Hot Work

ASSAB boasts a long and wide-ranging experience in the supply of quality hot work tool steel with properties that allow optimum operations at constant elevated temperatures.

Such profile properties include good hot strength as well as excellent ductility and toughness. Other important tool steel properties are a good resistance against thermal cyclic stresses and a good hot wear resistance.

A hot favourite in the ASSAB hot work portfolio is the Dievar with unparalleled ductility, toughness and heat checking resistance together with high hot strength and temper resistance make it the best and natural choice for a wide range of hot work applications but particularly in high pressure die casting.

Coming a close second is speciality grades such as QRO 90 Supreme and Unimax characterising further improved heat resistance and hot wear resistance at elevated temperatures.

Check out other ASSAB tool steel suited for hot work in these common application areas: die casting, hot stamping, extrusion and hot forging.

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ASSAB 2344	ASSAB 2344 is a chromium-molybdenumvanadium alloyed tool steel with good resistance to abrasion at both low and high temperature.
ASSAB 2714	ASSAB 2714 is a Chromium-Nickel-Molybdenum-Vanadium alloyed tool steel. This product is primarily used in hammer forging applications and as support parts for extrusion tooling, e.g. backers, bolsters. ASSAB 2714 is DIN standard 1.2714, JIS standard SKT 4 material.
ASSAB 8407 2M	ASSAB 8407 2M is a Cr-Mo-V alloyed tool steel with good ductility, good toughness, good machinabiltiy as well as good hot wear resistance. ASSAB 8407 2M is a versatile tool steel which customers find useful in many different applications, primarily hot work applications. ASSAB 8407 2M is a DIN standard 1.2344, JIS standard SKD 61 material and is conventionally produced. In markets served by Uddeholm, ASSAB 8407 2M is promoted as Orvar 2M.
ASSAB 8407 Supreme	ASSAB 8407 Supreme is our trusted premium H13 steel for all kinds of hot work tool applications. Proven over and over again, ASSAB 8407 Supreme has stood the test of time and remains well known in the tooling industry for its high and reliable performance and ease of machining. In markets served by Uddeholm, ASSAB 8407 Supreme is promoted as Orvar Supreme.
ASSAB Tool Steel for Die Casting
ASSAB Tool Steel for Forging Applications
ASSAB Tool Steel Performance Chart	List of ASSAB products
Caldie	Caldie is a medium alloyed tool steel suitable for short and medium run tooling in applications where a combination of very high chipping resistance and compressive strength is required. The property profile makes Caldie a robust cold work tool steel for heavy duty blanking and forming of AHSS (Advanced High Strength Steel).
Dievar	Dievar is ASSAB's premium steel developed for the demanding application of High Pressure Die Casting. It is the industry benchmark.
Dievar Sales Brochure	Dievar Sales Brochure (English version)
Formvar	Formvar is a high performance hot work tool steel which offers a very good resistance to hot wear and plastic deformation. It is a solid upgrade choice especially from DIN 1.2344 and 1.2343 forging tools on the market.
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QRO 90 Supreme	QRO 90 Supreme is an electro slag remelted steel suitable for applications such as hot stamping, brass forging, die casting core inserts and brass extrusion. With its outstanding thermal fatigue resistance, thermal conductivity and temper back resistance QRO 90 Supreme excels as a tool steels where tools tempers down quickly to lower hardness.
Unimax	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.
Vidar 1 ESR	Vidar 1 ESR is a product suitable for both hot work and plastic mould applications, especially large plastic moulds that require good toughness in combination with high surface finish obtained by polishing or texturing. Vidar 1 ESR is an electroslag remelted (ESR) steel which provides reduction of inclusions in the material.
VIKING	Viking is an oil-air-vacuum hardening steel which is characterised by good dimensional stability during heat treatment, good machinability and grindability; and excellent combination of toughness and wear resistance.