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Low thermal expansion cast iron and cast steel 'Hino GD Invar' with excellent castability and machinability.

Stable supply available from one unit to large lots! We have a track record of delivery in various industrial machinery such as semiconductor manufacturing equipment, machine tools, precision measuring instruments, and vacuum pumps.

The "Hino GD Invar" is a low thermal expansion material that achieves stable low thermal expansion, castability, and machinability through the optimization of alloy components and heat treatment. It has a proven track record in various industrial machines, including semiconductor manufacturing equipment, machine tools, precision measuring instruments, and vacuum pumps. 【Features】 ■ Linear Expansion Coefficient It has a low thermal expansion coefficient of α = 1.0 to 3.5 ppm/K (average from 20 to 50°C). ■ Castability By optimizing the alloy structure, it excels in suppressing casting defects compared to typical low thermal expansion cast iron. ⇒ It is suitable for parts with complex shapes or those prone to casting defects. ■ Machinability It offers superior machinability compared to typical low thermal expansion cast iron and difficult-to-machine materials like Invar. ⇒ It is suitable for precision machined products that require high accuracy. ■ Compatible with sand casting and lost-wax manufacturing processes ⇒ It enables stable supply regardless of size or lot with appropriate manufacturing processes. *Development of new materials and customization of materials according to customer requests are possible! Please feel free to contact us.