Pipe Fitting Selection: Stainless Steel and Carbon Steel

Choosing between stainless steel or carbon steel is a problem that many engineers face at some point. Both carbon steel and stainless steel tubing are good choices for a variety of applications. In this article, we will delve into the basics of various steel alloys and their uses and discuss the differences between carbon steel fittings and stainless steel fittings.

 

 

Choosing between stainless steel or carbon steel is a problem that many engineers face at some point. Both carbon steel and stainless steel tubing are good choices for a variety of applications. In this article, we will delve into the basics of various steel alloys and their uses and discuss the differences between carbon steel fittings and stainless steel Metal Stamping Gasket

 

Carbon steels

Carbon steel is a base steel consisting of carbon and iron. It may contain unmeasured amounts or traces of other substances. Carbon steels are classified according to the amount of carbon mixed with iron. Medium to low carbon steels may contain less than 0.3% carbon, while high carbon steels may contain up to 2% carbon. Carbon is known for its ability to withstand high temperatures and strength/stress.

 

Stainless Steel

Stainless steels are made by adding chromium to the alloy. While basic carbon steels may contain only up to 2% carbon, stainless steels are focused on general corrosion and contain at least 10% chromium. The number of other elements that may be present in stainless steel compared to carbon steel is immeasurable. The most notable characteristic of stainless steel is that it is not susceptible to rusting.

 

stainless steel pipe joints

 

Considerations for Steel Pipes

If you are having a difficult time deciding between carbon steel and stainless steel options for your piping, there are several factors you can consider.

 

Substance

When you need to decide on a metal, the first deal breaker is to determine if it can perform in some corrosive medium, such as salt water or process chemicals. If so, you will need a metal that does not react easily. It may be best to go with stainless steel tubing, but double check the properties of the materials you will be using to check if they will react.

 

Cost

Fortunately, both carbon steel and stainless steel are very affordable compared to nickel alloys. Carbon steel pipe is often ranked as the cheapest steel for piping, but stainless steel is usually a close second. It allows you to choose the right material that best suits your project without major considerations of cost.

 

Appearance

If your piping is visible and appearance is on the list of considerations, it helps to know the finish of these steels. Stainless steel is usually glossy and can retain its luster if exposed to weather and other elements. Carbon steel, on the other hand, is darker in color and usually has a matte finish when painted. Unfortunately, it can also rust and deteriorate in appearance if exposed. Galvanizing is also an option.

 

Anti-corrosion Elbows

 

Temperature

Carbon steel pipe is known for its ability to withstand high temperatures, making it ideal for steam piping. However, if you are attempting to work in extreme climatic conditions (for example, transporting cryogenic liquids), a different grade of pipe must be used.

 

Conclusion

Stainless steel pipe is a popular choice for a variety of applications. Ventilation and steam pipes, municipal pipes and sewage pipes are often made of carbon steel. This is helpful if you are considering additional properties that may be required in chemicals or temperatures. The above details can help you determine the right steel for your application.

YAOFA offers you a custom service for pipe fittings. What we show on our website is only a part of our products, our service is more customization oriented. If your plant needs flanges, gates, tees, fittings, please contact us to get cooperation.