제품단면
기술사양
| Test Item | Test Methods |
|---|---|
| Erichsen | Cross cutting by 5mm interval and then pushing by 6mm in depth with Erichsen tester |
| Impact | Drop 500g & 1/2 inch diameter steel ball(Dupont Type) from a height of 500mm |
| Bending | 180。 1T Bending at 20℃(CR, EGI, GI) |
| Pencil Hardness | Check the trace mark when draw a line with Mitsubishi UNI pencil @ 45O direction & 500g pressure |
| Salt spray(Flat surface) | Spray with 5% salt water with 35℃ |
| Salt spray(Cross cutting) | Cross cutting with razor blade till it slightly touches on substrate metal and then test as same as above |
| Resistance to Alkali | 20±5℃× 5% NaOH × 24 Hrs |
| Resistance to Acid | 20±5℃× 5% HCl × 24 Hrs |
| Boiling water | 98℃ water × 1Hrs and leave it for 1hr |
| Pollution resistance | Leave coffee, olive oil for 24Hrs, and then erase with methyl alcohol |
| Test Item | PET/PVC Laminated Steel |
PET Laminated Steel |
PVC Laminated Steel |
PVF Laminated Steel |
PP Laminated Steel |
Related Standard |
|---|---|---|---|---|---|---|
| Erichsen | No Peeling | No Peeling | No Peeling | No Peeling | No Peeling | KS B 0812 KS M 3343 |
| Impact | No Peeling &Crack |
No Peeling &Crack |
No Peeling &Crack |
No Peeling &Crack |
No Peeling &Crack |
KS D 3520 |
| Bending | No Peeling &Crack |
No Peeling &Crack |
No Peeling &Crack |
No Peeling &Crack |
No Peeling &Crack |
KS D 3520 KS M 3343 |
| Pencil Hardness |
Over B grade |
Over HB grade |
Over B grade |
Over HB grade |
Over HB grade |
KS D 3520 |
| Salt spray (Flat surface) |
No change of surface CR:240Hrs EGI:360Hrs GI:360Hrs |
No change of surface CR:240Hrs EGI:360Hrs GI:360Hrs |
No change of surface CR:240Hrs EGI:360Hrs GI:360Hrs |
No change of surface GI:1000Hrs Rust& decoloration |
No change of surface CR:240Hrs EGI:360Hrs GI:360Hrs |
KS D 9502 |
| Salt spray (Cross cutting) (1 Cycle=8Hrs Spary+ 16Hrs Pause) (10 Cycle => 240Hrs) |
Rust& decoloration spread within 4mm from the cross cutting Edge CR:90Hrs EGI:240Hrs GI:240Hrs |
Rust& decoloration spread within 4mm from the cross cutting Edge CR:90Hrs EGI:240Hrs GI:240Hrs |
Rust& decoloration spread within 4mm from the cross cutting Edge CR:90Hrs EGI:240Hrs GI:240Hrs |
spread within 4mm from the cross cutting Edge GI:360Hrs |
Rust& decoloration spread within 4mm from the cross cutting Edge CR:90Hrs EGI:240Hrs GI:240Hrs |
KS D 9502 |
| Resistance to Alkali |
No change of Color&surface |
No change of Color&surface |
No change of Color&surface |
No change of Color&surface |
No change of Color&surface |
JS M 3343 JIS K 6744 |
| Resistance to Acid |
No change of Color&surface |
No change of Color&surface |
No change of Color&surface |
No change of Color&surface |
No change of Color&surface |
JS M 3343 JIS K 6744 |
| Boilling water |
No Peeling, Crack&Blister |
No Peeling, Crack&Blister |
No Peeling, Crack&Blister |
No Peeling, Crack&Blister |
No Peeling, Crack&Blister |
KS M 3343 JIS K 6744 |
| Pollution resistance |
No change of surface |
No change of surface |
No change of surface |
No change of surface |
No change of surface |
생산능력
| Item / Std. | POSCO | KS | JIS | ASTM |
|---|---|---|---|---|
| CR | CSP1 | SCP1(KSD3512) | SPCC(JISG3141) | A366 |
| EGI | EGS1 | SECC(KSD3528) | SECC(JISG3313) | A591-CQ |
| GI | CGCC | SGCC(KSD3506) | SGCC(JISG3302) | A526 |
| VCM | Thickness | Width | Length |
|---|---|---|---|
| 0.4 ~ 1.2 | 400 ~ 1350 | 300 ~ 5000 |
| Standard | Yield Point(Kg/mm2) | Tensile strength(Kg/mm2) | Elongation Ratio(%) |
|---|---|---|---|
| Less than 36 | Over 28 | Over 30 |
| Tolerance | Width | Length | Diagonal Tolerance |
|---|---|---|---|
| ±0.5 | ±0.5 | 1mm 이내 관리 |
