Kanish Metals is a renowned manufacturer and supplier of Invar 42 Rods and Bars, located in Dubai, UAE, providing high-quality materials for applications with exceptional dimensional stability and thermal performance. Invar 42, alternatively known as Alloy 42 or UNS K94100, is a nickel-iron alloy that has been designed to have the same thermal expansion properties as other materials such as ceramics and glass. Kanish Metals produces every rod and bar to specific tolerances, in accordance with international standards. Known for reliability, customization, and timely delivery, Kanish Metals provides industries such as electronics, aerospace, telecommunications, and instrumentation with reliable Invar 42 solutions.
Invar 42 consists of about 42% nickel and 58% iron, specifically designed for low and controlled thermal expansion coefficient. This alloy has a thermal expansion coefficient well matched to such materials as borosilicate glass and ceramics. Representative mechanical properties are tensile strength of approximately 450 MPa, yield strength of 280 MPa, elongation of approximately 30%, and Brinell hardness of approximately 130 HB. Invar 42 offers satisfactory machinability, moderate strength, and magnetic characteristics, together with stability over a broad temperature range. It is particularly prized in applications demanding strict thermal expansion control.
| 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 can be used for Invar 42 bars. Its low thermal expansion properties make it suitable for precision welding, though attention is needed to manage heat input and distortion.
Yes, Invar 36 bar and rod can be welded, but it requires special care due to its low expansion properties. Proper welding techniques, such as TIG or MIG, are recommended.
Yes, specific welding consumables for Invar 36 bar and rod include Invar 36 electrodes, TIG rods, and MIG wires. These materials ensure proper fusion and minimize thermal expansion issues during welding.
Invar 42 Bars and Rods find extensive use in precision applications demanding reliable dimensional performance under changing thermal conditions. Some typical applications are components in semiconductor fabrication, glass-to-metal seals, hermetic packaging, integrated circuit lead frames, microwave tubes, and electronic devices. In aerospace and defense applications, it is applied in sensor housings, guidance systems, and structural supports. Invar 42 is also suitable for telecommunications gear and scientific equipment where alignment, precision, and reliability are essential. Its compatibility with glass and ceramics makes it essential in high-reliability applications requiring thermal matching and stability.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Kanish 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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