What is the differences between the Nitronic 50 and Nitronic 60?
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What is the differences between the Nitronic 50 and Nitronic 60?
Nitronic 50 and Nitronic 60 are nitrogen-strengthened austenitic stainless steels. Nitronic 50 exhibits significantly better corrosion resistance than 316 and 317 series stainless steels. It performs exceptionally well in harsh marine, oil, petrochemical, and fertilizer environments. Nitronic 60 stainless steel does not exhibit scratching or seizing at either room or high temperatures, extending component lifespan. While its corrosion resistance is slightly less than Nitronic 50, it is still superior to standard 304 stainless steel.
What is Nitronic 50 stainless steel bar?
Nitronic 50 stainless steel bar is a high-nitrogen austenitic stainless steel, designated as UNS S20910 (XM-19). It features high strength, excellent corrosion resistance, and good low-temperature performance, and is widely used in critical load-bearing components in marine, chemical, and oil industries.
Nitronic 50 also offers low magnetic permeability, remaining nearly non-magnetic even after cold working, making it suitable for applications in magnetically sensitive environments.
Nitronic 50 bars are available in various shapes such as round bars, square bars, and hexagonal bars. The typical diameter range is 6–300 mm, with lengths up to 6 meters. Surface finishes include black, pickled, or bright polished conditions. The delivery condition is generally solution annealed (1020–1120℃ water quenched) to ensure uniform microstructure and stable mechanical properties.
What is Nitronic 60 stainless steel bar?
Nitronic 60 stainless steel bar is a high-manganese, high-silicon, nitrogen-strengthened austenitic stainless steel, designated as UNS S21800. It offers exceptional anti-galling (anti-scratch) and wear resistance, and its yield strength is approximately twice that of 304 stainless steel.
In stainless steel-to-stainless steel sliding contact conditions, its anti-galling performance is 5–10 times better than 304/316L, making it ideal for frequently assembled and disassembled components such as fasteners, valve stems, and bushings.
Nitronic 60 bars are available in a wide range of specifications, with common diameters from 5–500 mm. Lengths can be customized. It can be supplied in hot-rolled, cold-drawn, or solution-annealed conditions. Surface finishes include black, pickled, or bright polished. It is widely used in automotive, environmental protection equipment, energy systems, and high-end manufacturing industries.
Nitronic 50 vs. Nitronic 60:Chemical Composition (Typical %)
| Nitronic 50 (UNS S20910) | Nitronic 60 (UNS S21800) | |
| High Strength + Superior Corrosion | Anti-Galling + Wear Resistance | |
| 20.5 – 23.5% | 16.0 – 18.0% | |
| 11.5 – 13.5% | 8.0 – 9.0% | |
| 4.0 – 6.0% | 7.0 – 9.0% | |
| 1.00% max | 3.5 – 4.5% (Key for wear) | |
| 1.5 – 3.0% | --- | |
| 0.20 – 0.40% | 0.10 – 0.18% |
Nitronic 50 vs. Nitronic 60:Mechanical Properties (Annealed Bar)
| Yield Strength (0.2% Offset) | >= 55 ksi (380 MPa) | >= 50 ksi (345 MPa) |
| >= 100 ksi (690 MPa) | >= 95 ksi (655 MPa) | |
| Elongation in 2" | 35% | 35% |
| 95 HRB - 25 HRC | 95 HRB |
Nitronic 50 vs Nitronic 60: Corrosion Resistance
Nitronic 50 contains 1.5% - 3.0% molybdenum (Mo) and a high chromium (Cr) content of approximately 22%. This gives it excellent resistance to pitting and crevice corrosion in seawater, acidic environments, and chloride environments. Nitronic 60's corrosion resistance is generally between that of 304 and 316 stainless steel. It does not contain molybdenum, therefore its performance in harsh chemical or marine corrosive environments is inferior to that of N50.
Nitronic 50 vs Nitronic 60: High Temperature Resistance
Nitronic 60 maintains its strength and oxidation resistance at temperatures up to 1000℃F (540℃). Nitronic 50 is primarily designed for temperatures up to 600℃F (315℃).
Nitronic 50 vs Nitronic 60:Magnetic Properties
Both are fully austenitic and non-magnetic in the annealed state.
Nitronic 50 exhibits extremely stable permeability, maintaining very low permeability even after rigorous cold working (even at -269℃). Nitronic 60 is also essentially non-magnetic after cold working, making it suitable for environments sensitive to electronic interference.
What is the difference between Nitronic 60 and Inconel 600?
Nitronic 60 is a high-strength, wear-resistant austenitic stainless steel that relies primarily on manganese and silicon to prevent scratches; while Inconel 600 is a nickel-based superalloy with nickel and chromium as its main components, focusing on chemical stability in extreme high-temperature and corrosive environments. Although both can operate at temperatures approaching 1000℃, Inconel 600 has an overwhelming advantage in resisting highly corrosive media. Nitronic 60 is more suitable for general wear conditions while also providing oxidation resistance.
Supplier of Nitronic 50 and Nitronic 60 stainless steel bars
GNEE offers nitronic 50 and nitronic 60 stainless steel bars, strictly adhering to ASTM A276, ASTM A479, AMS 5764 (N50), AMS 5848 (N60), and ASME standards.
Round Bars: Diameters from 3mm to over 400mm.
Other Shapes: Hexagonal bars, square bars, flat bars, and custom-forged round bars according to drawings.
Delivery Condition: Available in annealed and work-hardened high-strength/cold-worked conditions.
Surface Finishes: Black skin, peeled, polished, and centerless grinding (tolerances up to h8/h9).
Cutting to Length: High-precision sawing equipment ensures flat end faces and compliant lengths.
Original material certificate provided (MTC EN10204 3.1).
The laboratory supports PMI composition analysis, mechanical property testing (tensile/hardness), intergranular corrosion testing, ultrasonic testing (UT), etc.
