Bohler-Uddeholm UDDEHOLM DIEVAR® Hot Work Tool Steel

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Bohler-Uddeholm UDDEHOLM DIEVAR® Hot Work Tool Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; Chrome-moly Steel; Tool Steel; Hot Work Steel
Material Notes:	Description: Uddeholm Dievar is a high performance chromium-molybdenum-vanadium alloyed hot work tool steel which offers a very good resistance to heat checking, gross cracking, hot wear and plastic deformation. Dievar is characterized by: Excellent toughness and ductility in all directions Good temper resistance Good high temperature strength Excellent hardenability Good dimensional stability throughout heat treatment and coating operations Applications: Heat checking is one of the most common failure mechanism e.g. in die casting and now days also in forging applications. Uddeholm Dievar’s superior ductility yields the highest possible level of heat checking resistance. With Uddeholm Dievar’s outstanding toughness and hardenability the resistance to heat checking can further be improved. If gross cracking is not a factor then a higher working hardness can be utilized (+2 HRC). Regardless of the dominant failure mechanism; e.g. heat checking, gross cracking, hot wear or plastic deformation. Uddeholm Dievar offers the potential for significant improvements in die life and then resulting in better tooling economy. Uddeholm Dievar is the material of choice for the high demand die casting-, forging- and extrusion industries.
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Available Properties

Density, hardness of 45 HRC
Density, hardness of 45 HRC
Density, hardness of 45 HRC
Hardness, Brinell, Soft annealed
Tensile Strength, Ultimate, hardness of 44 HRC
Tensile Strength, Ultimate, hardness of 48 HRC
Tensile Strength, Ultimate, hardness of 52 HRC
Tensile Strength, Yield, hardness of 44 HRC
Tensile Strength, Yield, hardness of 48 HRC
Tensile Strength, Yield, hardness of 52 HRC
Elongation at Break, hardness of 52 HRC
Elongation at Break, hardness of 44 HRC
Elongation at Break, hardness of 48 HRC
Reduction of Area, hardness of 52 HRC
Reduction of Area, hardness of 44 HRC
Reduction of Area, hardness of 48 HRC
Modulus of Elasticity, (hardness of 45 HRC)
Modulus of Elasticity, hardness of 45 HRC
Modulus of Elasticity, hardness of 45 HRC
CTE, linear, hardness of 45 HRC
CTE, linear, hardened to 45 HRC
Thermal Conductivity, hardness of 45 HRC
Thermal Conductivity, hardness of 45 HRC
Processing Temperature, hardening temperature, then quenched in oil and tempered twice at 1160°F for 2 hrs (hardness = 45 HRC)
Carbon, C
Chromium, Cr
Iron, Fe, As Balance
Manganese, Mn
Molybdenum, Mo
Silicon, Si
Vanadium, V

Property Data

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