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COMSOL CD
Crucible Steel Cru-Wear® Tool Steel
Categories: Metal; Ferrous Metal; Carbon Steel; High Carbon Steel; Tool Steel; Air-Hardening Steel

Material Notes: CRU-WEAR is an air-hardening tool steel, heat treatable to HRC 60-65. Designed as an upgrade to D2, it offers better wear resistance, greater toughness and higher attainable hardness. Compared to the chemistry of D2, (D2 = 1.55% carbon, 11.5% chromium, 0.8% vanadium, and 0.9% molybdenum), CRU-WEAR has less carbon and less chromium, but more vanadium and tungsten. Both D2 and CRU-WEAR contain carbides for wear resistance, but CRU-WEAR has more vanadium carbides than D2. Vanadium carbides are harder than chromium carbides and are much more effective in providing wear resistance. Because CRU-WEAR contains less carbon than D2, its overall carbide volume is lower, making it tougher than D2. (Note: Although CRU-WEAR contains fewer total carbides, it has more of the type of carbides that are most effective for wear resistance.) CRU-WEAR’s higher attainable hardness results from the fact that it contains sufficient tungsten and molybdenum to cause a secondary hardening response, (up to HRC 65), which does not occur in D2. Finally, CRU-WEAR tempers at a higher range (900-1050°F) than D2 (400-600°F), so it is more compatible with a wide variety of surface treatments.

Information provided by Specialty Metals.

Vendors:
Available Properties
  • Density
  • Hardness, Brinell, Annealed
  • Hardness, Rockwell C
  • Modulus of Elasticity
  • Charpy Impact, Austenitizing Temperature- 1065°C
  • CTE, linear
  • Thermal Conductivity
  • Shrinkage
  • Carbon, C
  • Chromium, Cr
  • Iron, Fe, As Remainder
  • Molybdenum, Mo
  • Tungsten, W
  • Vanadium, V
  
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