Detailed explanation of the main uses of several common stainless steel materials

many variable factors characterize the corrosive medium, namely chemicals and their concentration, atmospheric conditions, temperature, and time, so it is difficult to use and select materials without knowing the correct properties of the medium. however, the following can serve as a selection guide:

type 304 is a widely used material. it can withstand general rust in buildings, resist corrosion by food processing media (but corrosion may occur at high temperatures containing concentrated acids and chlorides), and resist organic compounds, dyes, and a wide range of inorganic compounds. type 304l (low carbon), has good resistance to nitric acid and is durable to medium temperature and concentration of sulfuric acid. it is widely used as liquid gas storage tanks, cryogenic equipment (304n), appliances and other consumer products, kitchen equipment, hospital equipment, transportation tools, and wastewater treatment equipment.

type 316 contains slightly more nickel than type 304 and contains 2%-3% molybdenum. it has better corrosion resistance than type 304, especially in chloride materials that tend to cause pitting corrosion. the model 316 has been developed for use as a sulfite pulp machine because it is durable against sulfate compounds. furthermore, its use has expanded to handle many chemicals in the process industry.

type 317 contains 3% to 4% molybdenum (the highest level obtained in this series), and contains more chromium than type 316, and has higher resistance to pitting corrosion and crack corrosion.

type 430 has a lower alloy content than type 304 and is used for high polishing and decorative purposes in mild atmospheres. it can also be used in nitric acid and food processing equipment. stainless steel pipe factory

type 410 has the lowest alloy content among the three general-purpose stainless steels and is used for high-load-bearing parts that require a combination of strength and corrosion resistance, such as solid parts. type 410 is corrosion-resistant in mild atmospheres, water vapor, and many mild chemical media.

type 2205 is superior to types 304 and 316 in that it has high resistance to chloride stress corrosion cracking and has approximately twice the strength.