Corrosion-Resistant Galvanized Steel Coils for Every Build

Galvanized Steel Coils

Galvanized Steel Coils

Galvanized Steel Coils

Galvanized steel coils are carbon steel substrates coated with zinc through a hot-dip process, producing a material that resists atmospheric corrosion through both barrier protection and cathodic action. The zinc layer, applied at 80 to 275 g/m², protects not just the coated surface but also exposed edges and scratches, making it effective in the humid and salt-air conditions common across the Philippines.

These coils combine the strength of mild steel with long-term weather resistance, making them a primary material choice for roofing, cladding, and structural applications in commercial and residential construction. As a trusted steel supplier in the Philippines, Metal Exponents stocks JIS G3302 SGCC and SGHC galvanized coils, serving contractors and fabricators who need precise coating weights and dimensional tolerances from order to delivery.

Galvanized Steel Coil

JIS G3302 SGCC

A commercial-quality hot-dip galvanized steel coil produced from cold-rolled base steel, SGCC is the standard specification for general forming and fabrication where a uniform zinc coating and consistent ductility are the primary requirements. Its soft temper supports roll-forming and bending operations without coating delamination, making it well suited to the high-volume production of light construction components.

Galvanized Steel Coil

Specifications/Technical Details:

Category Property Value/Description
Chemical Carbon ≤0.15%
Manganese ≤0.80%
Phosphorus ≤0.05%
Sulfur ≤0.05%
Mechanical Tensile Strength 270-410 MPa
Elongation ≥28% (t≥0.6mm)
Yield Strength ~140-280 MPa
Zinc Coating Mass Z08-Z27 (60-200 g/m²)
Physical Base Metal Thickness 0.25-3.2 mm

Common Applications

SGCC is the standard material for light construction and forming applications, including:

  • Corrugated roofing and wall cladding for residential and commercial buildings
  • Purlins and girts in pre-engineered metal buildings
  • Ceiling decking and partition systems

JISG 3302 SGHC

A hot-dip galvanized steel coil produced from hot-rolled base steel, SGHC is specified for heavy-duty structural applications where greater thickness, higher yield strength, and load-bearing capacity are part of the design requirement. Its hot-rolled base delivers the toughness and section rigidity that large-span and load-bearing assemblies require, with coating weights suited to sustained exposure in demanding site conditions.

Galvanized Steel Coil

Specifications/Technical Details:

Category Property Value/Description
Chemical Carbon ≤0.15%
Manganese ≤0.80%
Phosphorus ≤0.05%
Sulfur ≤0.05%
Mechanical Tensile Strength 270-410 MPa
Yield Strength ≥205 MPa
Elongation ≥26%
Physical Zinc Coating Mass Z12-Z27 (90-200 g/m²)
Base Metal Thickness 1.60-6.00 mm

Common Applications

SGHC is specified for heavy construction applications where section strength and weather resistance are both required, including:

  • Deep corrugated roofing for industrial warehouses
  • Structural purlins and side girts in large-span buildings
  • Floor decking and mezzanine platforms

Build with Confidence with Metal Exponents

Galvanized steel performs only as well as the supply chain behind it. Metal Exponents has spent over 45 years building sourcing relationships with mills in Japan, Korea, and China that meet the coating weight specifications and field performance standards Philippine construction projects demand. Every coil we supply is traceable to its source mill and aligned to JIS G3302 grade specifications.

With warehouses in Manila, Cebu, and Davao, we deliver nationwide and carry stock across the full range of thicknesses your roofing and structural applications require. Get in touch with us today.

Galvanized Steel Coil