hot hardness मीनिंग इन हिंदी

These tool steels are low carbon and moderate to high alloy that provide good hot hardness and toughness and fair wear resistance due to a substantial amount of carbide.
The following is a range of improved properties in alloy steels ( as compared to carbon steels ) : strength, hardness, toughness, wear resistance, corrosion resistance, hardenability, and hot hardness.