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PRODUCTS
Tube Internal Surface Treatment
Social requirement has been in need of advancing corrosion resistance of internal surface of steel tubes. Coping with the circumstance, a surface treatment method named as HINIC®, Double Layer Nickel, was developed on purpose of not only complying with use of alcohol-blended fuel and other fuels but also incresaing corrosion resistivity to tube internal surface.
TUBE INTERNAL SURFACE TREATMENT
| Type |
Salt Spray Test |
Special Characteristics & Uses |
| Red Rust Development |
Rusted Area 10% |
Cooper
3 µm |
- |
0.5hr. |
General use Tubing. |
Cooper
8 µm |
- |
24-48hr. |
Corrosion Resistance.
Brake System Tubing for Large Vehicles. |
Nickel
3µm |
1-2hr. |
3-8hr. |
Corrosion Resistance & Preventing Copper
Dissolution (Prevents damage caused by Sour Gasoline, Alcoholic & Alcohol - Blended
Fuels)
Fuel Lines. |
HINIC®
Double Layer Nickel |
 24hr. |
96hr. |
Corrosion Resistance. (Against Sour
Gasoline, Alcoholic and Alcohol - Blended Fuels & Low Grade Fuel).
Fuel Lines, Water & Air Piping. |
Corrosion Resistance to Alcohol-Blended Fuel and Sour Gasoline
a.Test Sample
ø8 x L100 Electric-resistance Welded Steel Tube
- Plain Coating(Corresponding to Copper Plating of 3 µm.)
- Nickel Plating
- HINIC® (Double Layer Nickel)
b.Test Solution
- Sour Gasoline : Regular Gasoline + Lauroyl per Oxide(3%)
- M-85(with Additive 1.) : Regular Gasoline + Formic Acid(100PPM) + Chlorine(100PPM) + Water(1%)
- M-85(with Additive 2.) : Regular Gasoline + Formic Acid(1%) + Formaldehyde(1%) + Water(1%)
c.Corrosion Resistance Test Result in each Solution
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