OharePrecision Logo

Tool Steel Round Stock

Strength Meets Versatility: Elevate Your Projects with Tool Steel Round Stock.

Overview of Tool Steel Round Stock

Tool steel round stock is a versatile and high-performance material used in various industries for its exceptional strength, durability, and resistance to wear and abrasion. This type of steel, available in different grades and sizes, is specifically designed to withstand the demanding conditions of tooling and machining applications, making it an ideal choice for professionals in manufacturing, engineering, and metalworking.

Applications of Tool Steel Round Stock

Tool steel round stock finds extensive use in a wide range of applications, thanks to its superior mechanical properties and performance characteristics. Some key applications:

  1. Tool and Die Making: It is useful in the production of punches, cutters, forging and stamping dies, and plastic injection molding molds. Its hardness, toughness, and wear resistance make it an excellent choice for shaping, cutting, and forming various materials.

  2. Machine Parts and Components: Many machine parts and components, such as gears, shafts, bearings, and cutting tools, are made from tool steel. These components require high strength, hardness, and dimensional stability to withstand heavy loads, high temperatures, and repetitive stress.

  3. Construction and Engineering: In the construction and engineering sectors, tool steel is useful for manufacturing fasteners, bolts, and pins. Its robustness and resistance to wear and impact ensure the longevity and reliability of these critical elements.

  4. Automotive and Aerospace Industries: Tool steel round stock finds extensive applications in the automotive and aerospace industries. It is used in the production of engine parts, transmission components, gears, bearings, and cutting tools. The ability of tool steel to withstand high temperatures and maintain its strength makes it suitable for demanding conditions in these sectors.

Machinability and Weldability of Tool Steel Round Stock

The machinability and weldability of tool steel are crucial considerations for its effective utilization. While the specific characteristics may vary depending on the grade of tool steel, understanding these factors is essential:

  1. Machinability: Tool steel round stock can be machined using conventional processes like turning, milling, drilling, and grinding. However, due to its high hardness, some grades may pose challenges in terms of tool wear and heat generation during machining. Proper selection of cutting tools, appropriate cutting speeds, and the use of coolant or lubricants are essential to optimize the machinability of this steel.

  2. Weldability: Welding tool steel requires careful consideration due to its alloy composition and hardening characteristics. Some grades of tool steel are more weldable than others, and preheating and post-weld heat treatments may be necessary to prevent cracking and maintain desired mechanical properties. Following recommended welding procedures and consulting with experts is crucial to ensure successful welds and minimize the risk of material failure.

Tool Steel Types

Tool steel round stock is utilized in the manufacturing of a wide range of tools and components for these industries. It possesses higher yield strength compared to other types of steel used for similar applications. Additionally, its strength and hardness make it an excellent material for various industries. Furthermore, tool steel round stock is known for its machinability and weldability.

To summarize, the advantages of tool steel round bar stock are:

  • High strength and hardness
  • Easy to machine and weld
  • Good corrosion resistance

Here are some notable grades available from reliable tool steel round bar suppliers:


A2 Tool Steel is a 5% chromium air-hardening steel widely used in tooling applications. It is known for its hardness and dimensional stability during heat treatment.


D2 tool steel contains a high amount of carbon and chromium, providing machinability and wear resistance. It exhibits excellent toughness at high hardness levels and offers exceptional abrasion resistance due to the presence of alloy carbide particles.


Also known as Molybdenum-type high-speed steel, M2 tool steel combines toughness, high wear resistance, and red hardness. It is commonly used for general-purpose applications and often available as cold finished steel bar.


O6 tool steel, also called graphitic tool steel, hardens in oil and exhibits resistance to sliding wear and galling. It is suitable for machining and non-seizing applications, and its physical properties can be provided upon specific request.


H13 tool steel is ductile and can be formed using standard processes. It is widely used in hot-work tooling due to its high toughness and fatigue resistance. Applications include hot working dies such as forging, extrusion, and die-casting dies, as well as stamping, slitting, cutting, and shearing.


W1 tool steel is a water-hardening alloy that achieves rapid hardening through quenching in water. This alloy includes a trace amount of chromium to enhance resistance and hardenability. Vanadium is also added to improve steel hardness and maintain grain size.


S7 tool steel is a versatile alloy available in both cold finished and hot finished forms. It offers excellent impact and shock resistance, as well as moderate temperature softening resistance. While it has slightly lower wear resistance compared to related alloys, it remains highly durable and does not distort during heat treatment.


O1 Tool Steel is a non-deformable, oil-hardening tool steel, often referred to as “non-shrinking” steel. It can be hardened to a Rockwell range of C65 at low temperatures. O1 is sought after for its strength, hardness, and wear resistance properties.

O1 Tool Steel

Looking for a Reliable Tool Steel Round Bar Supplier in O’Hare?

O’Hare Precision Metals is your trusted source for tool steel round bar in O’Hare. With our commitment to excellence, we provide high-quality materials and components that meet your needs. Our precision manufacturing ensures that all our tool steel round stock is straight, round, and accurate, giving you reliable and precise results.

With a team of skilled machinists and a focus on customer satisfaction, O’Hare Precision Metals delivers expertise and top-notch service. Whether you require tool steel round bars for tool and die making, machine parts, or other applications, we have you covered. Count on us as your go-to source for tool steel round stock in O’Hare.

Contact O’Hare Precision Metals today to request a quote and experience our dedication to quality and customer service. Trust us to provide you with the reliable tool steel round bar you need for your projects.