Which is better, 304 stainless steel pipe or 316 stainless steel pipe?

In daily life, stainless steel pipe products are really becoming more and more ubiquitous. The stainless steel materials used in each product are also different. Some use 304 material, while others are 316 material. For Xiaobai, it is impossible to distinguish the products. 304 stainless steel pipe and 316 stainless steel pipe, which is more expensive and which is better. In fact, I want to say that the two are slightly more expensive than 316. Today, I will share with you the difference between the two.

304 stainless steel is a very common stainless steel with a density of 7.93g/cm3, and 316 stainless steel has a density of 8.03g/cm3, also known as 18/8 stainless steel. In essence, there is no obvious difference between the two, and they are both a kind of many stainless steels, which have the characteristics of acid resistance, alkali resistance, easy processing and high toughness. But if you divide it carefully, you can see the difference between the two materials. Its metal products have the characteristics of high temperature resistance and good processing performance, so they are widely used in industry, medical industry, furniture decoration industry and food industry. Specifically, it can be used for anti-theft windows, stair handrails, guardrails, anti-theft doors, automobile exhaust pipes, medical equipment and so on.

On the basis of 304, 316 has added elements such as Cr and Mo, which has higher density, better corrosion resistance and higher temperature resistance than 304. In addition, 304 stainless steel contains an average of 9% nickel, while 316 stainless steel contains an average of 12% nickel. . Nickel in metallic materials can improve high temperature durability, improve mechanical properties, and improve oxidation resistance. Therefore, the content of the material directly affects the overall performance of the material. 316 stainless steel is widely used in various industrial fields (seawater equipment, chemistry, dyes, papermaking, oxalic acid, fertilizers, etc.).

Of course, the two have different uses and different usage scenarios, so we need to choose suitable stainless steel products according to the applicable scenarios when using stainless steel products.