The difference between stainless steel 301 and 304:
1. Different national standard numbers:
301 national standard number 1Cr17Ni7; 304 national standard number 0Cr18Ni9.
2. Different properties:
304 is a versatile stainless steel, which is widely used to make equipment and parts that require good comprehensive performance (corrosion resistance and formability) ; 301 stainless steel shows obvious work hardening phenomenon during deformation and is used in various occasions requiring higher strength.
3. Different materials:
Compared with 304 steel, 301 material has more C content and less Cr and Ni content. The tensile strength and hardness increase during cold working, and it is non-magnetic, but It becomes magnetic after cold working.
304 is a versatile stainless steel that is widely used to make equipment and parts that require good comprehensive properties (corrosion resistance and formability); 301 stainless steel shows obvious work hardening when deformed Phenomenon, it is used in various occasions requiring higher strength.
4. Different applications:
304 stainless steel is a common material in stainless steel, with a density of 7.93 g/cm?, and is also called 18/8 stainless steel in the industry. It is resistant to high temperatures of 800°C and has the characteristics of good processing performance and high toughness. It is widely used in industry, furniture decoration industry, food and medical industry.
301 is the steel type that is most easily strengthened by cold deformation. Through cold deformation processing, the strength and hardness of the steel can be improved, and sufficient plasticity and toughness can be retained. In addition, this steel has good resistance to atmospheric conditions. It has poor corrosion resistance in reducing media and poor corrosion resistance in chemical media such as acid, alkali and salt, so it is not recommended for use in harsh corrosive environments.
301 is mainly used in the cold working state for equipment parts that can withstand higher loads and want to reduce the weight of the equipment and make it rust-free.
Baidu Encyclopedia-304 Stainless Steel
Baidu Encyclopedia-301 Stainless Steel