High Speed Steel

High Speed Steel also called HSS is commonly used for cuttin tools. It is superior than prior used carbon steels as it can withstand higher temperature without losing its hardness. It allows the HSS to cut faster than carbon steel and so the name resembles.

It is used in power-saw blades and drill bits. The main use of high-speed steels in the manufacturing of various cutting tools: drills, taps, milling cutters, tool bits, gear cutters, saw blades, etc.

High speed steels belong to the Fe–C–X  multi-component alloy system where X represents chromium, tungsten, molybdenum, vanadium, or cobalt. Generally, the X component is present in excess of 7%, along with more than 0.60% carbon.

                          HSS Tools

The major advantage of this steel was that it hardened when air cooled from a temperature at which most steels had to be quenched for hardening.