Neil Metals, based in Kolkata, India, is a well-known manufacturer and supplier of Nilo Alloy Bars and Rods, providing precision-engineered solutions for essential applications in electronics, aerospace, and instrumentation. Nilo alloys, which are mainly iron-nickel alloys, are crafted for controlled thermal expansion and stability in environments with fluctuating temperatures. At Neil Metals, we offer a diverse selection of Nilo alloys, including Nilo 36 (Invar), Nilo 42, and other grades, all produced with high-purity materials and rigorous quality standards. Our bars and rods comply with international specifications, making them perfect for components that require dimensional stability, low expansion, and high performance under thermal stress.
Nilo Alloys are primarily composed of iron and nickel, featuring typical grades like Nilo 36 (36% Ni) and Nilo 42 (42% Ni). These materials provide controlled coefficients of thermal expansion and remarkable dimensional stability. For example, Nilo 36 boasts a tensile strength of around 485 MPa, a yield strength of 240 MPa, and an elongation of 35%. Nilo 42 offers similar strength but is specifically optimized for bonding with glass or ceramics. Both alloys demonstrate low thermal expansion, solid mechanical strength, and a Brinell hardness range of 130–170 HB, making them perfect for high-precision applications in environments with varying temperatures.
| 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 find extensive use in applications that demand minimal thermal expansion and outstanding dimensional stability. They are commonly utilized in industries such as electronics, aerospace, telecommunications, and instrumentation. Nilo 36 (Invar) is particularly suited for precision instruments, optical devices, clocks, and structural components in aerospace due to its near-zero thermal expansion. Nilo 42 is frequently used for glass-to-metal sealing in electronic packages, hermetic seals, and semiconductor components. These alloys are also applied in medical devices and cryogenic systems.
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
Copyright 2024 Neil Metals. All rights reserved
