Aung Metals stands out as a leading manufacturer and supplier of Invar 36 Bars and Rods, proudly based in Naypyidaw, Myanmar. They specialize in providing top-notch nickel-iron alloy solutions tailored for precision engineering and various industrial applications. The company is committed to advanced manufacturing techniques, rigorous quality control, and strict adherence to international standards, ensuring that their materials deliver outstanding reliability and performance. Invar 36 Bars and Rods are particularly celebrated for their remarkably low coefficient of thermal expansion, impressive dimensional stability, and solid mechanical strength, making them perfect for applications where temperature sensitivity and precision are crucial. With a focus on timely delivery, competitive pricing, and dedicated customer support, Aung Metals caters to the aerospace, electronics, and scientific sectors with their premium Invar 36 offerings.
Invar 36 Bars and Rods are primarily made up of around 36% nickel, with the remainder being iron, which gives them that incredibly low coefficient of thermal expansion and remarkable dimensional stability. These bars boast good tensile strength, moderate hardness, and dependable mechanical performance across a wide range of temperatures. Invar 36 maintains its structural integrity even under thermal cycling, showing minimal expansion when faced with temperature fluctuations. Its unique composition guarantees precise performance, stability, and resistance to thermal deformation, making it an excellent choice for critical engineering applications that demand consistent tolerances and long-lasting reliability.
| Standards : | ASTM F1684, ASME SF1684 |
| Dimensions : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Wire : | Thickness starting from 0.05mm |
| Round bar size : | Diameter: 3-~800mm |
| Hex Bar size : | 2-100mm A/F |
| Flat bar size : | Thickness: 2 -100mm / Width: 10 to 500mm |
| Square bar size : | 4 to 100mm |
| Rectangular Bars Size : | 33 x 30mm to 295 x 1066mm |
| Hollow Bar : | 32mm OD x 16mm ID to 250mm OD x 200mm ID |
| Tolerance : | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Finish : | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Grade | C | Mn | Si | S | Fe | Ni | Cr | P | Mo | Co |
| Invar 36 | 0.10 max | 0.06 max | 0.35 max | 0.025 max | Rem | 35-38 | 0.50 max | 0.025 max | 0.50 max | 1.0 max |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Psi – 71,000 , MPa – 490 | Psi – 35,000 , MPa – 240 | 42 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Invar 36 | 1.3912 | K93600 |
Yes, Invar 36 bar and rod can be welded, but it requires special care due to its low expansion properties. Proper welding techniques, such as TIG or MIG, are recommended.
Yes, specific welding consumables for Invar 36 bar and rod include Invar 36 electrodes, TIG rods, and MIG wires. These materials ensure proper fusion and minimize thermal expansion issues during welding.
Invar 36 rod, primarily composed of iron and nickel, is not highly susceptible to galvanic corrosion. However, when exposed to more noble metals in corrosive environments, it can experience some galvanic effects.
Invar 36 Bars and Rods find their place in industries that require materials with minimal thermal expansion and high dimensional accuracy. They’re frequently used in aerospace for precision instruments, structural components, and optical assemblies. In the electronics field, Invar 36 is utilized for semiconductor fixtures, circuit components, and precision measuring devices. This alloy is also ideal for scientific instruments, optical benches, and temperature-sensitive mechanical parts. Its outstanding thermal stability, paired with sufficient mechanical strength, makes it a go-to choice for a variety of 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.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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