Finkl Mar-X™ Datasheet

Wrought Stainless Steel

Supplied by A. Finkl & Sons Co.

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Product Description
Finkl Mar-X™ is a remarkably tough and long lasting mold steel with excellent corrosion resistance and high temperature physical properties.

Finkl Mar-X™ resists atmospheric as well as chemical corrosion due to plastic formulation or by-products formed during the plastic injection process. Mar-X™ has the general corrosion resistance of Type 304 stainless and, in many cases, eliminates the need for chrome plating required with other mold materials.

Mar-X™ is processed in Finkl's vacuum arc remelt (VAR) facility in order to achieve superior cleanliness and minimum segregation, assuring polishability to lens quality standards.

Finkl Mar-X™ is forged utilizing wide-die techniques, which assure consolidated centers and fine grain structure, resulting in improved properties throughout.

Finkl Mar-X™ is solution treated using our computer-controlled heat treat furnaces following thermal processing cycles developed to minimize the distortion of the mold during machining.

Finkl Mar-X™ is 100% sonic tested to the most rigid industry standards and is fully warranted.
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
Metals Thermal
Nominal Value
Mean Specific Heat (32 to 212°F)
Mean CTE (70 to 200°F)
Thermal Conductivity (200°F)
1Typical properties: these are not to be construed as specifications.
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