Home Products High Performance Alloys MoldMAX Alloys MoldMAX Products MOLDMAX® & PLASTICS ALLOYS FOR INJECTION & BLOW MOLDING Our MoldMAX family of plastic tooling alloys are specifically designed to shorten cycle time and improve part quality for the plastic processing industry by providing thermal conductivity along with high strength. MoldMAX® alloys are used in injection mold components and core / cavity inserts, blow mold pinch-offs, neck rings and handles inserts, hot runner system injection nozzles and manifolds. Watch our most recent webinar, "Maximize Results with Copper Alloy Molds While Avoiding the Most Common Mistakes", presented by Bob Kusner, Pipeline Innovation Manager at Materion Performance Alloys and Composites and hosted by MoldMaking Technology Magazine. MOLDMAX® ALLOY CASE STUDIES – IMPROVING INJECTION & BLOW MOLDING Textron Automotive Case Study - MoldMAX alloys increased the efficiency of injection molding of instrument panels. RT Technologies Case Study - Increased cycle time by 20% when making cavity mold inserts with MoldMAX alloys. First Plastics Case Study - Eliminated warping and improved part quality for skate/bike ramp molds with MoldMAX alloys. COMPARE MOLDMAX & OTHER PLASTIC TOOLING ALLOYS Plastic Tooling Materials Rockwell Hardness (HRC) Thermal Conductivity (BTU/ft hr °F) Charpy V-Notch Impact Strength Yield Strength (ksi) Tensile Strength (ksi) Expansion Coefficient (10-6/in/in/°F) 420 Stainless 50 10 5-10 200 250 6.1 H-13 Tool Steel 45-50 15 8-14 200 250 7.1 MoldMAX HH® 40 75 4 145 170 9.7 MoldMAX XL® 30 40 15 105 115 9.3 MoldMAX LH® 30 90 12 110 140 9.7 MoldMAX V® 28 92 8 105 125 9.7 P-20 Tool Steel 30 17 25 120 140 7.1 PROtherm® 20 145 40 90 105 9.8 Alumold® * B88 95 30 75 80 12.9 QC-10® ** 92.2 66-76 13.7 Materion alloys are in bold. *registered trademark of Constellium **registered trademark of Arconic Inc. We offer a variety of MoldMAX alloys to meet the high production demands of the plastic processing industry, including: MoldMAX HH® Alloy MoldMAX HH alloy is a premium plastics alloy with hardness and strength comparable to standard tool steels, but its thermal conductivity is four to six times higher. Its high hardness provides durability in applications where other high conductivity copper alloys fail. This alloy is used for injection mold cores and cavities as well as pinch-offs for blow molds. MoldMAX HH alloy is available in rounds, square and rectangular bars, plate and forged rings. Download our MoldMAX HH alloy data sheet. MoldMAX LH® Alloy MoldMAX LH alloy is another premium copper beryllium plastic tooling and moldmaking alloy, It provides hardness and strength comparable to standard AISI P-20 tool steel, but with a thermal conductivity that is five times higher. This alloy is commonly used for injection mold cores and cavities and pinch-offs for blow molds. MoldMAX LH alloy is available in rounds, square and rectangular bars, plate and forged rings. Download our MoldMAX LH alloy data sheet. MoldMAX V® Alloy MoldMAX V alloy is a high conductivity, moderately high strength, copper nickel silicon chromium alloy. Commonly used for injection mold cores and cavities. MoldMAX V alloy is available in rounds and plate. Download our MoldMAX V alloy data sheet. MoldMAX XL® Alloy MoldMAX XL alloy is a high strength copper nickel tin mold alloy with good thermal conductivity. The alloy’s hardness is comparable with AISI P-20 tool steel, but its thermal conductivity is two to three times higher. MoldMAX XL alloy is available in rounds, square and rectangular bars and plate. Download our MoldMAX XL alloy data sheet. PROtherm® Alloy PROtherm alloy is a high conductivity copper beryllium alloy with good strength. This alloy has the highest conductivity of any alloy with tensile strength in excess of 100,000 psi. It is commonly used for injection mold cores, blow mold cavities and hot runners. PROtherm material is available in rounds, square and rectangular bars, plate and forged rings. Download our PROtherm alloy data sheet. WeldPak & WeldPak XL WeldPak copper beryllium is used as filler metal for TIG (GTAW) weld repair of copper beryllium, PROtherm alloy and the MoldMAX family of alloys. It is commonly used to repair cracks or to build up worn surfaces. WeldPak meets UNS C17200. WeldPak XL is used as filler metal for TIG (GTAW) weld repair of MoldMAX XL alloy. It is commonly used for repairing cracks or building up worn surfaces. WeldPak XL meets UNS C72900. GET TECHNICAL SUPPORT For help determining the plastic tooling and mold making alloy that best meets your needs, talk with our engineers. For additional design and processing information, download our MoldMAX® Alloys Technical Papers. Learn more about MoldMAX alloys in the latest plastic tooling brochure. FIND AN AUTHORIZED MOLDMAX ALLOY DISTRIBUTOR To ensure you are getting genuine MoldMAX alloy products, contact one of our authorized distributors in North America or our authorized international distributors.