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CNC Machined Tool Steel

Lead Time
5 - 22 Days


± 0.005 in


Tool steel is an enduring and resilient alloy widely used in industries such as automotive and aerospace, where precision cutting machinery is required to withstand high stress. Its exceptional composition, consisting of tungsten, chromium, and vanadium, provides high resistance to wear and corrosion, enhancing its durability and strength. Engineers employ heat treatment processes to increase its hardness and toughness, improving its resiliency. Machining is used to craft high-quality tools and components from this remarkable material.

Machined Tool Steel Key Characteristics

Characteristics may vary depending on the grade/alloy.

  • Corrosion Resistant 
  • High Strength
  • Stress Resistant
  • Temperature Resistant
  • Wear Resistant

Machined Tool Steel Applications

  • Dies
  • Drills
  • End Mills
  • Gears
  • Molds
  • Pistons
  • Reamers
  • Taps

Industries Utilizing Machined Tool Steel

  • Aerospace & Defense
  • Automotive
  • Energy
  • Food & Beverage
  • Industrial
  • Medical, Dental, & Sciences
Why should you choose machined tool steel for your project?

Machined tool steel is a dependable option for projects that demand exceptional strength, durability, wear resistance, and the ability to endure high temperatures. Its robust design offers resistance to deformation and can withstand significant stress levels, which is why it is a preferred material for high-performance manufacturing, aerospace, and automotive applications. Moreover, tool steel’s machinability makes it an excellent choice for intricate and precise parts. In summary, incorporating tool steel into your project ensures that your end product will exhibit outstanding performance, maintain its shape, and withstand stress and wear.

Finishes for machined tool steel

Machined tool steel finishes can vary depending on the desired final appearance and function of the steel product. Some standard finishes include satin, polished, or textured surfaces. Satin and brushed finishes give the steel a smooth and consistent appearance, while polished finishes provide a shiny and reflective appearance. Textured finishes can be achieved through machining techniques such as milling or patterning. In addition to the visual appearance, finishes can also provide functional benefits such as increased resistance to corrosion or improved grip for handling. The finish selection depends on the tool steel’s application and the final product’s desired outcome.

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Steel Grades/Alloys

Steel 1018

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 63000-70000

Fatigue Strength (PSI): 26000-38000

Hardness (Brinell): 130-140

Milled Parts Machinability (AISI Rating): 78%

Steel 1045

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 90000-98000

Fatigue Strength (PSI): 33000-53000

Hardness (Brinell): 180-190

Milled Parts Machinability (AISI Rating): 57%

Steel 1215

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 78300

Fatigue Strength (PSI): N/A

Hardness (Brinell): 167

Milled Parts Machinability (AISI Rating): 136%

Steel 4140

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 100000-160000

Fatigue Strength (PSI): N/A

Hardness (Brinell): 200-310

Milled Parts Machinability (AISI Rating): 66%

Steel 11L17

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 86300

Fatigue Strength (PSI): N/A

Hardness (Brinell): 179

Milled Parts Machinability (AISI Rating): 9%

Steel 12L14

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 78300

Fatigue Strength (PSI): 28000-41000

Hardness (Brinell): 163

Milled Parts Machinability (AISI Rating): 198%