Machining/Grinding Tool Steel

CiDRA® Precision Services, LLC has years of experience manufacturing micron level tolerance products from Tool Steel. We leverage our in-depth dicing, drilling, milling, grinding, and polishing capability to manufacture the highest quality Tool Steel products.

Whether you need prototypes or volume production, CiDRA® Precision Services, LLC is here to help. Please contact us to discuss your applications.

Tool Steel

Tool Steel is a generic description for carbon and alloy steels developed specifically for tooling applications.  Tool Steels are known for their distinctive toughness, resistance to abrasion, their ability to hold a cutting edge, and/or their resistance to deformation at elevated temperatures. Tool Steels are produced in an annealed condition, and then heat-treated and quenched to increase the toughness and strength.  Tool steels come in the following three varieties:

  • Cold worked steels have high strength, hardenability, impact toughness, wear resistance, and are designed for use below 205°C.
  • Hot worked steels have many of the same properties as cold worked steels, but can be used at higher temperatures.
  • High speed steels have all of the properties listed above, but can be used up to 535°C.

Tool Steel Applications

  • Bearing sleeves
  • Cutting tools
  • Fuel injection valves
  • Injection molding
  • Needle blanks
  • Stamping tools

Tool Steel Properties

 

Units

Tool Steel
Melting Point C 2600
Strain Point C 760
Max Use Temperature C 205 - 535
Thermal Conductivity W/(m K) 19.9 - 48.2 
Specific Heat  J/(K kg) 502
Coefficient of Thermal Expansion 1/C (x10^-6) 6 - 15.1
Moh Hardness 6.5
Vickers Hardness kg/mm^2
Knoop Hardness kg/mm^2 605
Brinell Hardness kg/mm^2 210 - 620
Rockwell Hardness kg/mm^2 49 - 62
Density g/cm^3 7.8
Compressive Strength MPa 1000 - 2000
Tensile Strength MPa 640 - 2000
Elastic Limit MPa 310 - 365
Yield Strength MPa 380 - 440
Bending Strength MPa 275
Fracture Toughness (KIC) MPa m^1/2 50 - 80
Young's Modulus GPa 190 - 210
Shear Modulus GPa
Poisson's ratio 0.27 - 0.30
Resistivity ohm cm 7.5x10^-7
The information provided in this table is for room temperature only, and is a compilation of publicly available data.  This information is provided for comparison purposes only, and is not intended to be warrantable.   Further, CiDRA® Precision Services, LLC disclaims any and all liability from errors, inaccuracies, or omissions.

 

Please contact us if you would like to discuss your Tool Steel dicing, drilling, milling, grinding, polishing or any other machining applications.