Kolkata, India-based Neil Metals is a trusted manufacturer and supplier of **Nickel Alloy Round Bars** with a broad variety of high-performance nickel-based alloys like pure nickel (200/201), Monel, Inconel, Hastelloy, and others specialty grades. Through state-of-the-art production methods, rigorous quality checks, and adherence to international standards such as ASTM B160, the company is able to provide consistent dimensional accuracy, mechanical strength, and corrosion resistance. Supplying key industries like aerospace, petrochemical, marine, power generation, and nuclear, Neil Metals provides reliable and on-time supply of round bars for uses requiring durability and reliability in harsh environments ﹒([neonalloys.com][1])
**Nickel Alloy Round Bars** are usually made up of purity nickel (≥ 99%) commonly alloyed with metals such as chromium, molybdenum, copper, and iron to achieve certain performance specifications. For instance, Nickel 200 contains ≥ 99% Ni, ≤ 0.4% Fe, ≤ 0.35% Mn and Si, and ≤ 0.25% Cu with tensile strength of approximately 462 MPa, yield strength of 148 MPa, and elongation of \~45% ([ramanisteelhouse.com][2]). More specific alloys like Inconel 625 (≈58% Ni, 20–23% Cr, 8–10% Mo, Nb/Ta 3–4%) have tensile strengths > 800 MPa and good corrosion and oxidation resistance at high temperatures ([en.wikipedia.org][3]).
| Grade | Nickel Alloy – Pure Nickel |
|---|---|
| Specification | Nickel Bar Cold Finished : B160, SB160 400: B164, SB164, QQ-N-281 405: B164, SB164, QQ-N-281, ASTM B160 |
| Standard | ASTM, ASME, API, GB, AISI, DIN, EN, SUS, UNS |
| Round bar size | Diameter: 3-~800mm |
| Round Bar 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 |
| Round Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Condition | Hardened & tempered, annealed |
| Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Processing | Bar cutting to 650mm |
| Ni | Fe | C | Mn | Si | Cu | Mg | Ti | S |
|---|---|---|---|---|---|---|---|---|
| 99.0 Min | 0.4 Max | 0.02 Max | 0.35 Max | 0.2 Max | 0.25 Max | 0.15 Max | 0.1 Max | 0.01 Max |
| 99.0 Min | 0.4 Max | 0.15 Max | 0.35 Max | 0.1 Max | 0.25 Max | – | – | 0.01 Max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 8.9 G/Cm3 | 1446 °C (2635 °F) | Psi – 67000 , MPa – 462 | Psi – 21500 , MPa – 148 | 45 % |
| SIZE IN INCHES | LENGTH IN INCHES | WGHT./FT. |
|---|---|---|
| .500 | 120/216 | 0.749 |
| .750 | 120/216 | 1.686 |
| .875 | 120/216 | 2.295 |
| 1.250 | 120/216 | 4.683 |
| 1.375 | 120/216 | 5.666 |
| 1.500 | 120/316 | 6.743 |
| 1.750 | 120/216 | 9.179 |
| 2.000 | 120/216 | 11.988 |
| 2.250 | 120/216 | 15.173 |
| 2.500 | 120/216 | 18.732 |
| 2.750 | 120/216 | 22.665 |
| 2.875 | 120/216 | 24.773 |
| 3.000 | 120/216 | 26.974 |
| 3.250 | 120/216 | 31.657 |
| 3.500 | 120/216 | 36.714 |
**Nickel Alloy Round Bars** find extensive application in **chemical processing**, in which they take the shape of reactor parts, valves, and piping because of their acid, chloride, and high-temperature resistance. In **aerospace and defense**, they are applied to turbine parts, combustion chambers, and heat exchanger components because of their strength at high temperatures and resistance to oxidation. **Offshore and marine** uses—like propeller shafts, pump components, and fasteners—are enhanced by alloys such as Monel and high-nickel grades that are resistant to corrosion from seawater and stress cracking caused by sweating ([tsmnialloy.com][4]). Moreover, in **nuclear power** and **electric power generation**, nickel alloy round bars play a crucial role in steam-line piping, structural parts, and heat exchangers because they are stable in the long term for cyclic high-temperature conditions ([ramanisteelhouse.com][2]).
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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