Which is better, 316 stainless steel pipe or 304 stainless steel pipe? How to differentiate?
Which is better, 316 stainless steel pipe or 304 stainless steel pipe? How to differentiate? 2020-05-17 In our daily life, the common ones are 304 and 316 stainless steel pipes. We can see many stainless steel pipe products every day. Many people may not know how to choose which material of stainless steel pipe and which one. Is it better? Today I will introduce the difference between 304 and 316 stainless steel pipes. What is the difference? 1. 304 stainless steel pipe 304 stainless steel is a universal stainless steel material with stronger rust resistance than 200 series stainless steel materials. . High temperature resistance is also better, and the general use temperature limit is less than 650℃. 304 stainless steel pipe has excellent stainless corrosion resistance and good intergranular corrosion resistance. For oxidizing acids, it is found in experiments that 304 stainless steel has strong corrosion resistance in nitric acid with a concentration ≤ 65% below the boiling temperature. It also has good corrosion resistance to alkaline solutions and most organic and inorganic acids. 304 stainless steel pipe 2, 316 stainless steel pipe, stainless steel pipe is a hollow long round steel with stronger rust resistance than 304 stainless steel. It is widely used in petroleum, chemical, medical, food, light industry, mechanical instrument and other industries. Conveying pipelines and mechanical structural parts, etc. In addition, when the bending and torsion strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also often used to produce various conventional weapons, barrels, shells, etc. Stainless steel pipe manufacturers 316 stainless steel pipes 3. How to distinguish between the fierce competition in any industry today, some people sell 304 stainless steel pipes at the price of 316, and the price of 316 stainless steel decorative pipes is more expensive than 304. It is invisible, we need to detect it. 316 stainless steel pipe contains molybdenum (Mo), which is more corrosive than 304 stainless steel pipe. Nowadays, the different grades corresponding to 304 and 316 are: 304 corresponds to 0Cr18Ni9, and 316 corresponds to 0Cr17Ni12Mo2. If you want to know more about it, you can directly search (304 and 316 corresponding grades, and chemical composition). It can be seen from this that the stainless steel tube with a real-standard steel seal can be directly seen what material it is at a glance, allowing users to know directly at a glance and buy reliable products. The above is about the difference between 316 stainless steel pipe and 304 stainless steel pipe. I hope to help everyone.