1, the chemical composition is different.301 stainless steel has lower chromium and nickel content and higher carbon content; 304 stainless steel has higher chromium and nickel content, usually containing 8% nickel and 18% chromium, which makes 304 stainless steel better than 301 stainless steel in terms of corrosion resistance.
2, the performance is different. 301 stainless steel in the cold working process shows obvious work hardening phenomenon, which makes it in the cold working after the strength and hardness, but retains enough plasticity and toughness; 304 stainless steel has a better corrosion resistance and ductility, is usually used in the field of food, medical treatment, kitchenware and so on.
3, the use of different. 301 stainless steel because of its high strength and hardness, often used in the need for high-strength requirements of the occasion, such as the automotive industry, aerospace industry, etc.; 304 stainless steel because of its good corrosion resistance and molding, is widely used in the manufacture of equipment and parts requiring good overall performance, such as corrosion-resistant containers, tableware, furniture, etc..
4, the price is different. Due to the better corrosion resistance and molding of 304 stainless steel, its price is usually higher than 301 stainless steel.