Finkl Mold Die® Datasheet

Wrought Tool Steel

Supplied by A. Finkl & Sons Co.

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Product Description
Finkl Mold Die Lens Quality is recommended for plastics and other materials requiring molds exhibiting excellent polishability.

Mold Die Lens Quality has proven itself in especially demanding applications such as lenses and high quality optical molds and dies.

Finkl Mold Die Lens Quality is ALWAYS forged with a minimum of 5 to 1 reduction. It is forged utilizing wide die techniques which assure consolidated centers and fine grain structure, resulting in improved properties through-out. It is sold in the pre-hardened condition, with a hardness of approximately 300 Brinell (32 HRc).

Finkl Mold Die Lens Quality is produced by the patented Double Vacuum Process, which consists of Vacuum Arc Degassing followed by Vacuum Arc Remelting. This is the ONLY process that can produce steels with minimum sulfur as well as minimum hydrogen, nitrogen, and oxygen content. This process provides steel with the optimum combination of cleanliness, refined structure, strength, and isotropic properties—the ideal material for high-performance dies and molds.

Finkl Mold Die Lens Quality is 100% ultrasonically tested according to the most rigorous standards. It is fully warranted for molds and dies.
Material Status 
  • Commercial: Active
  • Asia Pacific
  • Europe
  • Latin America
  • North America
Available Documents
Technical Datasheet (English)
Metals General
Nominal Value
Metal Type
Metals Type Analysis
Nominal Value
Type Analysis
Metals Physical
Nominal Value
Density (68°F)
Metals Mechanical
Nominal Value
Hardness (HB-Scale)
Tensile Modulus (68°F)
Metals Thermal
Nominal Value
Mean Specific Heat (68°F)
Mean CTE (68°F)
Thermal Conductivity (68°F)
1Typical properties: these are not to be construed as specifications.
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