housing
  • Wall cladding and sandwich panel sheeting for industrial buildings

Find the Right Solution for Your Builds at Metal Exponents

Galvalum coils require precise coating control at the mill level. Metal Exponents sources from mills worldwide with a proven track record in tropical market supply, bringing 45 years of import experience to every order we fulfill. Our team of engineers and supply specialists is available to help you select the right coating weight and thickness for your specific roofing or cladding application.

Custom slitting to your exact width requirements is available, and our warehouses in Manila, Cebu, and Davao mean your stock is never far from site. Get in touch with us today.

Galvalum Steel Coils