Rupal Metals is a reliable producer and exporter of Nitronic 40 Bar and Rod in Delhi, India, catering to various industry sectors with precision-engineered alloy materials. Well-known for consistent quality and reliable performance, Rupal Metals offers Nitronic 40 rods and bars that demonstrate excellent corrosion resistance, high strength, and excellent durability even in harsh conditions. With its emphasis on customer satisfaction, competitive prices, and compliance with global standards, Rupal Metals serves aerospace, marine, and chemical processing applications. Their state-of-the-art production facilities and strict quality control mean that every product delivered is of the highest standard in reliability and functionality.
Nitronic 40 Bar and Rod is an austenitic stainless steel alloy with high performance, having about 20–22% chromium, 6–10% nickel, 1.5–2.5% manganese, and minute concentrations of molybdenum and nitrogen. It has outstanding oxidation and corrosion resistance, particularly in marine and chemical environments. The following are its mechanical properties: tensile strength of approximately 655 MPa, yield strength of about 310 MPa, and good elongation and toughness up to cryogenic temperatures. Nitronic 40 also has strength at high temperatures and stress corrosion cracking resistance greater than that of common stainless steels.
| Grade | Nitronic alloy 40 Round Bar bars |
|---|---|
| Specification | DIN, JIS, ASTM, BS, ASME, AISI |
| Nitronic 40 Square bar size | 4 to 100mm |
| Nitronic Alloy 40 Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| 40 Nitronic Alloy Hex Bar size | 2-100mm A/F |
| Nitronic 40 Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Nitronic Alloy 40 Rectangles Size | 33 x 30mm to 295 x 1066mm |
| 40 Nitronic Alloy Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Nitronic 40 Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Nitronic Alloy 40 Section | 3.0 to 12.0mm thickness |
| 40 Nitronic Alloy Round bar size | Diameter: 3-~800mm |
| Nitronic 40 Billet Size | 1/2″ to 495mm Diameter |
| Nitronic Alloy 40 Round Bar Standard Dimensions | Diameter / Height: |
| Nitronic 40 Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Nitronic Alloy 40 Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| 40 Nitronic Alloy Technique | Nitronic 40 Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Nitronic 40 Condition | Hardened & tempered, annealed |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Form | Nitronic 40 Round, Rod, T-Bar, Nickel Alloy Channel Bar, Precision Ground Bar, Nickel Alloy Flat Bar, Nickel Alloy Square Bar, Nickel Alloy Blocks, Nickel Alloy Round Rod, Nickel Alloy Rings, Nickel Alloy Hollow, Nickel Alloy Triangle, Rectangle, Hex (A/F), Nickel Alloy Threaded, Half Round Bar, Profiles, Nickel Alloy Billet, Nickel Alloy Ingot, I/H Bar, Forging etc. |
| Processing | Bar cutting to 650mm |
| Our Nitronic 40 Round bar conforms to NACE MR0175/ISO 15156 | |
| Grade | C | Mn | S | Si | N | Ni | Cr |
| Nitronic Alloy 40 | 0.08 | 10.0 – 8.0 | 0.030 | 1.00 | 0.40 – 0.15 | 7.50 – 5.50 | 21.50 – 19.00 |
Ultimate Tensile, min. | Yield Strengtd (0.2% OS) min. | Elong. in 2 in., or 50mm, min., % | R/A | Hardness, max. | |
Min | 95 KSi | 48 KSi | 35 |
| |
Max | 241 Brinell | ||||
Min | 655 MPa | 330 MPa | |||
Max | 100 Rockwell B |
| STANDARD | UNS | DIN |
|---|---|---|
| Nitronic 40 Round Bars | S21900 | – |
Nitronic 40 bars are available in both rough and smooth finishes, depending on the manufacturing process and customer requirements. Smooth finishes are typical for applications needing better aesthetics or precision.
Nitronic 40 rods are available in sizes ranging from 3mm to 300mm diameter. Finishes include bright, polished, black, and rough-turned, catering to industrial and decorative applications.
Yes, Nitronic 40 bar can be welded using standard methods like TIG, MIG, and shielded metal arc welding. Preheating is not required, and post-weld annealing ensures optimal properties.
Nitronic 40 Bar and Rod finds extensive application in aerospace hardware, heat exchangers, chemical processing hardware, marine fittings, and pollution control equipment. Its capacity to function well in corrosive and high-temperature conditions makes it suitable for jet engine hardware, afterburner hardware, and superheater tubing. Also, its high mechanical strength and wear and galling resistance enable it to find application in fasteners, valves, and pumps. Such characteristics make Nitronic 40 a perfect option for applications involving strong, durable materials that can perform under harsh operating conditions.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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