Comparison of various lock materials

Locks have different materials, different functions, and different applicable scopes. When people buy locks, they are generally worried that the locks are not durable or the surface will rust or oxidize soon after use. Let me introduce to you the comparison of various lock materials:

From the standpoint of durability, the best material should be stainless steel, especially when padlocks are used as surface materials, the more they are used, the brighter they are. It has good strength, strong corrosion resistance and unchanged color. However, there are many types of stainless steel, mainly divided into ferrite and austenite. Ferritic stainless steel is magnetic, commonly known as stainless iron. It will rust after a long time and in a bad environment. Only austenitic stainless steel will not rust. The identification method is very simple. You can identify it with a magnet.

Copper locks have good mechanical properties, good corrosion resistance and processing properties, and are bright in color, especially copper forged handles and other lock decorations, with a smooth surface, good density, and no pores or sand holes. It is strong and rust-proof, and can be used to plate 24K gold or placer gold and other surface treatments. It looks magnificent, noble and generous, and adds a lot of color to people's homes.

Zinc alloy materials are much worse in strength and anti-rust ability, but its advantage is that it is easy to make parts with complex patterns, especially pressure casting. The locks with more complicated patterns seen in the market are most likely to be made of zinc alloy, and consumers must carefully identify them.

Aluminum or aluminum alloy, ordinary aluminum alloy (except for aerospace use) is soft and light, and the material strength is low, but it is easy to process and shape, suitable for kitchen and bathroom doors.

Steel has good strength and low cost, but it is easy to rust. It is generally used as a material for the internal structure of locks and is not suitable for external decoration.

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