Hot‑Dipped Galvanized (GI) Steel is carbon steel coated with a protective layer of zinc through a continuous hot‑dip process. This zinc coating provides long‑lasting corrosion resistance, making GI steel ideal for construction, automotive, HVAC, appliance manufacturing, and general fabrication.
Technical Specifications
Standards ASTM A653, A924, JIS G 3302, EN 10346
Grades Available CS Type A/B/C, FS Type A/B, DDS, EDDS, DX51D, DX52D
Thickness Range 0.015″ – 0.135″
Width Range 24″ – 60″
Coil Weight Up to 50,000 lbs (customizable)
Sheet Length Range 48″ – 144″ (custom lengths available)
Sheet Bundle Weight Up to 10,000 lbs (customizable)
Zinc Coating Weights G30 to G235 (0.30 – 2.35 oz/ft² total both sides)
Surface Finish Regular Spangle, Minimized Spangle, Zero Spangle
Edge Condition Mill Edge / Slit Edge
Mechanical Properties (Typical Values)
| Grade | Yield (ksi) | Tensile (ksi) | Elongation (%) |
|---|---|---|---|
| CS Type A | ≥ 33 | ≥ 45 | ≥ 20 |
| FS Type B | ≥ 30 | ≥ 42 | ≥ 28 |
| DDS | ≥ 28 | ≥ 40 | ≥ 30 |
| EDDS | ≥ 25 | ≥ 38 | ≥ 36 |
Applications
Roofing, wall panels, ductwork, framing, appliances, automotive parts, and general fabrication.
Optional Treatments
- Chromate or Non‑Chromate Passivation
- Oiling (Rust Prevention)
- Anti‑Fingerprint Coating
- Skin Pass / Tension Leveling
- Custom Slitting & Cut‑to‑Length