# SeAH CSS develops superalloy technology for aerospace and defense

SeAH CSS, a subsidiary of SeAH Besteel Holdings, has developed superalloy technology capable of withstanding 1,650°C, for use in jet engines and gas turbines. The development was completed in January 2025 with Doosan Enerbility and Hanwha Aerospace.

- Type: Product launch
- Announced: 2025-01-01
- Where: South Korea
- Status: completed
- Products: superalloys, special metal materials
- Sectors: [Aerospace Components](https://endata.com/sectors/aerospace-components.md), [Steel and Metal Products](https://endata.com/sectors/steel-metal-products.md)

## Companies

- [SeAH Besteel](https://endata.com/companies/42484.md)
- [SeAH CSS](https://endata.com/companies/77456.md)
- [Hanwha Aerospace](https://endata.com/companies/5761.md) (partner)
- [Doosan Enerbility](https://endata.com/companies/9315.md) (partner)

## Sources

- [seah.co.kr](https://www.seah.co.kr/eng/pr/blog/seahbesteelholdings-material-sovereignty), 2025-09-01: "SeAH CSS has recently secured the technology to produce superalloys that retain their shape and metallurgical properties even at temperatures of 1,650°C."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.