Stainless steel buckle and galvanized steel buckle, how to choose?
Stainless steel and galvanized steel are two of the most popular materials used to produce buckles, and choosing the right one depends on the application and environment in which they are used. Different materials determine the durability, function and longevity of the buckle.

When to choose stainless steel buckles
Stainless steels are often described as iron-based alloys that contain at least 10.5% chromium for strength and corrosion resistance. The American Iron and Steel Institute (AISI) recognizes more than 50 stainless steel grades and supplies fasteners produced from AISI 304 and AISI 316 stainless steel.
Grade 304 stainless steel buckles contain 18% chromium and 8% nickel, while the material used to make 316 stainless steel buckles consists of 16% chromium, 11% nickel and 2.5% molybdenum, which helps improve corrosion resistance sex. In addition, we have electropolished the 316 stainless steel buckle to provide a smooth, shiny appearance and further enhance corrosion resistance.
If you need the best corrosion resistance and perfect welding performance, we recommend this buckle. This buckle can withstand harsh environmental conditions such as heat, humidity, acid rain, sea salt, and exposure to deicers and exposure to chemical elements such as chloride, sulfuric acid, and bromide. If the hasp is used in laboratory equipment, in the pharmaceutical and food processing industries, we will again offer products made of 316 stainless steel, as the molybdenum content in it helps avoid excessive metal contamination.
If the buckle will be used in moderate environmental conditions, you might also consider a 304-grade stainless steel buckle. Due to the high chromium content, these buckles also have good resistance to corrosion and oxidation. Grade 304 stainless steel hasps are commonly used in industrial equipment and machinery in the automotive, agricultural, and construction industries.

When to choose galvanized buckles
If you’re looking for the best way to protect basic steel surfaces from corrosion, you’ll find zinc. When zinc is electroplated onto the surface of ferrous steel, a corrosion-resistant layer of zinc carbonate is formed, which prevents moisture and air from entering the coated metal surface and preventing corrosion. The availability and relatively low cost of galvanizing make it a very popular choice for the entire industry, including buckle and fastener manufacturers.
When comparing the cost of galvanized and stainless steel hasps, the price of stainless steel products can be 3 times higher than comparable galvanized hasps due to higher material and production costs and shorter mold life. If you plan to use the buckle for indoor applications or in milder environmental conditions, galvanized products offer the best price/performance ratio.
These buckles have basic corrosion resistance, which is weaker than stainless steel, but still has 100 times better corrosion resistance than uncoated steel.
If you prefer a galvanized hasp but are not sure if it will meet your application requirements, we recommend a chrome finish. This is another way to enhance the corrosion resistance of galvanized coatings. Chromating refers to dipping a galvanized product into a solution of dichromate or chromic acid (basically a salt containing chromium and oxygen).