Steel Materials Guide
Understand the key differences between our Carbon and Galvanized steel offerings to choose the right material for your project — balancing strength, corrosion resistance, cost, and application requirements.
Carbon Steel
Density: 7,850 kg/m³ · Grade: S275/S355/Q235
The backbone of industrial fabrication. Carbon steel offers exceptional tensile strength and is ideal for structural, load-bearing, and indoor applications. Cost-effective and highly weldable — the default choice when a protective coating or paint system will be applied.
Galvanized Steel
Density: 7,800 kg/m³ · Zinc coating: 85–200 µm
Carbon steel with a hot-dip zinc coating that provides a self-sacrificing barrier against corrosion. The preferred choice for outdoor, coastal, or humid environments where longevity with minimal maintenance is the priority. Service life of 50–70+ years in most environments.
Performance Comparison
- Carbon Steel
- Galvanized Steel
Corrosion Resistance — Estimated Service Life (years)
Mechanical Strength Comparison
- Carbon Steel
- Galvanized Steel
Side-by-Side Property Comparison
| Property | Carbon Steel | Galvanized Steel |
|---|---|---|
| Corrosion Resistance | Low (needs coating) | High (zinc barrier) |
| Tensile Strength | 400–550 MPa | 380–500 MPa |
| Weldability | Excellent | Requires care (zinc fumes) |
| Outdoor Suitability | Needs coating | Excellent |
| Cost | Lower upfront | Higher upfront, lower lifecycle |
| Maintenance | Regular recoating needed | Minimal |
| Machinability | Excellent | Good |
| Custom Fabrication | Ideal | Possible (pre-fab coating) |