Choosing the right steel for your project can be challenging. S7 Tool Steel and 8620 are two popular options in the industry. They both have unique properties that make them suitable for specific applications. This blog post will discuss the essential differences between S7 and 8620 and which is better for your project.
What is S7 Tool Steel?
S7 Tool Steel is known for its excellent shock resistance and wear resistance. It is a high-carbon, high-chromium, and high-vanadium alloy steel ideal for high-impact resistance applications. Its toughness and durability make it a popular choice for tools, dies, and punches subjected to high-stress conditions. S7 Tool Steel can also be hardened above 60 HRC, which makes it great for cutting tools and cold work applications.
What is 8620 Steel?
On the other hand, 8620 steel is a low-carbon nickel-chromium-molybdenum alloy steel that is highly ductile and tough. It is ideal for applications that require high strength and good wear resistance, such as gears, pinions, and shafts. 8620 steel can be case-hardened to achieve excellent surface hardness and wear resistance. It is also popular for forgings and castings thanks to its excellent weldability and machinability.
Difference Between S7 Tool Steel and 8620
When comparing S7 Tool Steel and 8620, there is no clear winner. The choice depends on the specific requirements of your project. If your application requires high toughness, shock resistance, and wear resistance, S7 Tool Steel is the better choice. On the other hand, if your application requires high strength, good wear resistance, and excellent machinability, 8620 steel is the better choice. S7 tool steel is typically used for making tools and dies due to its superior hardness and toughness. 8620 steel is often used for applications requiring a combination of strength and toughness, such as shafts or gears.
Another critical factor to consider is the cost. S7 Tool Steel is more expensive than 8620 steel due to its higher carbon and alloy content. This is an important consideration if you are working with a tight budget. However, it is essential to note that the higher cost is justified by its superior properties, which make it a better long-term investment for certain applications.
The biggest difference between S7 tool steel and 8620 steel is their composition. S7 tool steel contains chromium, manganese, silicon, molybdenum, and vanadium, while 8620 steel contains chromium, nickel, and molybdenum. This difference in composition gives S7 tool steel superior hardness and toughness, making it ideal for use in tools and dies.
S7 tool steel has a higher hardness than 8620 steel, making it better suited for applications where wear resistance is important. The higher hardness of S7 tool steel also makes it more difficult to machine than 8620 steel.
S7 tool steel is also tougher than 8620 steel, making it less likely to chip or break under impact. This makes S7 tool steel a good choice for use in applications with high levels of force, such as in hammers or chisels.
In conclusion, choosing between S7 Tool Steel and 8620 Steel depends on the specific requirements of your project. Both materials have unique properties that make them suitable for specific applications. If you need big shock and wear resistance, S7 Tool Steel is the better choice. If you need high strength, good wear resistance, and excellent machinability, 8620 steel is the better choice. Whatever your choice, choose a reputable supplier to ensure you get high-quality steel that meets your requirements.
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