NO.4 Stainless Steel Sheets Suppliers

The surface treatment of NO.4 stainless steel sheets is usually done using mechanical polishing methods. First, a belt grinder or sander is used to rub the surface of the sheet back and forth until the surface reaches the desired finish. Then, a tool called a “brush” or “polishing wheel” is used on the surface for a more detailed treatment to give it a certain texture and luster. The final result depends on the precision of the polishing machine and the type of polishing wheel used, and usually the NO.4 surface looks somewhat similar to the texture of lacquer.

The difference between NO.4 stainless steel sheets and HL stainless steel sheets is that the surface roughness and gloss are different.NO.4 stainless steel sheets have a higher surface roughness, generally between 180#-320#, with a frosted effect, and the surface is softer and not reflective.HL stainless steel sheets have a higher surface gloss, generally between 320#-600#, with a mirror effect, the surface is smoother and can reflect the surrounding light. Can reflect the surrounding light. Therefore, they are also different in the application occasions, NO.4 stainless steel sheets are commonly used in decoration, construction, kitchenware and other fields, while HL stainless steel sheets are suitable for electronics, automotive, chemical, medical and other fields.

The surface treatment of NO.4 stainless steel sheets is mechanical polishing, and its color is generally natural silvery white or light gray.NO.4 stainless steel sheets are a surface treatment that is rendered by rolling, grinding or polishing the surface, independent of the color.NO.4 stainless steel sheets are mainly ground on the surface of stainless steel sheets by abrasive machines or abrasive belt grinders, forming fine abrasive marks, thus giving its surface a silk-like luster, while increasing its surface corrosion and abrasion resistance. Therefore, the color of NO.4 stainless steel sheets is generally silvery gray, which is different from the natural silvery white or light gray of HL stainless steel sheets.

The difference between NO.4 stainless steel sheets and NO.8 stainless steel sheets is mainly in the surface treatment.The surface of NO.4 stainless steel sheets is frosted, showing a uniform fine texture and matte effect, with certain anti-fingerprint and anti-scratch performance, commonly used in architectural decoration, kitchen equipment and other fields. The surface of NO.8 stainless steel sheets is mirror polished, showing an extremely smooth mirror effect, with good reflective properties and high-end aesthetics, commonly used in high-end decoration, electronic products, hotels and other fields.

NO.4 stainless steel sheets have very good corrosion resistance. Its main component is chromium, which forms a dense layer of chromium oxide in the air and can prevent further oxidation of the steel, thus acting as an anti-corrosion agent. In addition, NO.4 stainless steel sheets also contain a certain amount of nickel and other alloying elements, which improves its corrosion resistance. When the surface of NO.4 stainless steel sheets is scratched or damaged, the chromium oxide layer can repair itself, thus maintaining its anti-corrosion properties. Therefore, NO.4 stainless steel sheets are widely used in some applications with high requirements for corrosion resistance.

Toggle ContentThe processing difficulty of NO.4 stainless steel sheets is generally not very high. It is a conventional stainless steel surface treatment that does not require special processing or equipment, so traditional stainless steel processing methods such as cutting, bending, welding and drilling can be used. However, since NO.4 surface treatment leaves some minor scratches, care needs to be taken to avoid further damage to the surface during the cutting and bending process so as not to affect the aesthetics and surface quality. Also, for certain complex shapes and curves, special processing may be required to maintain the flatness and smoothness of the surface. In general, NO.4 stainless steel sheets are not very difficult to machine, but some details and techniques need to be paid attention to.