Nitronic 50 stainless steel - UNS S20910 - XM-19

Nitronic 50 stainless steel is an austenitic stainless steel renowned for its exceptional resistance to corrosion, wear, and galling.

The generic name for Nitronic 50 is XM-19 (sometimes written as XM19) and is sometimes referred to as UNS S20910 Nitronic 50. XM-19 is the designation of the generic alloy caption in ASTM A276 and ASTM A479, as well as UNS S20910 or DIN 1.3964.

NITRONIC 50 stainless steel is a cost-effective solution for areas requiring corrosion and strength resistance. It provides corrosion resistance that surpasses Types 316 and 316L and twice the yield strength of standard austenitic stainless steels. With superior mechanical properties at both high and low temperatures, NITRONIC 50 is an excellent choice that won't become magnetic even when cold worked.

Nitronic 50 is annealed between 1950 deg F and 2050 deg F. For critical applications that need to withstand high corrosive environments, the higher end of the range should be used. The annealing process helps achieve the alloy’s high corrosion resistant properties.

 

Nitronic 50 is then cold worked if transforming into high strength. The increased mechanical properties make it appropriate for oil & gas completion components, downhole drilling tools, marine applications, boat & pump shafting, and valve stems. Due to its ability to work harden, machining Nitronic 50 requires slower speeds and higher power.

Nitronic 50 stainless steel can be worked both in cold and hot conditions. Understanding the differences between cold and hot working processes is essential for achieving the desired mechanical properties and microstructure in your components. Cold drawn Nitronic 50 is favored in applications where precise dimensions and enhanced mechanical characteristics are required.