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O1 Tool Steel | Forte Metals

O1 Tool Steel

O1 tool steel – For tools that stand the test of time.

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O1 Tool Steel

The original oil-hardening, "non-shrinking" tool steel, O1 Tool Steel, may be hardened to the Rockwell C 65 range at a low austenitizing temperature.

It has a lot of purposes and is commonly employed in applications where alloy steels are insufficient in terms of hardness, strength, or wear resistance.

Deep hardening qualities, fine grain structure, and remarkable toughness characterize O1 steel. It is incredibly durable, has excellent wear resistance, and maintains a sharp cutting edge. The heat treatment response of O1 cold work tool steels is also good, with just minor dimensional changes.

Quality O1 Tool Steel

Here at Forte Precision Metals, we offer quality tool steel stocks. We ensure you get the round bar stocks that fit your needs.

O1 Steel Commonly Used for;

  • cold forming dies
  • blanking dies
  • swaging dies
  • bolster dies
  • thread roll dies
  • punches
  • stamps
  • machine parts
  • blanking
  • cutter templates
  • cutting tools

O1 Tool Steel Properties and 01 steel properties

Physical Properties 


Melting point 

Modulus of Elasticity 


Specific Gravity 

Thermal expansion 

Elastic modulus 

Hardness, Brinell 

Hardness, Rockwell C

0.282 lb/in3


31 x 106 psi

85-90% of a 1%


6/ºC 20-260

28000 ksi



o1 Steel Bar Chemical Elements























O1 Steel Bar Stock Rod Bar Applications  

o1 steel bar is a kind of tool steel that has the best wear resistance. It is also characterized by high strength, toughness, and wearability. The 01 tool steel bar stock has good resistance to wear and abrasion. It also has good toughness, hardness, and strength. This makes it the perfect material for many tools used for heavy-duty jobs such as mining or construction.

Moreover, 01 tool steel bar stock is an excellent choice for producing tooling, dies, jigs, fixtures, and gages. It has good wear resistance and toughness, making it perfect for many applications. 01 Tool Steel has good machinability but requires additional cutting care to avoid excessive chip thinning or poor surface finish.

Tool steel bar types are an essential part of many industries. The most common 01 tool steel bar stock application is in manufacturing cutting tools, including drills, taps, milling cutters, reamers, and broaches. Also, 01 tool steel bar stock is low-alloy, high-carbon, and wear-resistant steel often used in manufacturing cutting tools.

It is high carbon steel with good wear, toughness, and heat resistance. Please note that the o1 steel bar has a very high carbon content, making it more challenging to work with than mild steel bars. This bar is typically heat-treated to increase strength and hardness before manufacturing.

Steel is a metal alloyed with other metals to give it different properties. The most common type of steel is carbon steel. O1 steel round bar has many properties that make it useful for various applications. It’s strong, durable, and can be very hard and brittle or quite ductile, depending on the content of alloying elements and the heat treatment.

Purchase the 01 Tool Steel 

Forte Precision Metals is here if you need an efficient steel round bar supplier and a centerless ground bar supplier who provides you with quality round bar stocks! We work firmly with our clients to ensure their precision ground bars are delivered to the correct specifications.

Get your O1 steel round bar stocks now! Call us or request a quote!

Contact info

Forte Precision Metals provide Precision Ground Bars & Centerless Ground services nationally and worldwide
Forte Percision Metals, Inc.
9234 Parklane Ave. Franklin Park, IL 60131
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