Nitronic 50


Nitronic 50 is an austenitic premium stainless grade that provides better corrosion resistance than 300 or 400 series stainless. The combination of strength, anti-corrosive material, and non-magnetism makes this alloy a top choice for high-risk applications such as medical implantations. It also remains non-magnetic in cold environments, unlike other austenitic grades. Nitronic 50 has an equivalent ASTM: XM-19.


Nitronic 50 offers the best resistance/strength over all other materials near its price including our other austenitic stainless grade 316. In the high strength condition, Nitronic 50 can withstand high temperature and sub-zero environments allowing it to be used for critical applications. In non-critical applications, it has strength up to double that of 316 stainless steel.


Depending on the manufacturing process, Nitronic 50 has the capability to increase over double the yield tensile strength of 316 stainless steel. Premium Alloys offers Nitronic 50 in two conditions, condition Annealed and condition HS. Nitronic 50 has low magnetic permeability in all of its conditions.

Physical Properties:

Tensile Yield Enlongation Reduction
of Area
Annealed 100 55 35 55 -
HS 135 105 20 - -


  • Valves
  • Pumps and Boat Shafts
  • Heat Exchangers
  • Nuclear
  • Food Processing
  • Chemical
  • Pulp and Paper
  • Oil and Gas (Housing & Downhole Tools)


  • Great mechanical properties at elevated and sub-zero temperatures
  • Outstanding corrosion resistance and good strength in harsh environments
  • Low magnetic permeability
  • Nitronic 50 registers a 150 on the Brinell scale of hardness and an 80 on the Rockwell scale of hardness
  • Nearly double the yield strength of 316 stainless steel
  • Great sulfide resistance, avoiding stress fractures in A/C units
  • Yields a favorable surface finish