Acid Dipping Baths for Plating Lines

1. Low Carbon Steel:

• 4 to 10% (vol) sulfuric acid at room temperature
• 5 to 15% (vol) hydrochloric acid at room temperature
• 60 to 120 g/l dry acid salts at room termperature

2. High Carbon Steel

• 10% (vol) hydrochloric acid at room temperature

3. Stainless Steel:

• 20 to 50% (vol) sulfuric acid at 65 to 82oC followed by 1% sulfuric acid plus 0,1% hydrochloric acid at room temperature.
• 5 to 50% (vol) sulfuric or hydrochloric at room temperature.
• 120 g/l of dry acid salt at 70oC and cathodic current.

4. Copper and Copper Base Alloys:

• 4 to 10% (vol) sulfuric acid at room temperature

5. Lead and Alloys:

• 10 to 25% (vol) fluoboric acid at room temperature

6. Nickel:

• 5% (vol) sulfuric acid at room temperature
• 20% (vol) hydrochloric acid at room temperature
• 120 to 180 g/l dry acid salts at room temperature

7. Zinc:

• 0.25 to 1.0% (vol) sulfuric acid at room temperature

Post by Aluminum Anodizing