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Products & Specification.
Electrlytic Galvanized Iron |
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The electrical galvanized steel are the product to put zinc coats via electrolytic methods, which enhance anti-corrosive property, have smaller and more uniform plating attachment quantity than GI (hot-dip galvanized steel), and are excellent in painting finishing. Besides, there are a variety of material selection choices and workability is excellent because this can maintain material characteristics of original sheet. |
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| Mechanical Properties |
| Div. |
Pure-Zn (KS/JIS) |
Bending Test |
Mechanical Properties
(Kgf/mm2,(%)) |
Remarks |
| Angle |
Radius |
YP |
TS |
EL |
| Type 1 |
JIS G3313 SECC |
180° |
Close Adhesion |
- |
28min |
37min |
For lock forming |
| Type 2 |
JIS G3313 SECD |
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39min |
For drawing |
| Type 3 |
JIS 3313 SECE(N) |
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40min |
For non-aging deep drawing |
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| Zinc Attachment Quantity |
Standard attachment
quantity of zinc (1 side)
g/m2 |
Mininum attachment quantity
of zinc (1 side) g/m2 |
Attachment quantity
marking symbol |
In case of coatin
of same thickness |
In case of coatin
of same thickness |
| 10 |
8.5 |
8 |
E8 |
| 20 |
17 |
16 |
E16 |
| 30 |
25.5 |
24 |
E24 |
| 40 |
34 |
32 |
E32 |
| 50 |
42.5 |
40 |
E40 |
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| Specification |
| Division |
Specification |
| No Treatment |
Chemical processing and unoiled processing |
| Oiling |
Used for spray painting products with application of rust preventive oil |
| Phosphate processing |
Phosphate film processing of 1-3g/m for improvement of coatability |
| Phosphate + anti-finger |
Improvement of anti-finger, drawing quality and corrosion resistance |
| Anti-finger |
1 coat / 1 bake |
| Lubricated steel plate |
Can process without press oil with application or lubrication resin after palting |
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| Characteristics of Electro-Galvanized Steel |
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Pure Zn Electro-Galvanized Steel
- Workability
Since it has less coating weight and has no heat-affected zones during the manufacturing process compared with GI and GA. It secures the material characteristics and workability at the same levels of those of the base metals , that is cold-rolled (CR) sheet.
- Corrosion Resistance
Fe can be protected the sacrificial anode reactions caused by the galvanic actions of Zinc(Zn) and, in case that it is exposed to air, a thin film is formed on the surface to prevent it from being corroded.
- Printability
Its flat and even surface secures the good conditions for painting and a phosphate treatment improves its paint adhesion and anti-corrosion properiies after painting.
- Weldability
Pure Zn galvanized steel have a wide contact area when pressure is applied and, though their weldability is a little poor since their electrical conductivity is inferior to that of cold-rolled steel. It is possible to conduct a spot or a seam welding with satisfaction along with the appropriate welding conditions and the application of some post-treatments.
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| Post-Treatment Code |
| Division |
Codes |
Full Name |
Quality Characteristics |
| Non-Treated |
XX |
- |
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| Phosphate |
PL
PM |
Phosphate Light
Phosphate Matellic |
Paintability, Corrosion Resistance
Paintability, Corrosion Resistance, Workability |
| Anti-Finger Printed |
AC
AF
AG
AM |
Antifinger Conductivity
Antifinger Formability
Antifinger General
Antifinger Modified |
Conductivity, Corrosion Resistance
Workability
Corrosion Resistance
High Corrosion Resistance Printability |
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| Status of Post-Treated Products |
| Division |
Structure of Coated Layers |
Quality Characteristics |
| Zn (Non-Treated, Oiling) |
Zn
Steel |
Surface Appearrance, Various Types of Post-Treament Methods |
| Phosphate |
Phosphate
Zn
Steel |
Painting Adhesiveness, General Corrosion Resistance |
| Anti-Fingerprinted |
Resin for Anti-fingerprinting
Special Resins
Zn
Steel |
Anti-Fingerprinting Property, Solvent Resistance, Workability |
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| Status of Post-Treated Products |
| Division |
Structure of Coated Layers |
Main Usage |
| Zn (Non-Treated, Oiling) |
Zn
Steel |
Color Steel Sheets, Home Appliances Components of Furniture |
| Phosphate |
Phosphate
Zn
Steel |
For Painting For General Home Appliances |
| Anti-Fingerprinted |
Resin for Anti-fingerprinting
Special Resins
Zn
Steel |
Deck, Computer Related Components, General Home Appliances |
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