Why choose SS304 instead of SS201tube?
The price of 304 stainless steel tube is relatively high. Why not use 201 material instead to reduce the cost? On this point, we will analyze the reason for you:
1. The material composition of 201 is 17Cr-4.5Ni-6Mn-N, which is a Ni steel grade and a substitute for 301 steel. After cold working, it has magnetic properties, high manganese content, bright surface with dark black, and high manganese content is easy to rust.
2.304 material composition is 18Cr-9Ni, which is the most widely used stainless steel and heat-resistant steel. Moreover, 304 contains more chromium, and the surface is matte and does not rust.
The advantages of 304 stainless steel tube:
1.It has better heat resistance, dry burning resistance, mature technology, and the cost is slightly higher than that of 201 material.
2. Even though the same 304 stainless steel tube,the difference in quality and performance is also very large.
The difference:
The main difference between the quality of the 304 stainless steel is that the content of nickel is different. Nickel is an excellent corrosion-resistant material. After combining with chromium in the 304 stainless steeltube, the corrosion resistance and process performance of the 304 stainless steelcan be improved.
Therefore, in terms of material, 800, 840, and 316L are relatively good corrosion-resistant and high-temperature resistant element.
It can be seen that the most important thing about the heating tube is the different corrosion resistance. The corrosion resistance of 201 is very poor, and the heating tube is prone to breakdown, which affects the life of the heating tube, so the price is much cheaper. And 201 contains low nickel, the price is lower than that of 304, but the corrosion resistance is not as good as 304.
In the selection process, it is also necessary to consider the environment in which the heating tube is used, and select a suitable substrate heating tube, so that the heating tube can improve the working efficiency and work stably.
