- Avadh Forging, Shapar(Veraval)
- info@jagrutimetal.com
- 98790-99821
Acid pickling is a chemical treatment process used to remove impurities, such as rust, scale, oxides, and other contaminants from the surface of metals. It prepares the metal for further finishing processes like passivation, electropolishing, coating, or welding by providing a clean, reactive surface.
Pickling involves immersing the metal in a bath of acid commonly hydrochloric, sulfuric, or nitric-hydrofluoric solutions at controlled temperatures and durations. The process chemically reacts with the oxide layer and dissolves it, without significantly affecting the base metal.
Hydrochloric Acid (HCl): Commonly used for carbon and mild steel.
Sulfuric Acid (H₂SO₄): Economical and effective for descaling.
Nitric-Hydrofluoric Acid Mixtures: Preferred for stainless steels and precision parts.
Citric Acid (Eco-Friendly Option): Used for less aggressive or environmentally conscious applications.
Removes Oxides & Scale: Ensures a clean base metal surface.
Improves Corrosion Resistance: Especially when followed by passivation.
Enhances Surface Finish: Prepares surface for further treatment or coating.
Non-Abrasive Cleaning: No mechanical damage to surface geometry.
Eco-Friendly Options Available: Safer alternatives like citric acid reduce environmental impact.
Stainless Steel Fabrication: Removal of weld burns and discoloration.
Piping Systems: Cleaning before installation in chemical, pharmaceutical, and food-grade applications.
Construction & Infrastructure: Surface prep for beams, plates, and reinforcement bars.
Heat Exchangers & Pressure Vessels: Descaling and oxide removal before service.
Pre-treatment in Galvanizing and Coating Plants.
Custom Tank Sizes: Suitable for both small components and large industrial parts.
Temperature-Controlled Baths: Ensures process consistency.
Ventilation & Scrubber Systems: For safe and eco-compliant fume extraction.
Automated Material Handling (Optional): Improves efficiency and reduces manual labor.
Wastewater Treatment Integration: Ensures compliance with environmental standards.
At Electrochem Finish, safety and sustainability are priorities:
