What is the difference between 304 stainless steel sheet and 301 stainless steel sheet?
Stainless Steel (Stainless Steel) refers to steel that is resistant to weak corrosive media such as air, steam, and water, or is stainless steel. It is also called stainless acid-resistant steel; it is resistant to corrosion by chemical corrosive media (acid, alkali, salt, etc.) The steel grade is called acid-resistant steel. Their corrosion resistance is different because of their differences in chemical composition. Ordinary stainless steel is not resistant to corrosion by chemical media, while acid-resistant steel is non-corrosive. Stainless steel has the ability to resist atmospheric oxidation—that is, rust resistance, and it also has the ability to resist corrosion in media containing acid, alkali, and salt—that is, corrosion resistance. However, the size of its corrosion resistance varies with the chemical composition of the steel itself and the environment in which it is used.
The material of stainless steel is roughly divided into: 201 stainless steel, 304 stainless steel, 304L stainless steel,316 stainless steel, and 316L stainless steel. Among daily necessities, 201 and 304 stainless steel are mostly used; while 316L stainless steel is generally used for home improvement, residential and medical use. Under normal circumstances, stainless steel will not rust, but there is still a risk of corrosion under special circumstances. 201 stainless steel is the easiest to rust, and the price is the cheapest; 316L stainless steel is the most expensive, quality and corrosion resistance It is also recognized as the best in the industry.
This article will tell you the difference between 301 and 304 stainless steel:
| Stainless steel model | 304 | 301 |
| Density(20℃, g/cm3) | 7.93 | 7.98 |
| Temperature resistance | 800℃ | 900℃ |
| Melting point | 1454℃ | 1470℃ |
| hardness | ≤201 | ≤187 |
1. The difference between the national standard number: 301 national standard number 1Cr17Ni7, 304 national standard number 0Cr18Ni9;
2. Composition comparison: Compared with 304 stainless steel, 301 material has more C content, less Cr and Ni content, increased tensile strength and hardness when cold, non-magnetic, but magnetic after cold; specific gravity of 304 stainless steel is 7.93g/cm3 (Grams/cubic centimeter), equal to 7.93 tons per cubic meter. It is also called 18/8 stainless steel in the industry. It is difficult to produce scars on the surface of the embossed material. It can withstand high temperatures of 800 degrees. It has the characteristics of good processing performance and high toughness. It is widely used in Industry and furniture decoration industry and food and medical industry.
3. Application field: 304 stainless steel is a universal stainless steel, a grade of stainless steel produced in accordance with the American ASTM standard. It is widely used to make equipment and parts that require good comprehensive performance (corrosion resistance and formability) 301 stainless steel is an austenitic chromium-nickel stainless steel with good oxidation resistance and corrosion resistance. Because a higher percentage of chromium and nickel makes it have much better creep strength, it can continue to operate at high temperatures and has good High temperature resistance, it starts to soften when the temperature exceeds 800℃, and the maximum use temperature is 1200℃.
Simply put, 301 material has the best high temperature resistance and corrosion resistance, 340 is low in price and cost-effective.