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

Hengze 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 StandardASTM DIN GB JIS3302
GradeSGCC SGCD or Customer’s Requirement
TypeCommercial Quality/DQ
Type of CoatingHot Dipped Galvanized
Zinc Coating30-275g/m2
Surface TreatmentPassivation/skin pass/non-oiled/oiled
Surface StructureZero Spangle / Mini Spangle / Regular Spangle / Big Spangle
Coil Weight3-10metric ton per coil
PackageStandard export package or customized
HardnessHRB50-71 ( CQ Grade )
HRB45-55 ( DQ Grade )
Yield Strength140-300 (DQ Grade)
Tensile Strength270-500 (CQ Grade)
270-420 (DQ Grade)
Elongation Percentage22 (CQ Grade thickness less 0.7mm)
24 (DQ Grade thickness less 0.7mm)