India is becoming a hub for reliable and high-quality manufacturers and suppliers of Invar 36 Bars and Rods, known for their precision-engineered materials that adhere to international standards. Invar 36, a nickel-iron alloy with low expansion properties, is highly sought after in industries that require thermal stability and precise dimensions. Indian suppliers provide Invar 36 bars and rods that boast excellent mechanical properties and surface finishes, catering to sectors like aerospace, electronics, cryogenics, and instrumentation. With competitive pricing, advanced manufacturing capabilities, and readiness for global export, India has established itself as a trusted source for Invar 36 products used in demanding engineering and scientific fields.
Invar 36 Bars and Rods are composed of about 36% Nickel and 64% Iron, which gives this alloy its remarkable low coefficient of thermal expansion. This unique property allows it to maintain dimensional stability from cryogenic temperatures all the way up to around 200°C. The material showcases a tensile strength ranging from 485 to 620 MPa, a yield strength of about 275 MPa, and an elongation of up to 35%. Invar 36 is also known for its good toughness, weldability, and moderate machinability. These characteristics make it ideal for precision components that require minimal thermal expansion and dependable mechanical performance.
| Standards : | — |
| Size Range : | 0.015″ Thk up to 2″ Thk |
| Thickness : | Range from .008″ to .0125″ |
| Length : | 2m, 2.44m, 3m, or as required |
| Width : | 10-2500mm |
| Grade | C | Ni | Mo | I | Si | Mn |
| MU Metal | 0.02 max | 80.0-80.0 | 4.20 max | Balance | 0.35 max | 0.50 max |
| Grade | Density | Electrical Resistivity | Specific Heat | Tensile Strength | Specific Heat |
| MU Metal | 8.74 g/cm3 | 0.0000580 ohm-cm | 0.494 J/g-°C | 620 MPa (Ultimate) / 228 MPa (Yield) | 0.494 J/g-°C |
Invar 36 Bars and Rods produced in India find their place in high-precision applications across various industries. In aerospace, they are crucial for structural and instrumentation components that demand dimensional stability. In the electronics sector, Invar 36 plays a vital role in CRT components, semiconductors, and magnetic shielding. This alloy is extensively used in scientific instruments, optical devices, and telescope mounts where precise measurements are essential. Additionally, it is utilized in cryogenic engineering and composite tooling for aerospace and automotive applications. Thanks to its exceptional low thermal expansion, Invar 36 is a go-to choice for many demanding applications.






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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