ELCOAT 240 is a chromium diffusion coating developed for improved protection of superalloys against aggressive
ELCOAT 240 is a chromium diffusion coating developed for improved protection of superalloys against aggressive attack at medium-high temperatures (700-850°C metal temp.). The coating is produced in a pack cementation process at approximately 1100°C. It contains 50+% of chromium. This coating has a balanced chemical composition, designed to give improved protective qualities against Type II and Type I corrosion up to 850°C of nickel and cobalt base superalloys. It has two protective zones:
An outer layer alpha chromium with fine alumina inclusions
An inner diffusion zone with chromium enriched base material
Elbar B.V., 36, 5943 AD Lomm, PO Box 4339, ZG Arcen, , AN, 5944. Tel: +31 (0)77 4738666; Fax: +31 (0)77 4732785.