At 58-60 HRC, Bohler-Uddeholm’s Caldie is the toughest tool steel that the company carries, and that toughness is said to make it a suitable substitute for S7 applications such as smaller molds, core pins, cores and cavities.
Caldie is produced using electro-slag remelting (ESR), which accounts for its higher hardness, improved resistance to high-wear resins and better polishing properties. In addition, this material can withstand higher tempering temperatures and can be PVD-coated for increased tool life. It can be coated as high as 950°F without deterioration in properties or stability, the company says.
Editor's PickMilacron to Consolidate DME's North American Mold Base Operations
On Friday, Milacron informed the employees at the DME Youngwood, Pennsylvania, mold base manufacturing facility that all operations will be moving to DME’s facility in Greenville, Michigan, late this summer.