Authentic Steel manufactures high-precision thin gauge GI coils ranging from 0.12mm to 0.35mm. Designed for roofing sheet roll forming and narrow steel strip profiling, our thin GI coils deliver consistent yield strength, clean surface finish, and excellent corrosion resistance for overseas buyers.
Selecting the right thin gauge GI coils requires strict control over thickness tolerances and coating uniformity. Authentic Steel specializes in exporting thin gauge galvanized steel coils with thicknesses ranging from 0.12mm to 0.35mm, engineered specifically for high-speed roll forming and deep profiling applications in overseas markets. Our manufacturing facility utilizes advanced cold rolling mills and continuous hot-dip galvanizing lines, allowing us to maintain exceptionally tight thickness precision across every production batch.
Thin GI coils are widely specified for agricultural corrugated roofing sheet manufacturing, ceiling T-grid channels, residential air ducting, electrical cable tray narrow strips, and light-gauge steel stud framing systems. The primary technical challenge with ultra-thin steel is preventing edge splitting, micro-cracking, and surface flaking during continuous bending and roll forming processes. Authentic Steel resolves this by combining optimized low-carbon base metal chemistry with precise tension leveling and advanced zinc adhesion techniques, ensuring excellent formability even under aggressive cold shaping.
| Parameter | Specification |
| Thickness | 0.12mm - 0.35mm |
| Width | 870mm - 1250mm or Customized |
| Zinc Coating | 30g/m² - 275g/m² |
| Coil Weight | 3 - 8 MT |
| Coil Inner Diameter | 508mm / 610mm |
| Material Grade | SGCC, DX51D+Z, CGCC |
| Surface Finish | Zero / Small / Regular Spangle |
Whether your downstream production requires full hard temper for ultra-high tensile strength corrugated corrugated roofing sheets, or commercial soft drawing quality for intricate metal stamping, our mill delivers tailored mechanical properties. Each coil undergoes systematic quality control checks covering oiling distribution uniformity, zinc layer thickness, 180-degree bend testing, and tensile strain verification prior to export. Strategically located near Tianjin Port, we streamline international shipping with prompt container loading and heavy-duty, moisture-proof seaworthy packaging to prevent transit corrosion.
In addition to master coils, our customized slitting machinery enables us to supply precise thin galvanized steel strip coils according to your exact dimensional constraints. This flexibility minimizes material waste and increases production throughput for specialized strip manufacturers. Overseas buyers can request full structural certification and chemical analysis sheets for every shipment. By utilizing automated thickness gauges across the entire strip length, we guarantee that thickness deviation remains under strict tolerances, keeping your automated roll-forming machines operating seamlessly without jam-ups or tool wear. Contact our international B2B export team today to receive mill-direct quotes, technical datasheets, and physical sample kits tailored to your specific market demands.
Contact Information
Email: bella@authsteel.com / bella@wanlusteel.com
Mobile/Tel/WhatsApp: +86 189 2041 0870[
