Hot work tool steels

Suitable for heavy duty hot work tools and dies: mainly for light alloy die casting applications. Hot extrusion tools, hot shear blades. Can also be used for plastic moulding dies and Engineering components/Parts requiring good toughness and torsional characteristics (after appropriate heat treatment processing).

Uddeholm Orvar 2 M is a chromium molybdenum-vanadium-alloyed steel which is characterised by:
• good resistance to abrasion at both low and high temperatures
• high level of toughness and ductility
• uniform and high level of machinability and polishability
• good high-temperature strength and resistance to thermal fatigue
• excellent through-hardening properties
• very limited distortion during hardening

Delivery condition: Soft annealed to approx. 185 HB

The steel is produced by a special melting and refining technique (ESR) in order to give mechanical properties with maximum uniformity and extra toughness. Suitable for heavy, hot work tools and dies: mainly for light alloy diecasting applications. Hot extrusion tools, hot shear blades. Can also be used for plastic moulding dies. Engineering components/parts requiring good toughness and torsional characteristics. 

Premium Cr-Mo-V alloyed hot work steel with good resistance to thermal fatigue. This steel is produced by a special melting and refining technique and meets the requirements of NADCA #207-2008.

Used for plastic moulding, specially large moulds requiring high toughness and polishability, and general hot work applications (shear blades, forging dies, hot gripper dies, extrusion tooling). Containing less vanadium than the widely used H13 grade tool steel giving a higher toughness, with some reduction in wear and temper resistance. Possessing good resistance to heat checking (thermal fatigue) and thermal shock. 

QRO 90 Supreme will normally out-performs standard hot work tool steels due to its more balanced alloy element content and its manufacturing techniques with achieve extremely high purity. This gives QRO90 mechanical properties unique among hot work tool steels. The combination of high temperature strength, temper resistance and thermal conductivity allow QRO90 to outperform other hot work tool steels that require resistance to heat checking and erosion with a high degree of toughness. Used in die casting and extrusion of nonferrous metals. Forging and extrusion of steel. Used instead of H13 for dies with complicated or thin wall profiles, with difficult to extrude alloys and on long extrusion runs to avoid multiple die changes. 

Used for Dies and Punches in Hot work applications (typically above 200ºC). Can also be used for tooling in high speed presses, extrusion tooling, core pins and inserts in die casting dies and plastic moulding dies. By using a more balanced range of alloy elements this steel has been developed to combine the advantages of high hardness, and wear resistance, of a high speed steel with the good toughness of a hot work tool steel. Designed to be used at up to 57 HRc.  

Unimax is a high hardness electroslag remelted tool steel which provides great wear resistance even over extended time at elevated temperatures. This product is suitable for coating and nitriding. Unimax performs very well in precision forging, hot stamping and moulding of reinforced plastics.

Tool steel that has proved highly satisfactory for hot and cold work and long-time service up to approx . 450°C (842°F) in various fields of application. Tools for hydrostatic presses, cold extrusion tools, cold heading and embossing tools, molds for the plastics industry, die casting tools for aluminium and zinc alloys, hot pressing tools, cold pilger mandrels.