1. SUS30408 ??is an improvement of SUS304.
S30408 ??stainless steel chemical composition, from the chemical composition table, it is known that the Cr component of the chemical composition of s30408 ??has increased by one content, and the P content has also decreased. To put it simply, it is slightly improved than ss304.
2. The implementation standards are different.
S30408 ??is the brand of the new standard SUS304 that implements the national standard GB/T24511-2009. It is mainly used in pressure-bearing equipment, boilers, pressure vessel flanges, etc. For specific requirements, please refer to the GB/T24511-2009 standard, which mainly regulates thickness tolerances, chemical composition, etc.
3. The numbers are different.
S30408 ??is the UNS number and is a stainless steel material, equivalent to China's 0Cr18Ni9 (the new brand is 06Cr19Ni10), the American ASTM standard 304 stainless steel, and the Japanese standard SUS304.
304 stainless steel is a common material in stainless steel with a density of 7.93g/cm3. It is also called 18/8 stainless steel in the industry. It is resistant to high temperatures of 800 degrees and has the characteristics of good processing performance and high toughness. It is widely used in industry, furniture decoration industry, food and medical industry.
Extended information
Use of SUS304:
304 stainless steel is a common raw material in stainless steel, with a density of 7.93g/cm3, also called 18 in the industry /8 stainless steel. It is resistant to high temperatures of 800 degrees, has good processing performance and high toughness, and is widely used in industry, furniture decoration and food and medical industries.
304 is a versatile stainless steel that is widely used in the manufacture of equipment and parts that require outstanding comprehensive functions (corrosion resistance and formability).
In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 18% chromium and more than 8% nickel. 304 stainless steel is a trademark of stainless steel produced in accordance with American ASTM standards.