Hard Anodized Aluminum Parts 25Microns - 250Microns Corrosion Resistant

Excellent corrosion resistant anodized aluminum parts with hard anodizing for electronic accessories. Oxide film thickness ranges from 25-250 microns.

Hard anodizing is a specialized surface treatment for aluminum and aluminum alloys that creates a thick oxide film up to 250 microns. Key characteristics include:

• Microhardness of 1500 kg/mm² on pure aluminum (400-600 kg/mm² on alloys)
• Poor thermal conductivity with 2050°C melting point
• High resistivity with breakdown voltage up to 2000V after sealing
• Excellent atmospheric corrosion resistance and wear resistance
• Strong bonding with substrate metal

• Surface hardness up to HV500 for aluminum alloys
• Oxide film thickness 25-250 microns
• 50% penetration into alloy with 50% surface adhesion
• Excellent insulation (2000V breakdown voltage)
• Superior wear resistance (1.5-3.5 mg/1000 revolutions)
• Non-toxic process and final product

Primary Methods: Sulfuric acid hard anodizing (DC method) and Oxalic acid hard anodizing (AC/DC method), with sulfuric acid being most widely used.

Ideal for aluminum components requiring:

• High wear resistance
• Heat resistance
• Excellent insulation properties

Widely used in defense, mechanical components, medical accessories, and electronic parts manufacturing.