Do you know what material your safe is made of?

The national public security industry standard GA166-1997, "Anti-theft Safes," specifies the following material requirements for the safe's body: when using ordinary low-carbon steel plates, the plate thickness should be no less than 10 mm; when using low-carbon alloy steel plates, the plate thickness should be no less than 6 mm and it should be constructed from a single piece of steel. Safes, commonly known as cement safes, are, according to national standards, made with steel plates no less than 3 mm thick and a cement-foamed inner cavity. These safes are relatively heavy due to the presence of cement, but are also easily damaged by drills, losing their anti-theft function. When purchasing a safe, gently tap the body and listen to the sound. A good safe's body is entirely made of steel plates, producing a crisp sound when tapped. Some products consist of two thin iron sheets filled with mud and sand, producing a dull sound when tapped.

From a durability perspective, stainless steel is the best material, especially as a surface material, becoming shinier with use. It boasts high strength, strong corrosion resistance, and colorfastness. However, there are various types of stainless steel, primarily categorized into ferritic and austenitic. Ferritic stainless steel is magnetic, commonly known as "stainless iron," but it will rust over time and in harsh environments. Only austenitic stainless steel will not rust; the identification method is simple: test it with a magnet.

The surface anti-corrosion of safes mainly adopts three processes: 1. spray painting 2. electrostatic powder coating 3. baking paint

1. Spray painting

This method involves using a spray gun to disperse the paint into uniform, fine droplets and apply it to the surface of an object using air pressure. Its advantages include a wide range of color options and ease of operation. Disadvantages include poor corrosion resistance, difficulty in controlling the coating quality, and paint typically peeling off after 2-3 years.

2. Electrostatic powder coating

Electrostatic powder coating equipment (electrostatic powder coating machine) sprays powder coating onto the surface of the workpiece. Under the action of electrostatics, the powder will be evenly adsorbed onto the workpiece surface, forming a powdery coating. The powdery coating is then baked at high temperature to level and cure, becoming a final coating with different effects (different types of powder coatings have different effects). The advantages are that it is superior to painting in terms of mechanical strength, adhesion, corrosion resistance, and aging resistance, and the cost is also lower than that of painting for the same effect. The disadvantages are that due to the relatively high production line cost and limited color selection, it is only suitable for large-scale operations.

3. Baking paint

Baking varnish is a relatively new painting method (process) in furniture manufacturing. The process involves spraying several layers of paint onto a substrate that has been sanded to a certain roughness, followed by high-temperature baking to set the paint. It is generally used in the production of high-end safes. Its characteristics include bright colors, a beautiful and fashionable appearance, and a relatively good feel. Its corrosion resistance is between that of the two methods mentioned above. The disadvantages are its complex process and high cost.

Another component related to the anti-theft performance of a safe is the bolt. The materials are generally stainless steel and cast iron. Stainless steel is more robust than cast iron and has a longer lifespan. The thickness of the bolt varies depending on the size of the safe. When purchasing a safe, you should not only consider the number, material, and size of the bolts, but also the quality of the lock groove, as both work together to form a complete lock.