What Is the Chemical Composition of Nitronic 50 Round Bar?
A Nitronic 50 round bar is widely used in industries that need strength, corrosion resistance, and toughness,all in one material. Many engineers search for its chemical composition, UNS number, and ASTM equivalents to understand how this alloy performs in real applications. This blog explains what Nitronic 50 is, its detailed chemical composition, and why it is used across marine, chemical, and industrial environments.
What Is Nitronic 50?
Nitronic 50 is a high-strength austenitic stainless steel known for its excellent corrosion resistance and toughness. It performs far better than standard stainless steels like 304 or 316, especially in saltwater, acidic, and high-pressure environments.
Its official Nitronic 50 UNS number is S20910, which is the grade used in engineering drawings, material certificates, and purchasing specifications.
The alloy is commonly used to produce round bars, rods, shafts, and marine components due to its strong mechanical properties.
Why Do Industries Use Nitronic 50 Round Bars?
1. High Strength
2. Excellent Corrosion Resistance
3. Non-magnetic
4. Good Weldability and Workability
Where Are Nitronic 50 Round Bars Commonly Used?
• Marine & Offshore
Used in shafts, pump parts, and boat fittings due to superior saltwater resistance.
• Chemical Processing
Ideal for valves, tanks, and pressure components exposed to aggressive chemicals.
• Pulp & Paper Industry
Performs well in acidic processing environments.
• Industrial Machinery
Used for high-strength fasteners, couplings, and mechanical components.
Nitronic 50 Equivalent ASTM Standards
To help buyers and engineers match specifications, Nitronic 50 is commonly supplied under these ASTM standards:
- ASTM A182 (for forged fittings and flanges)
- ASTM A276 (for stainless steel bars and shapes)
- ASTM A479 (for stainless steel bars for pressure vessels)
These equivalents make it easier to source Nitronic 50 materials for different applications.
Conclusion
FAQs
The Nitronic 50 UNS number is S20910, which identifies the grade in material standards and certifications. This UNS number ensures buyers receive the correct alloy with the expected chemical and mechanical properties.
Nitronic 50 is used for round bars, shafts, valves, pump parts, and high-strength components. Its corrosion resistance and toughness make it suitable for marine, chemical, and industrial applications where standard stainless steels may fail.
