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Introduction
What is D2 Tool Steel?
D2 tool steel, also known as 1.2379 or SKD11, is a high-carbon, high-chromium air-hardening tool steel. It’s renowned for its exceptional wear resistance, toughness, and ability to hold a fine edge, making it a popular choice for a wide range of applications, particularly in the manufacturing of cutting tools and dies.
Why Choose D2 Tool Steel Bar Stock?
If you’re looking for a material that can withstand demanding conditions and produce high-quality parts, D2 tool steel bar stock is an excellent option. Here’s why:
- Exceptional Hardness: D2 tool steel can achieve a Rockwell hardness of 57-62 HRC, providing superior wear resistance and edge retention.
- Excellent Toughness: Despite its hardness, D2 tool steel offers excellent toughness, making it less prone to chipping or breaking.
- Good Corrosion Resistance: The high chromium content in D2 steel provides good corrosion resistance, making it suitable for use in various environments.
- Versatility: D2 tool steel can be used for a wide range of applications, including cutting tools, punches, dies, and more.
Understanding the Properties of D2 Tool Steel
To fully appreciate the benefits of D2 tool steel, it’s essential to understand its key properties:
- Chemical Composition: The specific chemical composition of D2 tool steel varies slightly depending on the manufacturer, but it typically contains high levels of carbon and chromium, along with smaller amounts of molybdenum and vanadium.
- Heat Treatment: The heat treatment process plays a crucial role in determining the final properties of D2 tool steel. Proper heat treatment is necessary to achieve the desired hardness and toughness.
- Machinability: D2 tool steel can be challenging to machine due to its hardness, but it is still machinable with the right tools and techniques.
Applications of D2 Tool Steel Bar Stock
D2 tool steel bar stock is used in a wide range of applications, including:
- Cutting Tools: Knives, blades, punches, and shear blades
- Dies: Stamping dies, forming dies, and extrusion dies
- Molds: Plastic injection molds and metal casting molds
- Wear Parts: Bearing races, bushings, and wear plates
How to Choose the Right D2 Tool Steel Bar Stock
When purchasing D2 tool steel bar stock, consider the following factors:
- Size and Shape: D2 tool steel is available in a variety of sizes and shapes, including round bars, flat bars, and squares.
- Tolerance: The tolerance of the bar stock will depend on the specific application.
- Quantity: The quantity of bar stock you need will affect the price.
- Manufacturer: Choose a reputable manufacturer to ensure the quality of the material.
D2 Tool Steel vs. Other Steel Grades
To better understand the unique properties of D2 tool steel, let’s compare it to some other popular steel grades:
| Feature | D2 Tool Steel | A2 Tool Steel | O1 Tool Steel |
|---|---|---|---|
| Carbon Content | High | Medium | Medium |
| Chromium Content | High | Medium | Low |
| Hardness | Very high | High | Medium |
| Toughness | High | Medium | Medium |
| Wear Resistance | Excellent | Good | Good |
| Corrosion Resistance | Good | Fair | Fair |
Conclusion
D2 tool steel bar stock is a versatile and high-performance material that is well-suited for a wide range of applications. Its exceptional hardness, toughness, and wear resistance make it a popular choice for manufacturers seeking to produce high-quality components. By understanding the properties and applications of D2 tool steel, you can make informed decisions when selecting this material for your project.
FAQs
Q: What is the difference between D2 and A2 tool steel?
A: D2 tool steel has a higher carbon and chromium content than A2 tool steel, resulting in greater hardness and wear resistance.
Q: Can D2 tool steel be welded?
A: Yes, D2 tool steel can be welded, but special welding procedures and filler metals are required.
Q: How do I heat treat D2 tool steel?
A: The heat treatment process for D2 tool steel can be complex and should be performed by a qualified heat treater.
Q: Where can I buy D2 tool steel bar stock?
A: D2 tool steel bar stock can be purchased from a variety of suppliers, including online retailers, metal service centers, and specialty steel distributors.