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What is GALVALUME?

GALVALUME Steel is carbon steel coated with aluminum-zinc alloy by a hot-dip process. The coating composition is 55% aluminum, 43.4% zinc and 1.6% silicon. Silicon is added not to enhance the corrosion performance, but to provide good coating adhesion to the base steel substrate when the product is roll-formed, drawn, or bent during fabrication.

GALVALUME Steel Application

GALVALUME Steel has superior corrosion resistance more than traditional galvanized steel, so it is widely used for:

  • Roofing and siding applications
  • Unexposed automotive parts
  • Appliances
  • Furniture
  • Outdoor cabinetry
  • Computer cases
  • Gutters

GALVALUME Steel Specification

We can supply different specifications of GALVALUME steel coils/sheets. Similar to our galvanized steel specifications, only the price will be some different.

Technical Standard ASTM DIN GB JIS3302
Grade SGCC SGCD or Customer’s Requirement
Type Commercial Quality/DQ
Thickness 0.13mm-4.0mm
Width 600mm-1500mm
Type of Coating Hot Dipped Galvanized
Zinc Coating 30-275g/m2
Surface Treatment Passivation/skin pass/non-oiled/oiled
Surface Structure Zero Spangle / Mini Spangle / Regular Spangle / Big Spangle
ID 508mm/610mm
Coil Weight 3-10metric ton per coil
Package Standard export package or customized
Hardness HRB50-71 ( CQ Grade )
HRB45-55 ( DQ Grade )
Yield Strength 140-300 (DQ Grade)
Tensile Strength 270-500 (CQ Grade)
270-420 (DQ Grade)
Elongation Percentage 22 (CQ Grade thickness less 0.7mm)
24 (DQ Grade thickness less 0.7mm)
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