Which is better 18 10 or 304 stainless steel?
2024-12-24
1. Corrosion resistance
18 10 Stainless steel: containing 18% chromium, 10% nickel and molybdenum, the addition of molybdenum makes its corrosion resistance, especially the resistance to chloride corrosion is stronger, in coastal areas or polluted industrial areas and other harsh environments, more able to maintain the surface clean and structural stability.
304 stainless steel: containing 18% chromium and 8% nickel, in the general atmospheric environment and fresh water environment, has good corrosion resistance, but in the above harsh environment, its corrosion resistance is relatively weak.
2. Application field
18 10 Stainless steel: due to its excellent corrosion resistance and biocompatibility, it is mainly used in the food industry, pharmaceutical industry, medical device manufacturing, watch jewelry and Marine steel and other fields with high corrosion resistance requirements.
304 stainless steel: A wide range of applications, covering food production equipment, general chemical equipment, atomic energy industry equipment, building curtain wall, side wall, roof, furniture, railings, tableware and other fields.
3. Processing performance
18 10 Stainless steel: its strength and hardness are relatively high, the processing difficulty is slightly greater, and the processing cost is relatively high, but after proper processing technology treatment, good molding effect and surface quality can still be obtained.
304 stainless steel: has good processing properties, easy stamping, bending, stretching and other forming processing, and the processing cost is relatively low, can meet the mass production and diversified processing needs.
4. Magnetism
18 10 Stainless steel: in the annealing state, the magnetism is weak, and it will recover a certain magnetism after cooling, but the magnetism is relatively not strong.
304 stainless steel: basically non-magnetic when annealed, there may be weak magnetism after cooling, but the magnetism is less obvious than 18 10 stainless steel.
5. Price
18 10 Stainless steel: due to its molybdenum element and higher production process requirements, its price is usually more expensive than 304 stainless steel.
304 stainless steel: The price is relatively close to the people, has a high cost performance, in the corrosion resistance requirements are not particularly harsh occasions, 304 stainless steel is a more affordable choice.
Therefore, if the use of poor environment, such as coastal areas, chemical pollution areas, or high corrosion resistance requirements of medical devices, food and drug processing and other industries, 18 10 stainless steel is better; If it is in an ordinary atmospheric environment, the corrosion resistance requirements are general, and taking into account cost and processing performance and other factors, 304 stainless steel is a more suitable choice.
