What metal is known for its strength at elevated temperatures and is a key alloy for many cutting tools?

Tungsten is recognized for its remarkable strength and hardness at elevated temperatures, making it a crucial material in the manufacturing of cutting tools. Its high melting point, around 3,422 degrees Celsius (6,192 degrees Fahrenheit), enables it to maintain structural integrity and perform effectively during high-temperature machining operations. This property is particularly important for cutting tools that are subjected to intense heat and friction, as tungsten helps improve their durability and performance.

In contrast, the other metals listed do not possess the same level of strength at high temperatures. Zinc has a relatively low melting point and is primarily used for galvanizing and corrosion resistance rather than high-temperature applications. Copper, while it has excellent electrical and thermal conductivity, does not offer the necessary strength when exposed to elevated temperatures for cutting tools. Lead, on the other hand, is soft and malleable with a low melting point, making it unsuitable for applications requiring high strength and durability. The unique properties of tungsten make it a vital alloy in the production of reliable, high-performance cutting tools.