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Nasir Nickel Alloys, headquartered in Manama, Bahrain, is a distinguished manufacturer and supplier specializing in Invar Bars, renowned for their exceptional control over thermal expansion and high stability in precision applications. Nasir Nickel Alloys offers expertly manufactured Invar bars that meet rigorous industry standards and are distinguished by their low coefficient of thermal expansion, mechanical reliability, and corrosion resistance. Serving critical industries such as aerospace, electronics, and scientific instrumentation, Nasir Nickel Alloys provides reliable, high-quality Invar bars tailored for precision engineering needs.
Invar Bars are composed primarily of about 64% iron and 36% nickel, with small trace amounts of manganese, carbon, and silicon. They have a uniquely low coefficient of thermal expansion (approximately 1.2 x 10^-6 /°C up to 100°C), tensile strength typically around 480 MPa, yield strength near 275 MPa, and elongation approximately 40%. This combination delivers mechanical stability, excellent toughness, and corrosion resistance at a density of about 8.1 g/cm³, making them ideal for minimizing dimensional changes under temperature variations.
| 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 Nasir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Invar Bar in Manama, Bahrain, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Bahrain, 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 find wide applications in aerospace components, precision instruments, optical devices, cryogenics, and tooling where minimal thermal expansion is critical. Their ability to maintain dimensional stability under temperature fluctuations ensures accuracy in scientific instruments, clocks, and control systems, making them indispensable in engineering domains requiring stringent thermal management and mechanical precision.
