How to correctly choose suitable stainless steel?

Release time:

2024-09-12

Stainless steel is a very common product material in our daily lives. For example, most of the pots and pans we use in our daily lives are made of stainless steel. Stainless steel has a wide range of applications, ranging from stainless steel tableware to stainless steel building and decoration materials. There are many types of stainless steel. If classified according to the organizational structure, there are martensitic, austenitic, ferritic and duplex stainless steel structures. If classified according to the main chemical composition, it can be divided into chromium stainless steel and chromium-nickel stainless steel. Two major systems. The most common types of stainless steel we see in our daily life are 201, 304 and 316 stainless steel. So what are the main properties and uses of these types of stainless steel? Let me explain it next.

First let's talk about 201 stainless steel. Compared with 304 and 316, the uses and properties of 201 are very different. 201 stainless steel has strong acid and alkali resistance and is mainly used for decoration. Because 201 stainless steel has a high manganese content, the brightness of 201 stainless steel pipes is relatively high. 304 stainless steel is brighter, so common stainless steel items such as home or market decorations using 201 stainless steel, such as stair handrails, will look more beautiful.

304 stainless steel is the most common material among stainless steels. It has high temperature resistance, good processing performance and strong corrosion resistance. It is often used in the food industry, household products and medical equipment. The stainless steel cups and chopsticks we usually use are all made of 304 stainless steel, which are selected based on the excellent corrosion resistance of 304 stainless steel.

Finally, let's talk about 316 stainless steel. 316 stainless steel is the second widely used steel type after 304 stainless steel. It is mainly used in the food industry and surgical equipment. 316 stainless steel is a new type of 304 stainless steel developed after adding molybdenum element. Stainless steel has better resistance to chloride corrosion than 304 stainless steel, and 316 stainless steel is also resistant to ocean and atmospheric corrosion, so it is also used as "marine steel". Because 316 stainless steel has better corrosion resistance than 304 stainless steel, so 316 stainless steel It has replaced 304 and become the main steel for medical equipment.

The above are the characteristics and uses of all common stainless steel materials. I hope it will be helpful to your choice.

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