GRTT Trattamenti Termici Srl is an Italian company specialized in vacuum and controlled atmosphere heat treatments on steels and metal alloys, serving the aerospace, defense, and industrial sectors. Founded in 1987 and based in Pontinia (LT), GRTT combines advanced technology, metallurgical expertise, and rigorous quality control to deliver high-performance and reliable results on every treated component.
The company is certified under EN ISO 9001, EN 9100, EN ISO 14001, and NADCAP for special processes, and is approved by major Aerospace and Defence prime contractors such as Safran, Bombardier, GE Aviation, Avio Aero, Leonardo Aircraft and Helicopters, Collins Aerospace, MBDA, IAI, Pilatus, Embraer, Rheinmetall, and Thales Alenia Space.
GRTT’s production capabilities include a wide range of vacuum and gas heat treatment*, such as quenching and tempering, nitriding, carburizing, annealing, and customized thermal cycles designed to enhance hardness, wear resistance, and dimensional stability.
Through continuous innovation, certified excellence, and customer-oriented service, GRTT stands as a trusted partner for industries requiring the highest metallurgical performance and quality standards.

GRTT provides heat and thermochemical treatments on steels and metal alloys, including quenching, tempering, carburizing, nitriding, and customized cycles. Serving aerospace, defense, automotive, tooling, and industrial sectors, it delivers components with high hardness, wear resistance, and dimensional stability.
Using advanced vacuum and controlled-atmosphere furnaces, oil and gas quenching systems, and precise process monitoring, GRTT is certified to EN ISO 9001, EN 9100, EN ISO 14001, and NADCAP. Continuous R&D with Italian universities ensures innovative, sustainable, and high-performance solutions