A unique precipitation hardening stainless steel demonstrating superior toughness and corrosion resistance for demanding applications.

Plastic Injection Molding

Plastic Extrusion

Blow Molding

Constructional Parts

Ultrachem’s excellent corrosion resistance reduces both mold maintenance costs and production costs.  Consistently high molding productivity is assured since cooling channels are not subjected to corrosion and loss of cooling efficiency.

Ultrachem is recommended for use in long life molds subjected to severe working conditions including corrosive materials and atmospheres, high stressed and indentation experienced in today’s fast cycling molding and extrusion operations.


Ultrachem is a chromium-nickel precipitation-hardening modified 15-5 PH stainless steel, supplied pre-hardened ~38HRC (350HB).

  • Exceptional corrosion resistance
  • Excellent toughness
  • Good machinability
  • Uniform hardness in all dimensions
  • Excellent compressive strength
  • Simple low temperature heat treatment with small dimensional change
  • Good weldability
Technical Specifications

Corrosion Resistance

Machinability Supplied



Wear Resistance

  • Plastic mold bases
  • Plastic mold inserts
  • Constructional parts
  • Plastic extrusion
  • Blow molds
  • Flat Plate
    • Saw Cutting
    • 6 Side Processing
    • Surface Grinding
    • Gun Drilling