What is 0.1-0.5mm electro-galvanized steel coil?
0.1-0.5mm electro-galvanized steel coil is a precision material made by uniformly galvanizing on ultra-thin cold-rolled steel substrates through electrolytic process. It has excellent surface quality and forming performance and is designed for high-precision processing requirements.
0.5-1.0mm Electro-galvanized coil used for ?
0.1-0.5mm electro-galvanized steel coils are ultra-thin and precise, with an elongation of ≥35% (SECE grade up to 40%), and are widely used in electronic components (mobile phone shielding covers, Type-C interfaces), new energy (lithium battery steel shells, pole ear materials) and other fields.
What is the equivalent of 0.1-0.5mm electro-galvanized steel coil?
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Alternative scenarios |
Equivalent materials |
Advantages comparison |
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Mobile phone shielding cover |
Stainless steel SUS304 (0.1mm) |
30% lighter, 40% lower cost |
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Lithium battery steel shell |
Aluminum foil (0.2mm) |
2 times stronger, better puncture resistance |
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Medical surgical instruments |
Titanium alloy (0.3mm) |
Only 1/5 of the cost, easy to process |
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Automotive sensor parts |
Engineering plastic (0.5mm) |
Higher temperature resistance (can withstand 200℃) |
0.1-0.5mm Electro-galvanized Steel Coil Testing Method Standard
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Test items |
Standard methods |
Qualified indicators |
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Coating thickness |
ISO 3497 X-ray fluorescence |
Nominal value ±1μm |
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Surface ion contamination |
IPC TM-650 2.3.25 |
NaCl equivalent ≤1.56μg/cm² |
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Thermal shock reliability |
JEDEC JESD22-A104 |
-55℃~125℃ 1000 times without delamination |
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Migration current test |
IEC 60068-2-14 |
Leakage current <0.1μA @50V |
What is the difference between electro-galvanizing(EG)and hot-dip galvanizing(GI)?
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Parameters |
Electro galvanizing (EG) |
Hot-dip galvanizing (GI) |
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Surface quality |
Bright and smooth (Ra≤0.8μm) |
Zinc flower texture (Ra≥1.2μm) |
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Zinc layer control |
5-50g/m² (accurate to ±1g) |
40-180g/m² (fluctuation ±10%) |
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Cost |
Higher (+20%-30%) |
Low |
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Recommended scenarios |
Precision electronics/medical/automotive exterior parts |
Architecture/home appliance interior/non-exposed parts |