subject: Choosing Between 304, 316 And 321 Stainless Steel Pipes [print this page] Stainless steel pipes are all around usStainless steel pipes are all around us. Some of the architectural wonders of the world use these pipes of the models 304, 316 and 321. But remember, you can only choose the right kind of pipe if you know the difference between each one of them. So lets take a look at the differentiators between these various models of steel pipes:
1. 304 stainless steel pipes: This variety of pipes usually has no molybdenum content. The molybdenum is what makes the steel pipes resistant to corrosion. However, since these steel pipes are made from high quality stainless steel, they might be able to resist regular amounts of corrosion (but not excess levels as are seen in sea water or other elements containing chlorides). A lot would depend on the nature of the corrosive matter that the pipe is coming in contact with.
2. 316 stainless steel pipes: This variety of these pipes usually contains anywhere between 2% to 3% molybdenum which gives it higher corrosion resistance. This variety of pipes is more corrosion-resistant as compared to the 304 variety. A number of fittings in the sanitary industry are made of this variety of steel. Owing to their high resistance to corrosion, this variety of pipes is less likely to cracking due to stress corrosion. 4130 tubing is also used in such applications where high-level strength is required.
3. 321 stainless steel pipes: This variety of steel is the most preferred one for different kinds of exhaust systems because it can withstand very high temperatures without showing any signs of fatigue and cracking. This also makes it a preferred choice for different kinds of industrial applications such as turbos. This stainless steel tubing is available in different shapes and sizes, making it easy to be fitted anywhere.
Speaking of quality, it is the tensile strength of such pipes that matters the most. This is what makes them capable of withstanding different temperatures, tensions and materials. Having a good pipe set-up in place ensures that you are safeguarding your industrial process against vibrations, leakages, excessive heat and improper installation. Ideally, you should opt for a system that you can install manually with the help of hand tools. This way, you can ensure that any problems can be addressed by your maintenance team without having to wait and call the experts to disconnect or tighten for maintenance purposes. Also, it is equally important that these fitting have a robust grip as this is one of the important factors in ensuring better performance.
Now that you know the suitability of 316, 321 and 304 stainless steel pipe, you can make a more informed choice. For high strength applications, always opt for stainless steel tubing such as 4130 tubing.
