ALZASTA

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Hot-dip 55% Al-Zn Alloy steel (ALZASTA) has outstanding corrosion resistance due to the strong oxide coating of aluminum and sacrificed protection of zinc. Bright gray appearance with unique smoothness, flatness, and fine spangles and Outstanding paintability. ALZASTA offers over 4 times more corrosion resistance than galvanized steel sheets in various corrosive environments. This is due to the sacrificial effect of galvanized steel sheet caused by stable corrosion product under corrosive environment and dense oxide coating creation by aluminized steel.

Applications

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  • Building interior / exterior materials (roof, wall, shutter, ceiling, floor)
  • Home appliance interior / exterior (refrigerator, outdoor AC unit)
  • Automobile parts
icon-image
  • Building interior / exterior materials (roof, wall, shutter, ceiling, floor)
  • Home appliance interior / exterior (refrigerator, outdoor AC unit)
  • Automobile parts

Product Details

Classification POSCO India Pune Processing Canter
Available Size
Thickness (mm)
0.35 ~ 2.30
Width (mm)
750 ~ 1,300
Weight (Ton)
Max 25
Product Grade
Commercial (CQ), Drawing (D), Deep Drawing (DD), Structural Steel Grades
Coating
40 gsm – 240 gsm
Inner Diameter (mm)
508(20”) / 610(24″)

Dimensional Tolerance

KS, JIS (unit - M)

Displayed Thickness (t) Width (W)
630<W
630<W<100
1000<W
0.35<t<0.40
+0.05
+0.05
+0.05
0.40<t<0.60
+0.06
+0.06
+0.06
0.60<t<0.80
+0.07
+0.07
+0.07
0.80<t<1.00
+0.07
+0.08
+0.08
1.00<t<1.25
+0.08
+0.08
+0.09
1.25<t<1.60
+0.09
+0.10
+0.11
1.60<t<2.00
+0.11
+0.12
+0.13
2.00<t<2.30
+0.13
+0.14
+0.15

EN (Based on DX51D-S550GD) (unit - M)

Displayed Thickness (t) Width (W)
W<1200
1200<W<1500
t<0.40
+0.05
+0.06
0.40<t<0.60
+0.05
+0.06
0.60<t<0.80
+0.06
+0.07
0.80<t<1.00
+0.07
+0.08
1.00<t<1.25
+0.08
+0.09
1.25<t<1.60
+0.11
+0.11
1.60<t<2.00
+0.14
+0.15
2.00<t<2.30
+0.16
+0.17

ASTM (unit - M)

Displayed Thickness (t) Width (W)
W<1500
1500<W
t<0.40
+0.08
+0.08
0.40<t<1.00
+0.10
+0.10
1.00<t<1.50
+0.13
+0.13
1.50<t<2.00
+0.15
+0.15
2.00<t<2.30
+0.30
+0.34

Width Tolerance

KS, JIS (unit - M)

Width (W) Tolerance
Max 1500
-0, +5
-0, +6

EN (unit - M)

Width (W) Tolerance
600<W<1200
+5
1200<W<1500
+6

ASTM (unit - M)

Width (W) Tolerance
600<t<1200
-0, +5
1200<t<1500
-0, +6

Quality Specifications

Specification Comparison

Classification Specifications
KS D 3770
JIS G 3321
ASTM A 792
DIN EN 10346
Commercial Quality
SGLCC
SGLCC
CS
DX 51D
Drawing Quality
SGLCD
SGLCD
DS
DX52D,53D
Deep Drawing Quality
SGLCDD
SGLCDD
–
DX 54D
Structural Steel
295MPa
SGLC295Y
SGLC400
Grade 275
S320GD
335MPa
SGLC335Y
SGLC440
Grade 340
S350GD
365MPa
SGLC365Y
SGLC490
Grade 410
S420GD
560MPa
SGLC560Y
SGLC570
Grade 550
S550GD

POSCO Steeleon Standard

Classification Thickness/M Y.P (MPa) T.S (Ma) Elongation
0.3<t<0.4
0.4<t<0.6
0.6<t<1.0
1.0<t<1.6
1.6<t<2.3
Commercial Quality
0.35<t <2.3
>250
>270
>20
>21
>24
>24
>25
Drawing Quality
–
>270
–
>27
>31
>32
>33
Deep Drawing Quality
–
>270
–
>29
>32
>34
>35
Structural Steel
295MPa
>295
>400
>16
>17
>18
>18
>18
335MPa
>335
>440
>16
>15
>16
>18
>18
365MPa
>365
>490
>12
>13
>14
>16
>16
560MPa
>560
>570
–
–
–
–
–

Notes: Please consult in advance for specifications other than those seen in the table.

BIS Certified

Steel Product Posco Item (Item code) Steel Works Items BIS Grade Thickness Width Length
Hot Dip Aluminium-Zinc alloy metallic coated steel strip & sheet (plain)
AZ
POSCO Steeleon, Korea
Strips (Coil)
YS250, YS 300, YS350, YS450 & YS500

Coating Class:- AZ70, AZ100, AZ150 & AZ200

Surface Finish: Normal & Skin Pass
0.3 mm ~ 1.50 mm
700 mm ~ 1,300 mm
Coil Form

Notes: The product standards are for reference. Please be sure to confirm the recent standards when making orders with Technical Services.

Customer Enquiry

Please connect with POSCO with your inquiries at the nearest Processing Center

Pune
Processing Center

Hyderabad Processing Center

Delhi Processing Center

Ahmedabad Processing Center

Chennai Processing Center