347 Stainless Steel: It Can Take the Heat

347 stainless steel

Various industries and applications have different performance requirements for stainless steel alloys. While corrosion resistance is nearly always a given, other characteristics depend on the particular alloy. For applications that require heat resistance, 347 stainless steel is up to the challenge. 347 stainless steel is corrosion-resistant, weldable, and tough, but the characteristic that sets it apart from other alloys is its ability to withstand high temperatures.


Let’s take a closer look at the characteristics of 347 stainless steel and the industries that benefit from its heat resistance.


An Alloy That Can Take the Heat

All stainless steel alloys have a higher corrosion resistance than other types of steel, but their various compositions make them preferable for different applications. 347 contains not only chromium and nickel but also niobium, a ductile metal with a high melting point. Due to this chemical composition, 347 steel can withstand temperatures between 800º and 1500ºF.


Weldable, Formable, and Tough

Another reason 347 steel is a desirable alloy for multiple applications is that it is easy to weld and form into various shapes without weakening. 347 steel is typically supplied in the annealed condition, which removes internal stresses that can weaken the metal after it is formed. The inherent toughness of this alloy can make it more difficult to machine than other alloys, but using the proper tools and techniques removes this obstacle.


High Heat Applications

The high heat resistance of 347 stainless steel makes it suitable for several applications that involve high temperatures. Here are a few of those applications:

  • Heat exchangers: Many common applications, such as refrigeration, air conditioning, power stations, and chemical plants, require heat exchangers to function. These components get very hot and need to be made from alloys that can withstand high temperatures.
  • Aerospace components: Jet engines famously get very hot. Using an alloy like 347 protects against corrosion and oxidation.
  • Chemical processing equipment: Chemical processing involves corrosive materials and high temperatures, and therefore, it requires stainless steel alloys that can withstand both.
  • Automotive exhaust systems: The exhaust gases from gasoline engines are very hot as well as corrosive. Alloys like 347 are ideal for exhaust systems to extend the lifespan of the components.


Resist Heat and Corrosion | 347 Stainless Steel from Alliant Metals

At Alliant Metals, we supply stainless steel alloys and products for use in several industries. Whether your priority is heat resistance, corrosion resistance, or another concern, our team will help you select the best alloys and products.


Contact us at 800-543-1453 to learn more about our products and services.

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