Nitronic 60 stainless steel provides a significantly lower cost way to fight wear and galling compared with cobalt-bearing and high nickel alloys. Its uniform corrosion resistance is better than Type 304 in nearly every situation and Nitronic 60 has chloride pitting resistance superior to Type 316. The room temperature yield strength is nearly twice that of Types 304 and 316. In addition, Nitronic 60 stainless steel provides excellent high-temperature oxidation resistance and low-temperature impact resistance.
Due to its grain structure, the galling resistance of Nitronic 60 is superior to that of any other stainless steel. It resists wear, tearing or freeze up of both the primary and contact materials over a wide range of service temperatures. The elevated temperature wear resistance of Nitronic 60 is excellent despite its relatively low hardness when compared with cobalt and nickel-base wear alloys. It also performs well in metal-to-metal wear in nominally inert atmospheres. The cavitation erosion resistance of Nitronic 60 is superior to the austenitic stainless steels as well as high strength duplex (ferritic-austenic) stainless steels.
Nitronic 60 stainless steel is available in bar, master alloy pigs, ingots and forging billets. Other forms available include sheet and strip, castings, extrusions, seamless tubing and plate.
Applications for Nitronic 60 include:
- Automotive valves – can withstand gas temperatures of up to 1500°F for a minimum of 50,000 miles.
- Fastener galling – capable of frequent assembly and disassembly, allowing more use of the fastener before the threads are torn up, also helps to eliminate corroded or frozen fasteners.
- Pins – Used in roller prosthetics & chains to ensure a better fit of parts (closer tolerance, non-lubricated) and longer lasting.
- Marine shafts – better corrosion than types 304 and 316, with double the yield strength.
- Pin and hanger expansion joints for bridges – better corrosion, galling-resistance, low temperature toughness, & high charpy values at sub-zero temps compared to the A36 and A588 carbon steels commonly used.
Information from Carlson Alloy, owner of the trademark for Nitronic 60.