Ojas Pipes and Tubes, a reputable manufacturer and supplier located in Kolkata, India, specializes in high-quality Nilo Alloy Bars and Rods tailored for specific industrial and electronic uses. These bars are meticulously crafted to provide outstanding thermal stability, controlled expansion characteristics, and remarkable strength even in tough conditions. Known for their reliability in high-performance settings, Ojas offers Nilo Alloy Bars and Rods that adhere to international quality standards. The company’s dedication to innovation, customer satisfaction, and prompt delivery has helped it build a strong reputation across various sectors, including aerospace, electronics, telecommunications, and instrumentation.
Nilo Alloy Bars and Rods are primarily made up of 42–52% Nickel, with the remainder being Iron, along with trace amounts of manganese, silicon, and carbon. These alloys are celebrated for their controlled thermal expansion, making them perfect for precision assemblies. The tensile strength typically falls between 70–85 ksi, depending on the specific grade. They also showcase good ductility, magnetic permeability, and excellent weldability. These characteristics allow the material to maintain its shape even under thermal cycling, ensuring dependable performance in critical electronic and aerospace applications.
| Grade | Nilo Alloy Round Bar |
|---|---|
| Nilo Alloy Square bar size | 4 to 100mm |
| Nilo Alloy Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Alloy Nilo Hex Bar size | 2-100mm A/F |
| Nilo Alloy Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Nilo Alloy Rectangles Size | 33 x 30mm to 295 x 1066mm |
| Alloy Nilo Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Nilo Alloy Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Nilo Alloy Section | 3.0 to 12.0mm thickness |
| Alloy Nilo Round bar size | Diameter: 3-~800mm |
| Nilo Alloy Billet Size | 1/2″ to 495mm Diameter |
| Nilo Alloy Round Bar Standard Dimensions | Diameter / Height: |
| Nilo Alloy Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Nilo Alloy Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Alloy Nilo Technique | Nilo Alloy Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Nilo Alloy 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 | Nilo Alloy Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square Bar, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Processing | Bar cutting to 650mm |
| Our Nilo Alloy Round bar conforms to NACE MR0175/ISO 15156 | |
| Grade | Mn | C | P | S | Si | Ni | Cr | Fe |
| Nilo Alloy 48 | 0.80 max | 0.05 max | 0.025 max | 0.025 max | 0.030 max | 48 | 0.250 max | Bal |
| Nilo Alloy K | 0.50 max | 0.04 max | 17.0 | 0.10 max | 0.20 | 29.0 | 0.20 max | 53.0 |
Properties | Metric | Imperial |
|---|---|---|
Modulus of elasticity | 130 GPa | 18900 ksi |
Tensile strength | 520MPa | 75.4 ksi |
Yield strength | 340 MPa | 49.3 ksi |
Nilo alloy bars and rods excel in high-temperature environments due to their excellent thermal stability, low thermal expansion, and resistance to thermal shock, making them ideal for high-precision applications.
Yes, Nilo Alloy rods can be customized in size and length to meet specific requirements. Manufacturers typically offer tailored solutions based on customer needs for various applications.
To maintain Nilo Alloy bars, clean regularly with a mild detergent, avoid harsh chemicals, store in a dry environment, and inspect for wear or corrosion. Lubricate if necessary.
Nilo Alloy Bars and Rods find extensive use in industries that require precision and thermal stability. In the electronics sector, they are vital for glass-to-metal seals, semiconductor packaging, and relay and switch housings. They also play a crucial role in aerospace systems, vacuum tube components, and magnetic devices where low expansion and high stability are essential. Moreover, their compatibility with ceramics and glass makes them ideal for X-ray equipment, microwave tubes, and thermocouple assemblies. Ojas Pipes and Tubes ensures these bars are customized to meet precise specifications, enabling top-notch performance in various applications.






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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