Product Parameter:
| Technical Standard | ASTM DIN GB JIS3302 |
| Grade | SGCC SGCD or Customer’s Requirement |
| Type | Commercial Quality/DQ |
| Thickness | 0.13mm-4.0mm |
| Width | 20mm-1500mm |
| Type of coating | Hot Dipped Galvanized |
| Zinc Coating | 30-275g/m2 |
| Surface treatment | Passivation/skin pass/non-oiled/oiled |
| Surface structure | Zero Spangle / Mini Spangle / Regular Spangle / Big Spangle |
| Package | Standard export package or customized |
| Hardness | HRB50-71 ( CQ Grade ) |
| HRB45-55 ( DQ Grade ) | |
| Yield strength | 140-300 (DQ Grade) |
| Tensile strength | 270-500 (CQ Grade) |
| 270-420 (DQ Grade) | |
| Elongation percentage | 22 (CQ Grade thickness less 0.7mm) |
| 24 (DQ Grade thickness less 0.7mm) |
Product Details
1. Prepainted Steel Coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized steel sheets.
2. The base metals for Prepainted Steel Coil consist of cold rolled, HDG electro-galvanized and hot-dip alu-zinc coated steel. The finish coats of Prepainted Steel Coil can be classified into groups as follows: polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc.
3. The production process has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.
Application
1）It is mainly used in construction,automotive ,metallurgical and electrical industries
2）In the construction industry,mainly used for making roofs and walls,prefabricated keel,pre-cast bulkhead,doors and windows.
3）In automotive industry ,mainly for body shell, chassis ,doors,fuel tanks, etc In metallurgical industry,mainly used as substrate of PPGI.
4）In electrical in industry,mainly for shell of electrical appliance.
