What aluminum tempering processes prevent denting from pet claws?

When selecting aluminum doors for homes with pets, specific tempering processes significantly enhance scratch and dent resistance. The T6 tempering process involves solution heat treatment followed by artificial aging, creating a hardened surface that effectively resists pet claw marks. Similarly, T7 tempering provides over-aging treatment that improves toughness while maintaining hardness, making the aluminum less prone to permanent deformation from animal scratches. These heat treatments alter the metal's crystalline structure, forming a protective layer that distributes impact forces rather than denting. For optimal pet-proof performance, choose aluminum alloys with Brinell hardness ratings above 95 HB after tempering. The combination of proper alloy selection (such as 6061 or 7075 aluminum) with appropriate tempering creates surfaces that maintain their appearance despite daily pet activity, eliminating concerns about claw-related damage while ensuring long-term durability.