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Invar 42 Sheets and Plates, including UNS K94100 and Nilo 42® variants, are high-precision nickel-iron alloys designed for dimensional stability and low thermal expansion. Sunrise Industry supplies these materials in a wide range of sizes and thicknesses, catering to diverse industrial applications. As a trusted manufacturer and supplier, the company ensures ready stock for timely delivery across India and worldwide.
UNS K94100 Sheets are made from an austenitic alloy containing approximately 41% nickel. This composition offers a thermal expansion rate nearly one-tenth that of carbon steel, making Invar 42 ideal for precision applications. These sheets and plates are known for their strength, malleability, toughness, and corrosion resistance. They maintain near-constant dimensions across normal temperature ranges and are well-suited for magnetic applications due to their low expansion coefficient from cryogenic temperatures onward.
Invar 42 Sheets and Plates can be easily cold-formed, hot-formed, or machined using standard methods similar to those used with austenitic stainless steel. Sunrise Industry offers these products in various forms including shim sheets, hot-rolled plates, cold-rolled plates, chequered plates, and polished plates, ensuring flexibility and adaptability for various industry requirements.
Sunrise Industry stocks Invar 42 Sheets and Plates in standard and extra-large sizes, ensuring reduced heat-affected zones during processes like welding. The alloy is widely used in high-precision industries such as electronics, aerospace, oil & gas, and power generation. It can withstand complex forming and welding operations while delivering reliable structural performance.
Advanced technology and strict quality control ensure the production of Invar 42 Plates with consistent quality. Surface finishes like pickling and buff polishing are applied as per application needs. From production to packaging, Sunrise Industry ensures high standards are met, with durable and safe packaging methods suitable for global shipping and critical industrial usage.
Hot-Rolled (HR) / Cold-Rolled (CR)
0.1mm to 100 mm Thk
10-2500mm
1000 mm x 2000 mm, 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2m, 2.44m, 3m, 36″ X 120″ or 48″ X 144″, Cut to size available
Invar 42 Sheet, Plates / UNS-K94100
| STANDARD | Material No | UNS | EN Designation | Alloy |
|---|---|---|---|---|
| Invar 42 | 1.3917 | K94100 | Ni 42 | 42 |
Invar 42 Chemical Composition (Basic Density 8.36)
| Grade | C% | Si% | Mn% | Ni% | Fe% |
|---|---|---|---|---|---|
| Invar 42 | ≤ 0.12 | 0.30 | 1.00 | 41.0–43.0 | Rest |
| Material | Hardness HB 30 ≤ HB |
0.2% Yield Strength Rp ≥ N/mm² |
Tensile Strength Rm N/mm² |
Elongation A5 ≥ % | Modulus of Elasticity kN/mm² |
|---|---|---|---|---|---|
| Invar 42 | 130 | 300 | ≥ 500 | 30 | 145 |
INVAR 42 Sheets are nickel-iron alloys designed for minimal thermal expansion, making them ideal for precision components. These sheets are widely used in electronics, telecommunications, aerospace, and tooling applications where dimensional stability across temperature changes is critical. Their excellent machinability and thermal control properties ensure reliable performance in sensitive environments.
Sunrise Industries offers high-quality INVAR 42 Plates in various sizes and specifications to meet specialized industry needs. Known for their low expansion rate and strength, these plates are suitable for applications like sealing, tooling fixtures, and hybrid microelectronics. With strict quality standards and timely delivery, we ensure dependable solutions for critical temperature-sensitive projects.
As your one-stop manufacturing partner, Sunrise Industries maintains a complete inventory of ready-to-sell raw materials alongside custom parts fabrication and full engineering services. From prototyping to production, we provide everything at a single location—serving all industrial sectors and transforming manufacturing value chains.
