Galvanised / Coated Steels
Steel that has been treated with a protective coating, typically zinc or a zinc-alloy, to prevent corrosion and extend the life of the metal.
Overview
Galvanised and coated steels are central to automotive Body-in-White (BIW) structures, providing essential corrosion resistance through sacrificial protection. These materials range from mild steels to Advanced High-Strength Steels (AHSS), allowing for thin-wall construction that reduces vehicle weight without compromising safety. The coatings are applied through hot-dip galvanizing, electrogalvanizing, or galvannealing to ensure compatibility with automotive paint and welding processes. Their use is critical for meeting long-term vehicle durability warranties in diverse environmental conditions.
Automotive Applications
Similar Materials
Advanced Aluminium Alloys (5000 Series)
Aluminum Alloy
Non-heat-treatable aluminum-magnesium alloys known for exceptional corrosion resistance and excellent weldability.
Advanced Aluminium Alloys (6000 Series)
Aluminum Alloy
Heat-treatable aluminium alloys containing magnesium and silicon as the principal alloying elements.
Aluminium
Aluminium Alloy
Lightweight metallic element used extensively in automotive construction
Mild Steel
Low Carbon Steel
Mild steel is a type of carbon steel with a low carbon content, typically between 0.05% and 0.25% by weight.
Properties
Category
Type
Coated Steel
Available Colors
Available Forms
Key Properties
- Corrosion resistant
- High tensile strength
- Excellent weldability
- Sacrificial protection
- Good formability
- High durability
Technical Specifications
Density
7.85 g/cm³
Tensile Strength
270-1500+ MPa
Temperature Resistance
-40°C to 200°C
Sustainability
Sustainability Rating
Steel is highly recyclable with well-established infrastructure, though primary production remains energy-intensive. The zinc coating is typically captured in the flue dust of electric arc furnaces during the recycling process.