Which is more expensive, 304 stainless steel pipe or 316?

Update: 14-09-2021

In daily life, there are more and more stainless steel […]

In daily life, there are more and more stainless steel pipe products everywhere, and the stainless steel pipe materials used are also different. Some use 304 material, some are 316 material. People often ask 304 stainless steel pipe or 316 which is more expensive. In fact, the two are the same. More expensive than 316.

The density of 304 stainless steel is 7.93g/cm3, and the density of 316 stainless steel is 8.03g/cm3. In essence, there is no obvious difference between the two. They are one 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.

First of all, in terms of application, 304 stainless steel pipes are widely used, and they have good corrosion resistance. It can be used for anti-theft windows, stair handrails, guardrails, anti-theft doors, automobile exhaust pipes, medical appliances, etc. And 316 adds Ni, Cr, Mo elements on the basis of 304, which is higher in density, corrosion resistance, and high temperature resistance than 304. Therefore, it is widely used in various industrial fields (seawater equipment, chemistry, dyes). , Papermaking, oxalic acid, fertilizer and other production equipment).

Secondly, chemical composition and performance comparison: 304 stainless steel pipe chemical name: 06Cr19Ni10, 316 stainless steel pipe chemical name: 06Cr17Ni12Mo2. 06 means carbon content is less than 0.08, Cr19 means chromium content is 19, and NI10 means nickel content is 10 . Among them, the element that determines the rust and corrosion resistance of stainless steel pipes is nickel, and its price is also relatively expensive. The purity and thickness of 304 and 316 are different, and 316 has better corrosion resistance and is more resistant to rust. So the price will be more expensive.

Of course, stainless steel shower pipe the two are used in different scenarios due to different purposes. When using stainless steel pipes, we choose suitable stainless steel pipes according to the applicable scenarios. In some places, 316 stainless steel pipes may not be required. For example, in the dry areas in the north, 304 stainless steel pipes are sufficient. , Good corrosion resistance, not easy to rust. But if used in southern coastal areas, sewage treatment plants need to use 316, which is not easy to corrode.