Product Name | Prepainted galvanized/galvalume Steel Coil |
Thickness | 0.12mm to 1.5mm(±0.02mm) |
Width | 30mm to 1250mm(±2mm) |
Zinc Coating | Primer: 5-7 microns Top: 10-25 microns Back: 5-25 microns or as request |
Coil Weight | Normally 3- 5 tons, or as your request |
Hardness | Softy, half hard and full hard quality |
Paint Coating | PE,PVC,PVF,PVDF ect |
Coating Layer | 2/1,2/2,3/3 painting & drying |
Glossy | high glossy,normal glossy,lower glossy |
Color | As Ral color or as sample
|
Standard | ISO,JIS,ASTM,AS EN |
Grade | Q195 Q235 Q345 SGCC SGCH SGC340 SGC400 SGC440 SGC490 SGC570 SGHC SGH340 SGH400 SGH440 SGH490 SGH540 DX51D DX52D DX53D DX54D DX55D DX56D DX57D S220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GD SS230 SS250 SS275 SS340 SS550 |
Payment | 30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy |
What Does Galvanized Mean?
Galvanizing is the process of applying a protective coating to steel or iron. The coating is made from zinc and is used to halt the formation of rust. Galvanization is important because it provides long-lasting protection for steel and iron products.
How Does Galvanization Protect the Base Metal Underneath?
1. The zinc coating prevents corrosive substances like acid (acid rain for example) from reaching the metal underneath.
2. Galvanization protects from rusting. When the coating is scratched, zinc will still “sacrifice its anode” easier than the base metal does – which protects it from rusting.
3. The zinc protects the metal by corroding faster than the base metal. Sometimes a special ingredient called a “chromate” is added to the galvanized metal, this makes it corrode even faster. It may sound like that is not what you want to happen, but remember the zinc corroding before the metal is what protects the metal underneath from rusting.