Al Summan Metals distinguishes itself as a premier manufacturer and supplier of Invar 42 Bars and Rods, proudly headquartered in Dubai, UAE. They focus on delivering high-quality nickel-iron alloy solutions designed to meet precision engineering requirements. The company is committed to employing cutting-edge manufacturing methods, upholding rigorous quality control, and adhering to international standards to guarantee that their materials are both dependable and highly effective. Invar 42 Bars and Rods are especially renowned for their exceptionally low coefficient of thermal expansion, remarkable dimensional stability, and robust mechanical strength, making them ideal for uses that are sensitive to temperature variations.
With a firm emphasis on prompt deliveries, competitive pricing, and exceptional customer service, Al Summan Metals serves the aerospace, electronics, and precision engineering industries with their premium Invar 42 products.
Invar 42 Bars and Rods consist chiefly of nickel (roughly 42%) and iron, a combination that endows them with that impressive low coefficient of thermal expansion and outstanding dimensional stability. These bars deliver solid tensile strength, moderate hardness, and reliable mechanical behavior across a range of temperatures. Invar 42 maintains its structural integrity even during thermal cycling and exhibits minimal expansion when subjected to temperature swings. Its distinctive composition ensures accurate performance in applications requiring tight tolerances, stability, and resistance to thermal deformation, making it a preferred option for critical engineering and industrial work.
| Standards : | ASTM F30, ASME SF30 |
| 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 | Cu | Mo |
| Invar 42 | 0.1 max | 0.6 max | 0.35 max | 0.025 max | Balance | 35.0 – 37.0 | 0.5 max | 0.025 max | 0.5 max | 0.5 max | 0.5 max |
| Yield Strength (0.2%Offset) | Tensile Strength | Elongation | Hardness |
| Ksi – 36 , MPa – 248 | Ksi – 71 , MPa – 490 | 40 % | 40 |
| STANDARD | WERKSTOFF NR. | UNS |
| Invar 42 | 1.3917 | K94100 |
Yes, laser welding is applicable to Invar 42 bars. Its low thermal expansion characteristics make it well-suited for precision welding, although care must be taken to control heat input and distortion.
Yes, Invar 36 bar and rod are weldable, though extra caution is needed because of their low expansion characteristics. It's advisable to use suitable welding methods like TIG or MIG.
Yes, particular welding consumables for Invar 36 bar and rod comprise Invar 36 electrodes, TIG rods, and MIG wires. These materials guarantee correct fusion and reduce thermal expansion problems while welding.
Industries requiring materials with low thermal expansion and strong dimensional stability make extensive use of Invar 42 Bars and Rods. Their typical uses appear in aerospace and aviation for precision instruments, structural components, and optical assemblies. Within the electronics sector, Invar 42 serves semiconductor fixtures, circuit components, and precision measuring devices. This alloy also suits scientific instruments, optical benches, and temperature-sensitive mechanical parts perfectly. Because of its outstanding thermal stability and sufficient mechanical strength, Invar 42 Bars remain a dependable option for a range of demanding applications.






We supply products accompanied by both mill test certificates and third-party test certificates, guaranteeing the highest standards of quality and compliance.
Al Summan Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Dubai, UAE
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