Hard anodizing on almunium

Anodizing system under sulfuric acid at low temperatures and much higher currents than type II, commonly referred to as “hard anodizing”, is used to protect aluminum materials under severe abrasion conditions. paralysis. Hard anodizing forms a dense layer of anodic on the surface with a thickness of up to 100 µm. Due to the deeply formed micro-holes, Type III anodization can only be dyed to a dark color

Color table of hard anodized layers on some aluminum codes

Hard anodizing (type III) properties at ALUTEK

► Unrivaled wear resistance comparable to or better than heat-treated steel (HRC value 70) according to Suga and Taber test methods.
► Good corrosion resistance, when spraying salt up to over 1,000 hours.
► Good response to products that require stringent size standards.
► Meets applications requiring small tolerances.
► Resistance to conductivity up to 2,000 VDC.
► Has good heat dissipation properties.