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DIN 1.2083

Tool steel for plastic molds

DIN 1.2083 is a high-alloy tool steel with a high chromium content (approx. 13%), known for its resistance to corrosion and wear. It is most often used in the production of plastic injection molds, especially for aggressive and abrasive plastics or in environments with higher humidity. It can be polished very well - it is also suitable for optical applications.


Alternative designation: X40Cr13
Type: Stainless tool steel

Heat treatment:

  • Preheat: 600–850 °C

  • Quenching: 1000–1050 °C (air or oil)

  • Tempering: 150–250 °C depending on the required hardness

  • Polishing and nitriding: possible after prior hardening

Forged, annealed blocks


410

610

810









410

X

X

X




































Features:

  • Good resistance to corrosion and moisture

  • High hardness after hardening (up to 52 HRC)

  • Good wear resistance

  • Very easy to polish – suitable for optical molds

  • Stable dimensional behavior during heat treatment

  • Poorer machinability in the hardened state

Use:

  • Molds for injection molding of abrasive and chemically aggressive plastics

  • Molds for plastic parts with high gloss requirements

  • Mold inserts for molds where corrosion is a risk

  • Molds and tools in environments with increased humidity

  • Parts requiring a combination of hardness, corrosion resistance and surface quality

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