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Fajar Metals stands out as a trusted manufacturer and supplier of Invar 36 Bars, proudly based in Jakarta, Indonesia. This unique nickel-iron alloy, which contains 36% nickel, is celebrated for its incredibly low coefficient of thermal expansion (CTE) and remarkable dimensional stability across a broad temperature spectrum. These characteristics make it perfect for applications where precision and thermal management are paramount. Fajar Metals provides Invar 36 Bars in a variety of sizes and conditions, all crafted to comply with ASTM F1684 and other global standards. Our Invar bars are relied upon in industries like aerospace, cryogenics, tooling, electronics, and scientific instrumentation, where high stability under thermal stress is essential.
Invar 36 Bars are made up of roughly 36% nickel and 64% iron, which gives the alloy its distinctive low CTE (~1.2 x 10⁻⁶/°C between 20–100°C). It boasts a tensile strength ranging from 450 to 620 MPa, along with excellent ductility and good formability. Invar 36 maintains its stability in both cryogenic and moderate heat conditions, making it an excellent choice for precision components that face temperature fluctuations. Fajar Metals offers Invar 36 Bars in annealed, cold-worked, or machined forms, all with tight tolerances and smooth finishes to ensure top-notch performance in critical applications that require long-lasting structural integrity and thermal stability.
| 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 Fajar Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Invar 36 Bar in Jakarta, Indonesia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Indonesia, 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.
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Invar 36 Bars are perfect for applications that demand minimal thermal expansion and high dimensional accuracy. In the aerospace sector, they find their place in structural components, satellite systems, and instrumentation where precision is key. Cryogenic engineering utilizes Invar 36 for containers, supports, and transfer lines due to its low thermal contraction. In the tooling and die industry, it’s employed for high-precision molds and gauges. Additionally, the electronics and telecommunications sectors make use of Invar 36 Bars in shadow masks, lead frames, and thermostatic components.
