Qingdao Asia Sino Steel Co., Ltd-Supply all your steel needs
Galvanized steel coil, also known as GI coil, is a zinc-coated steel sheet coil produced via the hot-dipped galvanizing process. This protective zinc layer delivers exceptional corrosion resistance, making it a staple across construction, roofing, automotive, and appliance industries.
Our product range includes hot-dipped galvanized steel coil, spangle galvanized steel coil, and pre-painted steel coil (PPGI), with customizable specifications such as DX51D+Z grade, Z80/Z250/Z275 zinc coating, and thicknesses like 0.40 mm and 0.45 mm. Blue galvanized coil roll options are also available for enhanced surface protection.
| Standard | AISI,ASTM,GB,JIS | Material | SGCC,S350GD+Z,S550GD+Z,DX51D,DX52D,DX53D |
| Thickness | 0.16-1.2mm | Width | 600-1250mm |
| Tolerance | “+/-0.02mm | Zinc coating | 60-275g/m2 |
| Coil ID | 508-610MM | Coil Weight | 3-8 tons |
| Technique | Hot rolled, cold rolled | Package | seaworthy package |
| Certification | ISO 9001-2008,SGS,CE,BV | MOQ | 25 TONS (in one 20ft FCL) |
| Delivery | 15-20 days | Monthly Output | 10000 tons |
| Surface treatment: | oiled, passivation or chromium-free passivation, passivation+oiled, chromium-free passivation+oiled, resistant to fingerprints or chromium-free resistant to fingerprints | ||
| Spangle | regular spangle,minimal spangle, zero spangle,big spangle | ||
| Payment | 30%T/T in advanced+70% balanced;irrevocable L/C at sight | ||
| Remarks | Insurance is all risks and accept the third party test | ||
| Mechanical properties of galvanized steel | |||
| Usage | Grade | Yield strength(MPa) | Tensile strength(MPa) |
| Punching galvnaized steel | DC51D+Z | – | 270-500 |
| DC52D+Z | 140-300 | 270-420 | |
| DC53D+Z | 140-260 | 270-380 | |
| Structure galvanized steel | S280GD+Z | ≥280 | ≥360 |
| S350GD+Z | ≥350 | ≥420 | |
| S550GD+Z | ≥550 | ≥560 | |
Key advantages include long-term durability, cost efficiency, and versatile processability—perfect for roll-forming into roof tiles, structural panels, or appliance parts. Whether you need galvanized steel coil for roofing, manufacturing, our Qingdao-based facility ensures SGS/ISO certified quality and on-time delivery.
Looking for competitive galvanized steel coil prices or tailored solutions? Contact us today for your custom order.
