Home > Invar Bar
Olwan Nickel Alloys is a reliable manufacturer and supplier based in Amman, Jordan, offering premium-quality Invar Bars for a wide range of industrial applications. Known for their exceptional dimensional stability, these bars are produced with precision to meet strict international standards. Olwan Nickel Alloys focuses on delivering materials that ensure accuracy, consistency, and long-term performance, making them a trusted partner for industries requiring low thermal expansion alloys. With strong technical expertise and a commitment to quality, the company provides Invar Bars that support high-precision equipment, scientific instruments, and advanced engineering needs across regional and global markets.
Invar Bar is mainly composed of approximately 36% nickel and the balance iron, with minimal additions of carbon, manganese, and silicon. This unique composition gives it an extremely low coefficient of thermal expansion, making it ideal for applications needing precise dimensional control. Mechanically, Invar offers good ductility, moderate strength, and excellent toughness at both room and low temperatures. Its stability across varying thermal environments, along with reliable machinability and weldability, ensures consistent performance in high-accuracy engineering and scientific applications.
| 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 % |
At Olwan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Invar Bar in Amman, Jordan, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Jordan, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Invar Bars are widely used in industries where minimal thermal expansion is essential. They are commonly utilized in precision instruments, measuring devices, optical systems, and scientific equipment that require accurate dimensional stability. Aerospace and defense sectors rely on Invar for tooling, molds, and structural components exposed to fluctuating temperatures. It is also used in electronics, cryogenic systems, seismic sensors, and telecommunications equipment where high precision is crucial. In the manufacturing industry, Invar supports accurate machining and calibration processes. Its ability to maintain shape and dimensions makes it a preferred material for advanced engineering and research applications.
