1. Stainless Steel

One of the most commonly used materials for smart key blades is stainless steel. This material is known for its durability and resistance to corrosion, making it suitable for daily use and varying environmental conditions. Stainless steel offers strength and rigidity, ensuring that the blade maintains its shape and function over time. Its smooth surface finish also allows for precise cutting and fitting into vehicle locks, contributing to reliable performance.

2. Brass and Nickel Alloys

Brass and nickel alloys are also popular choices in the production of smart key blades. Brass provides excellent machinability, allowing for detailed key designs with accurate dimensions. It also resists rust and offers a balance of strength and flexibility. Nickel alloys, on the other hand, enhance wear resistance and provide a sleek appearance. These materials are often chosen for their compatibility with various plating options that improve both aesthetics and durability.

3. Zinc Alloy and Coated Metals

Some smart key blades are made from zinc alloys or coated metals, which combine strength with design flexibility. Zinc alloy can be molded into precise shapes, making it ideal for modern smart keys that integrate electronic components. Additionally, surface coatings such as chrome, nickel, or titanium plating are applied to enhance scratch resistance and provide a polished finish.

https://www.hc-key.com/product/foldable-key-blank/
HCK-05B 05# Foldable Key Blade For Toyta(Previa Wish)Great Wall Suzuki Dipper
Applicable models：    Toyota(Previa Wish)Great Wall Suzuki Dipper
Product material:    Brass + electroplating
Product specification:     2.2×10×53.8
Product unit weight:    6.2 g
Product advantages:     Easy cutting, easy processing.