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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