Decoding the Distinctions: SUS304 vs. 201 Stainless Steel Mesh Materials

The choice of stainless steel mesh material is often recommended to be SUS304. However, it has come to light that some manufacturers opt for 201 stainless steel instead of 304 stainless steel to minimize material costs. The challenge lies in the difficulty for ordinary individuals to discern the difference between 201 and 304 stainless steel. 

To safeguard our users and maintain market integrity, it is crucial to expose deceptive practices by substandard manufacturers. The resolution lies in understanding the chemical composition: 201 has a chemical formula of 1Cr17Mn6Ni5, while 304 has a formula of 06Cr19Ni10. The primary distinction between them lies in the presence of nickel and chromium. 201 contains manganese and lacks nickel, while 304 includes nickel and chromium. As a result, they exhibit variations in color, corrosion resistance, acid resistance, and resilience.

The color of stainless steel mesh is determined by its composition. The manganese content in 201 stainless steel imparts a darker hue, while 304 stainless steel appears white. In terms of corrosion resistance, 201 stainless steel is prone to rusting in humid or high salt environments, whereas 304 stainless steel, lacking manganese, remains resistant to rust. Additionally, 304 stainless steel exhibits superior acid and alkali resistance due to its higher nickel content compared to 201.

Another differentiating factor is toughness. 304 stainless steel demonstrates better toughness, whereas 201 stainless steel is harder and more brittle. When subjected to a hardness test, the surface of 201 stainless steel will scratch, while 304 stainless steel remains unscathed.

By unraveling these disparities, users can make informed decisions and avoid potential pitfalls when selecting stainless steel mesh materials for their applications.