PROtherm® (formerly MoldMAX SC) material is a high conductivity, moderately high strength, copper nickel beryllium alloy by Materion Brush Performance Alloys.
Due to the unique combination of thermal conductivity and strength available in these copper mold alloys, you gain advantages like:
- Shorter cycle time
- Improved plastic part dimensional control
- Better parting line maintenance
- Excellent corrosion resistance
PROtherm common uses and applications
PROtherm material is commonly used for injection mold cores, blow mold cavities, and hot runners.
Chemical composition of PROtherm
- Beryllium – 0.2 to 0.6
- Nickel – 1.4 to 2.2
- Copper - balance
Physical properties of PRoTHERM
- Elastic modulus - 20.0x106 psi (138 GPa)
- Density - .319 lb/in3 (8.83 g/cm3)
- Poisson's Ratio - 0.3
- Thermal conductivity at 212°F (100°C) - 145 BTU/hr ft °F (250 W/m K)
- Coefficient of Thermal Expansion - 9.8 ppm/°F (17.6 ppm/°C)
- Specific Heat (Heat Capacity) at 70°F (20°C) - 0.080 BTU/lb °F (335 J/kg K)
- Specific Heat (Heat Capacity) at 212°F (100°C) - 0.091 BTU/lb °F (381 J/kg K)
- Melting Range - 1900 to 1980°F (1040 to 1080°C)
Nominal Mechanical properties of PROtherm
- 0.2% Offset Yield Strength - 90 ksi (620 MPa)
- Ultimate Tensile Strength - 105 ksi (720 MPa)
- Tensile Elongation in 2 inches (50.8 mm) - 15%
- Hardness - 20 HRC
- 107 Cycle Rotating Beam (R=-1 / Fully Reversed) Fatigue Strength - 35 ksi (240 MPa)
- Charpy V-Notch (CVN) impact STrength - 40 ft lbs (55 J)
PROTHERM Forms, Sizes and Tolerances
PROTHERM material is available in rounds, square and rectangular bars, plate and forged rings.
Applicable Specifications and Standards
PROTHERM is certified to hardness and conductivity only.
Contact Materion Brush Performance Alloys
For more information about PROtherm and MoldMAX Plastic Tooling Alloys, contact Materion Brush Performance Alloys today.