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O1 Tool Steel

Discovering the Versatility of O1 Tool Steel

O1 tool steel is a widely used oil-hardening alloy recognized for its fine
grain structure, deep hardening capabilities, and exceptional toughness. This
balance of properties makes it a trusted material for industries that demand
precision, durability, and long service life.

Key Properties of O1 Tool Steel

  • Durability: Delivers excellent wear resistance in high-use applications.
  • Sharp Cutting Edge: Maintains edge retention for cutting and shaping tools.
  • Toughness: Resists breakage and deformation under heavy stress.
  • Fine Grain Structure: Allows for superior finish and machinability.

Common Applications

Due to its unique combination of properties, O1 tool steel is frequently used
in:

  • Cutting tools and blades
  • Dies and punches
  • Gauges and measuring tools
  • Industrial knives and shear blades

At Mozaic Precision Metals, we supply precision-ground O1
tool steel bar stock to meet the requirements of today’s toolmaking and
manufacturing industries. With its proven versatility and performance, O1 tool
steel remains a top choice for precision machining applications.

Request a quote today to source high-quality O1 tool
steel for your next project.

Why O1 Tool Steel is a Popular Choice for Many Industries

O1 tool steel is a versatile, oil-hardening alloy steel known for its
durability, wear resistance, and hardness. Frequently used for shear knives,
slitting cutters, punches, bolster dies, and plastic mold dies, O1 tool steel
delivers the performance needed for demanding manufacturing and engineering
applications.

Key Benefits of O1 Tool Steel

  • Durability: High strength and long service life, even under
    repeated stress.
  • Wear Resistance: Withstands heavy friction applications
    such as cutting and forming tools.
  • Hardness: Achieves hardness ratings between HRC 40 and HRC
    63, making it ideal for industrial tooling.
  • Affordability: Offers a cost-effective balance of quality
    and performance.

Applications of O1 Tool Steel Bar Stock

With a composition of iron, carbon, chromium, manganese, nickel, and
molybdenum, O1 tool steel is designed for versatility. Its strength and
machinability make it a preferred choice in industries such as automotive,
construction, mining, and transportation.

  • Automotive: Used for chassis frames, body panels, dies, and
    forming tools where durability and corrosion resistance are required.
  • Manufacturing: Commonly used to produce punches, cutting
    tools, and mold dies.
  • Construction & Engineering: Applied in structural parts,
    rolling mill components, and heavy-duty industrial equipment.
  • Toolmaking: Ideal for precision cutting and forming tools,
    comparable to A2 tool steel in performance.

At Mozaic Precision Metals, we supply O1 tool steel bar stock
and precision-ground rod in various sizes to match your project requirements.
Known for its balance of hardness, wear resistance, and machinability, O1
remains one of the most popular steels across multiple industries.

Request a custom quote today and get high-quality O1
tool steel bar stock for your next application.

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