MoldMAX XL® Alloy

Alternative and trade names
MoldMAX XL®
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Description

Materion Performance Alloys’ MoldMAX XL Alloy is a high strength copper mold alloy with good thermal conductivity. The alloy contains no beryllium and is available in sections as large as 12” thick. The alloy’s hardness is comparable with AISI P-20 tool steel, but its thermal conductivity is two to three times higher. The alloy provides excellent toughness, wear resistance and surface finish. MoldMAX XL Alloy typically machines faster than tool steels, and with appropriate machine tools, metal removal rates several times higher can be obtained.

This material data has been provided by Materion Brush GmbH.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

8.9 g/cm³

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Mechanical

PropertyTemperatureValueComment

Charpy impact energy

23.0 °C

20 J

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Elastic modulus

23.0 °C

120 GPa

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Elongation

23.0 °C

6 %

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Fatigue strength

23.0 °C

240 MPa

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10⁷ cycles, R=-1

Hardness, Rockwell C

23.0 °C

30 [-]

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Tensile strength

23.0 °C

790 MPa

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Yield strength Rp0.2

23.0 °C

720 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

1.62E-5 1/K

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Melting point

925 °C

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Specific heat capacity

100.0 °C

390 J/(kg·K)

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Thermal conductivity

100.0 °C

70 W/(m·K)

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Chemical properties

PropertyValue

Copper

Balance

Nickel

8.5 - 9.5 %

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Tin

5.5 - 6.5 %

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Technological properties

Property
Application areas

MoldMAX XL Alloy is used as injection mold cores and cavities.