YXR Series

Matrix Type High-Speed Steel


Hitachi Metals has developed a new matrix type high speed steel with high toughness and strength. The YXR Series consists of three different grades:

  • YXR3: Tool forging with superior toughness
  • YXR33: Tool forging with greatest toughness
  • YXR7: Tool forging with both superior strength and toughness

Chemical Composition

C Cr W Mo V Co
YXR3 0.6 4.3 2.9 1.8
YXR33 0.5 4.2 1.6 2.0 1.2 1.0 or less
YXR7 0.8 4.7 1.3 5.5 1.3

Further Literature:

YSS High Speed Tool Steel