Home Products Alloys MoldMAX Alloys MoldMax Alloys MoldMAX HH MOLDMAX HH® MoldMAX HH® is a premium copper mold alloy. This alloy has a hardness and strength comparable to standard tool steels, but its thermal conductivity is four to six times higher. USES AND APPLICATIONS MoldMAX HH is commonly used for injection mold cores and cavities, as well as pinch-offs for blow molds. AVAILABLE FORMS, SIZES AND TOLERANCES MoldMAX HH is available in rounds, square and rectangular bars, plate and forged rings. For more information, download our MoldMAX HH data sheet. SPECIFICATIONS AND STANDARDS MoldMAX HH is certified to hardness and conductivity only. LEARN MORE ABOUT MOLDMAX For more information about MoldMAX HH Plastic Tooling Alloys, contact Materion Performance Alloys today.