Construction Material High Quality Hot Dip Galvanized Steel Coil Z275 is produced by passing the Full Hard sheet which has undergone the acid washing process and rolling process through the zinc pot, thereby applying zinc film to the surface. It has excellent corrosion resistance, paintability, and workability due to Zinc’s characteristics. Usually, hot-dipped galvanized steel sheet and galvanized steel coil process and specifications are basically the same.
Construction Material High Quality Hot Dip Galvanized Steel Coil Z275 is the process of applying a protective zinc coating to a steel sheet or iron sheet, to prevent rusting.
Advantage:
● Excellent anti-corrosion, paintability, and processability due to the self-sacrificing characteristic of zinc.
● Available to select and produce the desired amount of zinc gilded and in particular enables thick zinc layers
(maximum 120g/m2).
● Classified as either zero spangle or extra smooth depending on whether the sheet undergoes skin pass
treatment.
Thickness（mm） | 0.12-5.0 | Surface Quality Level | FB/FC |
Width（mm） | 90-1500 | Surface Treatment | C/R/C5/A/O/U |
Zinc Layer Weight（g/㎡） | 60~275 | Range Of Application | Refrigerator, Washing Machine, Air Conditioning, Microwave Oven, Lighting, TV, Audio And Video |
Grade | Q195 Q235 SGCC SGCH SGC340 SGC400 SGC440 SGC490 SGC570 SGHC SGH340 SGH400 SGH440 SGH490 SGH540 DX51D DX52D DX53D DX54D S220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GD |
Surface treatment | Regular Spangle, Minimum Spangle, Zero Spangle, Big Spangle |
Hardness | Soft Hard(HRB60), Medium Hard(HRB60-85), Full Hard(HRB85-95) |
Surface Treatment | Chromated/Non-Chromated, Oiled/Non-oiled, Skin Pass |
SURFACE QUALITY LEVEL |
Name | Code | Instructions |
Ordinary surface | FA | Ordinary Surface |
Higher finish surface | FB | Small corrosion points, dark spots, band marks, zinc particles, passivation defects are allowed |
High finish surface | FC | No corrosion spots are allowed, but minor indentation, scratch, zinc flow ripple, minor passivation defects are allowed in a small area, and the FA surface is maintained on the other side at least |
Product Number | Yield Strength | Tensile Strength | Elongation After Fracture Ratio A80(%)(>=) |
|
|
| Nominal Thickness |
|
|
| <=0.04 | 0.04-0.06 | 0.60-1.0 | 1.0-1.2 |
SGCC | 205 | 270 | - | - | - |
|
SGCD1 | - | 270 | - | 34 | 36 | 38 |
SGCD2 | - | 270 | - | 36 | 38 | 40 |
SG340 | 245 | 340 | 20 | 20 | 20 | 20 |
SG400 | 295 | 400 | 18 | 18 | 18 | 18 |
SG440 | 335 | 440 | 18 | 18 | 18 | 18 |
Surface Finish
Surface Structure | Mini Spangle | Big Spangle |
Weight of zinc coating | Zinc > 20g/sm | Zinc > 30g/sm |
Surface Finish |
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