Carbon steel taps are made from carbon steel, which is a basic form of steel with a higher carbon content. They are suitable for cutting threads in softer materials like aluminum, brass, and mild steel. Carbon steel taps are generally less expensive but have lower heat resistance and wear resistance compared to high-speed steel (HSS) taps. They are prone to dulling and can break more easily under high-stress conditions or when used on harder materials.
High-speed steel taps, on the other hand, are made from an alloy that includes elements like tungsten, molybdenum, and chromium, which enhance their performance. HSS taps can withstand higher temperatures without losing their hardness, making them suitable for cutting threads in harder materials such as stainless steel and other tough alloys. They offer better wear resistance, durability, and a longer lifespan compared to carbon steel taps. HSS taps are more expensive but are preferred for industrial applications due to their superior performance and reliability.
In summary, the main differences lie in their material composition, cost, durability, and suitable applications. Carbon steel taps are cost-effective for softer materials, while high-speed steel taps are more durable and versatile, suitable for a wider range of materials, including harder ones.