FILTERS
Filters
CitiesCountriesFinishedIndustriesStandardsSuppliers
ASTM A453 Grade 660 Class D round bar is a premium, high yield superalloy engineered for exceptional performance in high temperature service. This class is specially heat treated to achieve higher yield strength than other classes, ensuring reliability for critical fasteners, turbine components, and hardware in the demanding oil, gas, petrochemical, and aerospace industries.