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Plastic Mold Steels

NAK55

NAK55 is a 40 HRC pre-Hardened, high performance, high precision, mold steel. Applications include plastic molds, rubber molds, jigs & fixtures, and press dies. 

Features:

  • Machines 30- to 40 percent faster than P20
  • Pre-hardened to 38-42 HRC
  • Uniform microstructure & hardness (40 HRC between surface & interior)
  • Never needs stress relieving
  • Highly weldable, HAZ gets softer not harder (re-age harden to bring back to 40 HRC)
  • EDM layer is easy to remove


All technical and engineering data and suggested procedures, specifications and applications contained in this publication are for general information only. Daido Steel, International Mold Steel and/or their distributors disclaim any and all express or implied warranties of merchantability, suitability for any particular purpose or use, or freedom from infringement of any patent, trademark or copyright. NAK80 is a registered trademark of International Mold Steel, Inc. and Daido Steel Limited.

NAK55

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  International Mold Steel, Inc. 
6796 Powerline Drive 
Florence, KY 41042 USA 
Toll Free: 800.625.6653
Tel: 859.342.6000
Fax: 859.342.6006
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