|
Surface structure
| surface structure |
code |
application |
| Q/ASB 385-2004 |
Q/ASB 387-2004 |
| normal galvanized spangle |
N |
R |
Mainly applicable to the civil use and the normal building that needn't the further painting |
| mini galvanized spangle |
M |
Z |
Applicable to the condition when the normal galvanized spangle can't meet the requirements of the surface form |
| no spangle |
F |
F |
- |
| skin pass |
S |
S |
Applicable to the base sheets of the household appliance sheet, the automobile sheet and the color-coated sheet with the high surface requirements |
Surface treatment
| surface treatment |
code |
| passivation |
C |
| oiling |
O |
| no oiling |
U |
Surface quality
| grade |
name |
features |
| FA |
normal level |
Allowing the defects of tiny corrosive spots, uneven galvanized spangle, dark spots, strip trail, tiny passivated defects and tiny zinc particles. |
| FB |
higher level |
Not allowing the defects of erosive spots, but allowing the defects of skin passing trail, scratching trail, zinc flowing wave trail, light passivated defects and one kinds of the spangle structure within a small allowed limit. Only applying to the S surface structure. |
| FC |
highest level |
The better side of the two sides of the sheet can't destroy the evenness of the bright and clear surface of the high quality spray paint and the other side should be up to FB level. Only applying to the S surface structure. | | |
