| Class |
Type |
Coating
Structure |
Quality Features |
Use |
| Corrosion Resistance |
Paintability |
Fingerprint Resistance |
Weldability |
Conductive |
| Phosphating |
PL |
Phosphate coating of 1~3g/㎡ for improvement of paintability |
○ |
● |
◎ |
◎ |
○ |
Painting |
| Chromating |
General Use(CL) |
Chromating of 5~15mg/㎡for improvement of corrosion resistance. |
○ |
◎ |
○ |
◎ |
◎ |
General Uses |
| Special Use (CM) (CH) |
Using CM(30~60mg/㎡) CH(80~160mg/㎡) to increase Cr coating weight for the purpose of strengthen corrosion resistance much than general Cr |
◎ |
◎ |
○ |
◎ |
◎ |
Inner Plate of Home Appliances |
| Lubricating Steel Plate |
General Cr Lubricating (LD) |
Available for machining without press oil because it is coated by lubricating resin after Cr treatment Cr:5~15mg/㎡ Resin:0.6~1.0um |
● |
○ |
● |
○ |
○ |
Motor Case, CassetteVTR Desk, Printer panel, Home appliance panel |
| After Cr Lubricating (LH) |
Available for machining without press oil because it is coated by lubricating resin after Cr treatment Cr:30~50mg/㎡ Resin:0.6~1.0um |
● |
○ |
● |
○ |
○ |
| Fingerprint Resistance Treatment |
General Thin Film Treatment (AD) |
Thin film is treated on a resin layer in order to improve conductivity compared to thick film steel.
(0.5~1.1um) |
● |
○ |
● |
○ |
○ |
Computer case, Cassette VTR desk |
| Special Thin Film Treatment (AH) (AM) |
After Cr treatment for high corrosion resistance and conductivity (AH:Cr30~60mg/㎡, AM:Cr80~160mg/㎡)
Then, thin film treatment on a resin layer (0.5~1.1um) |
● |
○ |
● |
○ |
○ |
Cassette VTR Desk,
Home appliance panel |
