Materials
Nickel Alloys: Nitronic (50, 60)
Nitronic 50 (UNS S20910, XM-19)
Material: High-strength, nitrogen-strengthened austenitic stainless steel.
Mechanical Properties:
Twice the yield strength of 316/316L stainless steel.
High toughness and ductility, even at cryogenic temperatures.
Retains strength well at elevated temperatures.
Corrosion Resistance:
Superior to 316 and 317 stainless steels in most environments.
Excellent resistance to chloride pitting and crevice corrosion.
Good resistance to sulfide stress cracking in sour oil & gas environments.
Manufacturing Considerations:
Non-magnetic in the annealed condition.
Weldable using conventional stainless procedures.
Machinability is lower than standard 300-series stainless due to its high strength.
Applications in Fasteners & Components:
Marine fasteners and hardware exposed to seawater.
Pump shafts, valves, and high-stress bolting in corrosive service.
Offshore and chemical processing components requiring both strength and corrosion resistance.
Nitronic 60 (UNS S21800)
Material: Austenitic stainless steel engineered for galling and wear resistance.
Mechanical Properties:
Yield strength about double that of 304/316 stainless.
Excellent resistance to wear, galling, and fretting – even without lubrication.
Maintains good strength at elevated temperatures (up to ~1800°F / 982°C).
Corrosion Resistance:
Comparable to 316 stainless steel in many corrosive environments.
Particularly useful where both corrosion and metal-to-metal wear are concerns.
Manufacturing Considerations:
Non-magnetic in the annealed condition.
Readily weldable and fabricable.
Machining is more difficult than 300-series stainless, but feasible with proper tooling.
Applications in Fasteners & Components:
Bolts, nuts, bushings, and pins where galling prevention is critical.
Valve stems, wear pads, and bearings.
Mechanical assemblies where stainless-on-stainless contact cannot be lubricated.
Key Takeaway for Fasteners
Nitronic 50: Chosen for strength + corrosion resistance, especially in marine and chemical service.
Nitronic 60: Chosen for anti-galling + wear resistance, making it ideal for moving or load-bearing fasteners in stainless-to-stainless contact.
Materials
BRASS
BRONZE
COPPER
PH STAINLESS STEEL
DOING WHATEVER IT TAKES
Putting Manufacturing Exellence Into Practice
The manufacturing processes, testing capabilities, and quality systems featured throughout WN Global support the production of critical components and engineered fastening solutions across demanding industries. Connect with our team to learn how our manufacturing capabilities can support your project requirements.
