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Alloy tool steel for machine knife
- Jul 08, 2018 -

Alloy tool steel is the most common material for paper cutting knife, veneer slicing knife, ice resurfacing blade and round cutting knife.

Alloy tool steel is a kind of steel with chromium, molybdenum, tungsten and vanadium added to carbon tool steel to improve its hardenability, toughness, wear resistance and heat resistance. It is mainly used for manufacturing measuring tools, cutting tools, shock resistant tools and cold, hot mould and some special tools.

Use classification

The hardenability, hardenability, abrasion resistance and toughness of alloy tool steel are higher than that of carbon tool steel. Among them, steel with high carbon content (carbon mass fraction is more than 0.80%) is mostly used to manufacture cutting tools, measuring tools and cold working molds. The hardness of such steel after quenching is above HRC60, and it has enough abrasion resistance. Steel with medium carbon content (carbon mass fraction 0.35%~0.70%) is mostly used to make hot mould. This kind of steel has a slightly lower hardness after quenching, HRC50~55, but good toughness.