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Nasir Nickel Alloys, headquartered in Manama, Bahrain, is a renowned manufacturer and supplier of Invar 36 Bars, recognized for their exceptional dimensional stability and low coefficient of thermal expansion. Nasir Nickel Alloys delivers Invar 36 bars manufactured to precise specifications, offering superior quality and consistent performance. The company caters to critical industries such as aerospace, scientific instrumentation, and cryogenics, where minimal thermal expansion and reliable mechanical properties are essential for precision engineering and high-performance applications.
Invar 36 Bars are composed primarily of approximately 36% nickel with the balance being iron, and trace amounts of carbon, manganese, phosphorus, sulfur, and silicon. These bars exhibit a very low coefficient of thermal expansion (about 1.2 x 10^-6 /°C up to 100°C), tensile strength up to 490 MPa, yield strength around 240 MPa, and elongation up to 42%. The alloy combines excellent mechanical strength, toughness, and corrosion resistance with a density near 8.05 g/cm³.
| 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 36 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 36 Bars are widely used in aerospace components, precision instruments, optical devices, cryogenic systems, and tooling where dimensional stability under temperature fluctuations is critical. Their minimal thermal expansion ensures high accuracy in measuring devices, thermostat rods, laser components, and liquefied gas storage systems, making them indispensable for industries demanding exceptional thermal and mechanical control.
