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Nitronic 50 UNS S20910
Nitronic 50, also known as UNS S20910 or ASTM XM-19, is a Nitrogen-strengthened austenitic alloy that provides high strength as well as high corrosion resistance. Nitronic 50 has better corrosion resistance compared to 316 Stainless with twice the yield strength.
Physical properties can be enhanced by cold working only, as this alloy cannot be tempered. It should remain non-magnetic after cold working.
Applications: Nitronic 50 has an excellent combination of strength and corrosion resistance. Its uses include valves, valve shafts, pumps and pumping equipment, marine, offshore rigging, heat exchanger, pulp and paper, marine shafting.
|Silicon||1.00%||Chromium||20.50 - 23.50%|
Nitronic 50 Corrosion Resistance
The following table is for reference only, many factors can affect the corrosive resistance, a corrosion test for each application should be applied.
|Phosphoric acid||Moderate||Acetic Acid||Good|
|Sodium Hydroxide||Moderate||Sea Water||Moderate|
|Salt Spray||Excellent||Nitric Acid||Excellent|
Typical Room Temperature ASTM XM-19 Mechanical Properties
|0.2% Yield Strength||Ultimate Tensile Strength||% Elongation in 2” (50.8mm)||% Reduction of Area||Brinell Hardness||Charpy V-notch impact Strength|
Nitronic 50 Heat Treatment
- Heat to 1950/2050 F (1066/1121c) and cool rapidly. Brinell hardness approximately 150.
- Cannot be hardened by heat treatment. Cold working this alloy increases its strength and hardness, although best corrosion resistance is in the annealed condition.
- When machining Nitronic 50 its chip characteristics will be tough and stringy, when machining the use of chip curlers and breakers should be considered, along with sulfurized cutting fluids. Check out our machining options for your project.
- AMS 5764 ASTM A182 grade (XM-19), ASTM A276 grade, (XM-19), ASTM A479 grade (XM-19), ASME SA479 EN10204 DIN3.1B
- Shapes Manufactured:
- Flat Bars, Square Bars, Round Bars, Rings, Hollows, Discs, Blocks and special Shapes. Send us a drawing to see how we can save you material and Machining time!
The information in this data sheet is for information only and should not be used for engineering.
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