Authentic Steel Group is a 32-year professional manufacturer and global supplier of hot-dipped galvanized steel strips (GI steel strip). Our galvanized strips are precision slit from prime hot-dipped galvanized coils, strictly produced to meet JIS G3302, EN 10147 and ASTM A653 standards. Available grades cover SGCC, SGCH, DX51D–DX54D, G350, G450 and G550 to match different strength requirements for fabrication and construction.
We offer custom slit GI strips with thickness ranging from 0.10 mm to 3.50 mm and slit width from 20 mm up to 600 mm. Our ultra-thin high-strength galvanized steel strip features tight thickness & width tolerance, clean straight edges and stable surface quality. We can provide regular spangle, minimized spangle and zero spangle options. Multiple zinc coating weights are optional, including Z80, Z120, Z180 and Z275,Z600. Each batch is tracked with test certificates. With reliable quality and competitive pricing, our galvanized strips have gained consistent trust and long-term cooperation from worldwide buyers.
Hot-dipped galvanized steel strip adopts cold rolled substrate with double-sided zinc coating. The zinc layer provides economical and effective anti-corrosion protection. It shows excellent bending, stamping and roll-forming performance, and its service life is far longer than uncoated bare cold rolled steel. Strict online surface inspection is carried out to avoid scratches, rust and coating defects before slitting and packing.
This GI strip is widely used for ERW pipe production, cable trays, C/Z purlins, metal strapping, hardware accessories, light steel frames and various stamped structural parts. We support customized slitting, packaging and third-party inspection according to customer requirements, and arrange stable shipment for bulk orders with flexible terms for global clients.
Frequently Asked Questions ：
Q1: What is galvanized steel strip?
A1: Galvanized steel strip (GI strip) is narrow steel slit from hot-dipped galvanized coils, with double-side zinc anti-rust coating.
Q2: What width can you slit?
A2: We provide custom width from 20 mm to 600 mm with precise slitting and edge trimming.
Q3: What zinc coating weights are available?
A3: Z80, Z120, Z180, Z275 and other customized zinc coating.
Q4: Main applications of GI steel strip?
A4: ERW pipe, cable tray, C/Z purlin, metal strap, hardware parts and light steel profiles.
