High-Speed Tool Steel/Tool & Die Steel
High-speed steel (HSS or HS) is a subset of tool steels, commonly used as cutting tool material.
It is often used in power-saw blades and drill bits. It is superior to the older high-carbon steel tools used extensively through the 1940s in that it can withstand higher temperatures without losing its temper (hardness). This property allows HSS to cut faster than high carbon steel, hence the name high-speed steel. At room temperature, in their generally recommended heat treatment, HSS grades generally display high hardness (above Rockwell hardness 60) and abrasion resistance (generally linked to tungsten and vanadium content often used in HSS) compared with common carbon and tool steels.
Executive standards/ Typical steel grades/Product specifications
|Executive standards||Typical steel grades||Product specification|
User standard or mutual agreement
|Square rolled steel：|
Round forged steel：
Round rolled steel：
(1) The casting billet can be delivered in the state of continuous casting and electroslag remelting; the rolled steel can be delivered in the state of annealing, bright steel and quenching & tempering steel, etc.
(2) The steel grades listed in the table are only representative ones for such products. The Group may produce the corresponding steel grades according to relevant international, domestic and industrial standards or develop the related steel grades according to the requirements of the agreement.
|Tool Steel Round Bar||Grade||Diameter Range|
|Tool Steel Flat Bar||Grade||Size Range|