Abstract: A pre-alloyed powder having a composition consisting of, in weight % (wt. %): C, 0.02-0.04; Si, 0.1-0.4; Mn, 0.1-0.5; Cr, 11-13; Ni, 7-10; Cr+Ni, 19-23; Mo, 1-25; Al, 1.4-2.0; N, 0.01-0.75. Optionally, the pre-alloyed powder contains: Cu, 0.05-2.5; B, 0.002-2.0; S, 0.01-0.25; Nb, 0.01 max; Ti, 2 max; Zr, 2, max; Ta, 2 max; Hf, 2 max; Y, 2 max; Ca, 0.0003-0.009; Mg, 0.01 max; O, 0.003-0.80; and REM, 0.2 max. Fe and impurities comprise the balance.

Abstract: The invention relates hot work tool steel. The steel comprises the following main components (in wt. %): C 0.27-0.38 Si 0.10-0.35 Mn 0.2-0.7 Cr 4.5-5.5 Mo 2.05-2.90 V 0.4-0.6 N 0.01-0.12 H ?0.0004 S ?0.0015 balance optional elements, iron and impurities.

Abstract: The invention relates steel suitable for plastic moulding tools. The steel comprises the following main components (in wt. %): C 0.02-0.04 Si 0.1-0.4 Mn 0.1-0.5 Cr 11-13 Ni 7-10 Mo 1-25 Al 1.4-2.0 N 0.01-0.15 optional elements and impurities balance. The invention is also directed to pre-alloyed powders made from said alloy, the use of such powder as well as AM articles produced from said powder.

Abstract: The invention relates hot work tool steel. The steel comprises the following main components (in wt. %): C 0.27-0.38 Si 0.10-0.35 Mn 0.2-0.7 Cr 4.5-5.5 Mo 2.05-2.90 V 0.4-0.6 N 0.01-0.12 H ?0.0004 S ?0.0015 balance optional elements, iron and impurities.

Abstract: Steel is described having a chemical composition, in weight-%, of 0.3 to 0.5% carbon (C), from traces to a max. of 1.5% silicon (Si), 0.2 to 1.5% manganese (Mn), 0.01 to 0.2% sulfur (S), 1.5 to 4% chromium (Cr), 1.5 to 5% nickel (Ni), 0.5 to 2% molybdenum (Mo), which at least partially may be replaced by twice as much tungsten (W), 0.2 to 1.5% vanadium (V), from traces to a max. of 0.2% rare earth metals, and a balance essentially of only iron, impurities and accessory elements in normal amounts. In addition, a method for manufacturing a blank of the steel and a process for manufacturing a cutting tool body or holder for cutting tools of the steel is described.

Abstract: Steel is described having a chemical composition, in weight-%, of 0.3 to 0.5% carbon (C), from traces to a max. of 1.5% silicon (Si), 0.2 to 1.5% manganese (Mn), 0.01 to 0.2% sulfur (S), 1.5 to 4% chromium (Cr), 1.5 to 5% nickel (Ni), 0.5 to 2% molybdenum (Mo), which at least partially may be replaced by twice as much tungsten (W), 0.2 to 1.5% vanadium (V), from traces to a max. of 0.2% rare earth metals, and a balance essentially of only iron, impurities and accessory elements in normal amounts. In addition, a method for manufacturing a blank of the steel and a process for manufacturing a cutting tool body or holder for cutting tools of the steel is described.