1) Quality standard of Galvanized Steel Coil Sheet: JIS G3302 GB/T251B, EN 10142-2000 and ASTM_A653_A653M-09；
2) Grade of Galvanized Steel Coils: SGCC (DX51D+Z) /SGCH(S550+Z)
3) Both soft and hard quality are available；
4) Surface finish of Galvanized Steel Coils : Zero,Regular, Mini,big spangle；
Surface Treatment of Galvanized Steel Coils: Passivation Chromated/Oiled/Unoiled.
Galvanized Steel Coil Description：
| Usage | Grade | Yield Strength (MPA) | Tensile Strength (MPA) | Elongation rate % |
| Punching galvanized steel | DX51D+Z | ~ | 270-500 | >=20 |
| DX52D+Z | 140-300 | 270-420 | >=22 | |
| DX53D+Z | 140-260 | 270-380 | >=26 | |
| DX54D+Z | 140-220 | 270-350 | >=30 | |
| Structure galvanized steel | S220GD+Z | >=220 | >=300 | >=18 |
| S250GD+Z | >=250 | >=330 | >=17 | |
| S280GD+Z | >=280 | >=360 | >=16 | |
| S320GD+Z | >=320 | >=390 | >=15 | |
| S350GD+Z | >=350 | >=420 | >=14 | |
| S400GD+Z | >=400 | >=470 | ~ | |
| S500GD+Z | >=500 | >=530 | ~ | |
| S550GD+Z | >=550 | >=560 | ~ |
FAQ：
Q: How's your product quality?
We can provide original mill test certificate, quality-control employee will check or test width, thickness, color, zinc coating, finish etc according to factory management system. and third-party can inspect goods according to customer requirements.
Q: Once the product received by customer were found not comply with products or contract, what will you do?
We will compensate the customer for all the loss without hesitation.
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