Heat treatment of high-speed steels

Tools treated in our salts are well known for their superior quality. Due to the highest temperature uniformity and quickest heat transfer a fine grain structure with the corresponding proportion of solute carbides is achieved. Pre eutectoid carbide precipitation at the grain boundaries or local formation of intermediate structure are avoided. Our technology provides benefits like:

  • Highest hardness combined with excellent toughness
  • Partial hardening easy realizable
  • Ideal quenching conditions regardless of part diameter
  • Lowest distortion compared to other hardening processes
Product Application Working
temp. in °C
GS 540 Salt for the 2nd preheating stage 800 - 900
GS750/R2 2-salt systems for the 3rd preheating stage 1050 - 1100
CARBONEUTRAL™ For austenitizing of high alloyed tool and high-speed steels. Additives are reducing decarburization. 1000 – 1300
SEMPERNEUTRAL™ 950 For austenitizing of high alloyed tools and high-speed steels. Additives prevent from decarburization. 1100 – 1300
SEMPERNEUTRAL™ 1100 For austenitizing of high-speed steels. Additives prevent from decarburization. Less sensitive to moisture. 1200 – 1300
GS 430 Quenching salt for high alloyed tool and high speed steels. 500 - 580
DUROPERL For covering the CARBONEUTRAL or SEMPERNEUTRAL baths.  
SILIRON HS Additive to accelerate the subsequent aqueous cleaning.  
GS 960 For saturating a new lining of the furnace.