Technical information

High speed steel and solid carbide for taps

Code Description Hardness Toughness Structure (500x)
HSS (HSS)* Conventional high speed steel
Used exclusively for hand taps (except A100).
Hss Material Microscope Magnification Detail 500x
HSSE (HSS-E)* Conventional high speed steel
For general applications.
Hsse Hss E Material Microscope Magnification Detail 500x
HSSK (HSS-E-PM)* Powder metallurgy high speed steel
Used in applications where a compromise between high hardness and high toughness is needed.
Hssk Hss E Pm Material Microscope Magnification Detail 500x
HSSP (HSS-E-PM)* High performance powder metallurgy high speed steel
For tough materials and extreme applications.
Hssp Hss E Pm Material Microscope Magnification Detail 500x
HSSZ (HSS-E-PM)* High performance powder metallurgy high speed steel
For applications where extremely high performance and productivity are requested.
Hssz Hss E Pm Material Microscope Magnification Detail 500x
HM Solid carbide
For heat-treated steels and abrasive materials.
Hm Carbide Material Microscope Magnification Detail 500x
(*) Designation according to ISO 11054

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