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<p>Designing a&#xa0;powder metallurgical high speed steel (PM-HSS) means defining the best compromise between toughness, hardness at room or high temperature, wear resistance, grinding ability, and other properties. The best compromise depends on the final application. In this context, Erasteel developed a&#xa0;solution intended for tools that suffer mainly from mixed adhesive/abrasive wear and/or chipping/cracking. This new grade named ASP<sup>®</sup>2008 is positioned between existing grades used for cold work tools or rolls.</p><p>Computational thermodynamical simulation tools were employed to tune alloying elements, V, Nb, Mo, and W to obtain an extremely fine and even carbide distribution containing many but very small and hard MC-carbides.</p><p>Mechanical and tribology tests of the new material were compared to some existing PM-HSS material and showed that the chemical composition and fine microstructure resulted in good toughness, a&#xa0;hardness up to 64&#xa0;HRC, a&#xa0;very good galling resistance, and good abrasive wear resistance. Application tests with blanking tools in the new grade showed that these properties and fine microstructure provided high performance at the end user.</p>

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ASP®2008, a New PM-HSS for High Performance Forming Tools with Improved Wear and Chipping Resistance

  • 期刊论文

  • 发表日期：

    2025年7月31日

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  • Stefan Sundin,
  • Elin Olsson,
  • Susanna Wedelfelt-Lindgren,
  • Nicolas Stern,
  • Richard Oriol,
  • Philippe Rocabois

摘要

Designing a powder metallurgical high speed steel (PM-HSS) means defining the best compromise between toughness, hardness at room or high temperature, wear resistance, grinding ability, and other properties. The best compromise depends on the final application. In this context, Erasteel developed a solution intended for tools that suffer mainly from mixed adhesive/abrasive wear and/or chipping/cracking. This new grade named ASP®2008 is positioned between existing grades used for cold work tools or rolls.

Computational thermodynamical simulation tools were employed to tune alloying elements, V, Nb, Mo, and W to obtain an extremely fine and even carbide distribution containing many but very small and hard MC-carbides.

Mechanical and tribology tests of the new material were compared to some existing PM-HSS material and showed that the chemical composition and fine microstructure resulted in good toughness, a hardness up to 64 HRC, a very good galling resistance, and good abrasive wear resistance. Application tests with blanking tools in the new grade showed that these properties and fine microstructure provided high performance at the end user.