UDDEHOLM TOOL STEELS FOR EXTRUSION TOOLING · even possibilities to assist in tool maintenance ... press parts. The requisite ... extrusion dies and extrusion tooling components

TOOLING APPLICATION EXTRUSION 1

UDDEHOLM TOOL STEELS FOR

EXTRUSIONTOOLING

TOOLING APPLICATION EXTRUSION2

This information is based on our present state of knowledge and is intended toprovide general notes on our products and their uses. It should not therefore beconstrued as a warranty of specific properties of the products described or awarranty for fitness for a particular purpose.

Classified according to EU Directive 1999/45/ECFor further information see our “Material Safety Data Sheets”.

Edition: 2, 07.2016

© UDDEHOLMS ABNo part of this publication may be reproduced or transmitted for commercial purposeswithout permission of the copyright holder.

® The Uddeholm tool steel grades mentioned in this brochure aretrademark registered in the European Union.


CONTENTS

Introduction 4

Uddeholm hot work tool steel fordies and extrusion tooling 5

Tool steel properties for extrusion dies and tooling 6

Material selection for dies and extrusion tooling parts 8

Manufacturing of dies and tooling 12

Tool steel product programme

– general description 14

– chemical composition 15

Steel and hardness selection 16

Complete extrusion systems 18

Selecting a tool steel supplier is a key decision for all parties, including the

tool maker, the tool user and the end user. Thanks to superior material proper-

ties, Uddeholm’s customers get reliable tools and components. Our products

are always state-of-the-art. Consequently, we have built a reputation as the

most innovative tool steel producer in the world.

Uddeholm produce and deliver high quality Swedish tool steel to more than

100,000 customers in over 100 countries. We secure our position as a world-

leading supplier of tool steel.

Wherever you are in the manufacturing chain, trust Uddeholm to be your

number one partner and tool steel provider for optimal tooling and production

economy.

Quite simply, it pays to go for a better steel.


INTRODUCTIONThe production base of the Uddeholm company istool steel; however, our business idea is to selland market tooling materials and services to toolmakers, tool users, machine builders, and theircustomers, providing the best total economy.

Steel for industrial tools must be of very highquality. This is the primary guarantee that the toolparts produced meet specified requirements. Inthis context, we maintain that there is a differencebetween steel and steel; most of our grades areunique to the market—that is why we use our ownbrand names—and have been developed over theyears by our experienced engineers and metallur-gists.

However, a first-class tool steel goes only partof the way to providing an optimum solution for atool user. Hence, Uddeholm’s present-day offerstretches beyond that of the traditional steelsupplier and includes a wide range of comple-mentary services aimed at ensuring that tool users

really get the best from our tool-material prod-ucts. In liaison with tool makers, tool users and, insome instances, even end users (i.e. those whouse the parts which the tool shall make), we aimto develop complete solutions for optimaleconomy, of which the supply of the tool materialis only one facet. In practical terms, this meansthat apart from the tooling material and associ-ated know-how, we can in many cases offerservices such as machining, heat treatment andeven possibilities to assist in tool maintenanceand repair e.g. welding service. We are convincedthat our policy of supplying services over andabove the tooling material is necessary if ourcustomers, particularly tool users and end users,are to enjoy the best tooling economy in theirproduction. In these times when escalatingproduction costs cannot always be covered byincreased prices, then getting the most out oftooling is often a vital ingredient in attaining viableproduction economy.


UDDEHOLM HOT WORKTOOL STEELS FORDIES AND EXTRUSIONTOOLINGUddeholm hot work tool steel for themanufacture of tools and components inextrusion presses:

Uddeholm Impax SupremeUddeholm Alvar 14

Uddeholm Orvar 2 Microdized

Uddeholm Vidar 1

Uddeholm QRO 90 Supreme

Uddeholm Formvar

Uddeholm Dievar

Uddeholm Unimax

The steel grades have different characteristicssuitable for:

• mandrels

• mandrel holders

• stems

• dummy blocks

• liners

• intermediate liners

• mantles

• dies

• die rings

• bolsters

• wedge blocks

containers

Uddeholm have long experience in producing hotwork tool steel for dies and extrusion toolingcomponents. The demands on the tool steeldepend on the overall working temperature, i.e.on the metal being extruded, and on the locationof the component in question in relation to thehot billet and the emerging extruded profile. Thecomponent which is subjected to the most severethermal influence and which is also most highlystressed is, of course, the die. Other parts whichexperience high temperatures are the liner,dummy block and, in the cases where one isused, the mandrel.

The typical temperature ranges experienced bythese components during extrusion are:

• aluminium and its alloys: 400–600°C(750–1110°F)

• copper and copper alloys: 600–1000°C(1110–1830°F)

• Steel: 1100–1250°C (2010–2280°F)

An optimum choice of tool steel and correct heattreatment are essential in order to increase the lifeof extrusion dies and extrusion tooling compo-nents which are subjected to these severethermal conditions.


Hardness decrease, HRC15

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TOOL STEEL PROPER-TIES FOR EXTRUSIONDIES AND TOOLINGThe properties profile required for the tool steel indifferent components of an extrusion press isfairly similar. However, the varying severity of thethermal environment means that the desirableheat-resisting properties of hot work tool steel arerequired to greater or lesser extent in diffe-rentpress parts. The requisite properties profile isessentially as follow:

• adequate resistance to wear at elevatedtemperatures (e.g. dies, liners, mandrels)

• enhanced hot yield strength and hot hardness

• high level of temper resistance and resistanceto softening at elevated temperatures

• good compressive strength (e.g. dummyblocksand stems) and bending strength (e.g. dies,mandrels) at high temperatures

• high creep strength

• acceptable resistance to thermal fatiguecracking

Uddeholm’s tool steel product programme forextrusion dies and extrusion tooling componentsis presented at the end of this brochure.

For press components and dies subjected tothe highest temperature, we recommend:

• Uddeholm Orvar 2 Microdized

• Uddeholm Vidar 1

• Uddeholm QRO 90 Supreme

• Uddeholm Formvar

• Uddeholm Dievar

• Uddeholm Unimax

In general Uddeholm Orvar 2 Microdized andUddeholm Vidar 1 are used in normal applicationsinvolving moderate temperatures and stresses,e.g. dies and other tooling components for pro-duction of standard aluminium profiles.

For more extreme conditions UddeholmQRO 90 Supreme, Uddeholm Formvar, UddeholmDievar and Uddeholm Unimax are recommended;these are speciality grades characterized by anextreme combination of toughness, ductility andstrength at elevated temperatures.

TEMPER RESISTANCE

Temper resistance can be assessed from thetempering curve for a hardened tool steel. In this,the hardness at room temperature is plottedagainst tempering temperature for given temper-ing time. Another method of presenting temperresistance data is to plot room temperaturehardness against time at a given tempering tem-perature. The better the steel retains its hardnessas the temperature or the time increases, thebetter its temper resistance,

HOT STRENGTHAND HOT HARDNESS

In contrast to temper resistance, which is definedin terms of hardness at room temperature, hotstrength and hot hardness refer to properties athigh temperature. In general, improved temperresistance is associated with increased hotstrength and hot hardness. It can be pointed outthat good hot hardness and hot strength areimportant prerequisites for enhanced wearresistance at elevated temperatures. A high levelof hot hardness and hot strength is also importantin order to achieve adequate resistance tothermal fatigue cracking.

COMPRESSIVE STRENGTHAND BEND STRENGTH AT HIGHTEMPERATURE

The greater the level of hot strength or hothardness for a tool steel the greater is its elevated

Fig. 1. Hardness drop after 24 hours at 600°C (1110°F)during compression.

QRO 90 SUPREMEORVAR 2 MICRODIZED


UDDEHOLMTOOL STEEL

ORVAR 2 MVIDAR 1QRO 90 SUPFORMVARDIEVARUNIMAX

temperature bend strength and compressivestrength. The improved hot compressive strengthis reflected in figure 1, which shows the drop inhardness from a given initial hardness, over 24 hfor Uddeholm Orvar 2 Microdized and UddeholmQRO 90 Supreme loaded in compression at600°C (1110°F). It is clear, from comparison withthe hardness decrease in the unloaded condition,that the mechanical stress accelerates thesoftening of the steel. Uddeholm QRO 90 Supre-me retains the same degree of superiority overUddeholm Orvar 2 Microdized irrespective ofwhether the steel is subjected to mechanicalloading or not during holding at high temperature.

The high temperature bend strength is influ-enced by, apart from hot hardness, the toughnessand ductility of the steel.

DUCTILITY AND TOUGHNESS

The ductility of a die material quantifies the abilityto resist plastic strain without cracking and isgreatly influenced by the purity and the homo-geneity of the material.

Fig. 2. Qualitative comparison of critical steel properties (the longer the bar, the better).

Fig. 3. Qualitative comparison of resistance to different tool failures (the longer the bar, the better).

CREEP STRENGTH

Creep is the slow, time dependent deformation ofa metal subjected to loading at a level below whatis normally required to plastically deform themetal at the temperature in question. A goodcreep strength improves the resistance to fractureat high temperatures and long time dependentloading.

Figure 2 demonstrates the qualitative compari-son of critical steel properties and figure 3 theresistance to different failures.

The toughness of the die material is the ability toresist loading without cracking at sharp notchesor other stress raisers. The toughness dependson the die material and its heat treatment.

Uddeholm tool steel are manufactured to a veryhigh degree of purity with regard to non-metallicinclusions. This ensures a level of toughness andductility which is adequate for even the mostexacting applications in extrusion, e.g. where diesand other tooling components are subjected tosevere bending stresses at elevated temperature.

UDDEHOLMTOOL STEEL

ORVAR 2 MVIDAR 1QRO 90 SUPFORMVARDIEVARUNIMAX

PLASTIC PREMATURE HEATHOT WEAR DEFORMATION CRACKING CHECKING

CREEP STRENGTHTEMPER HOT STRENGTH COMPRESSIVE DUCTILITYRESISTANCE HOT HARDNESS STRENGTH TOUGHNESS


MATERIAL SELECTIONFOR DIES AND EXTRU-SION TOOLING PARTSEXTRUSION DIES

An extrusion die is exposed to high temperaturesderived not only from the heated billet but alsofrom heat generated by deformation and friction.In addition, the die is subjected to high pressureand, in the area of the die land, considerablefrictional forces. In aluminium extrusions, the hardoxide film, which forms instantaneously on thesurface of the extruded metal, causes extensiveabrasion of the die during service.

DIE DESIGNThe die design and manufacture of extrusion diesis a highly specialized procedure requiring skilleddie makers. It is necessary at the design stage tomake proper allowance for shrinkage, elasticdeformation, the nature of the profile section andthe highly uneven velocity distribution whenextruding complicated profiles (so that the profileremains more or less straight when extruded).

The following criteria should be fulfilled duringdie design and manufacture:

• very tight tolerances, so that the extrudedprofile does not have excessive weight perunit length (material yield)

• correct die geometry from the beginning,thereby avoiding expensive reworking

• carefully finished land surface such that theprofile surface is acceptable

• proper design, choice of die steel, heat treat-ment etc., giving maximum die life

• rational production resulting in low diemanufacturing costs

FACTORS DETERMINING DIE LIFEThe stresses experienced by an extrusion die inservice are both mechanical and thermal in origin.However, the thermal stresses arising fromtemperature differences are generally quitemoderate in extrusion, where the temperaturechanges occur only fairly slowly. Hence, thermalfatigue cracks develop less gradually in extrusionthan in other presses where hot work steel are

used and where the temperature cycles are muchmore severe e.g. die casting. On the other hand,wear is very pronounced in extrusion, since theprocess involves sliding contact between the diesteel and the metal being extruded. Die life istherefore finite and is limited by (in order ofimportance):

• wear

• plastic deformation or cracking

• Identation

• stability of support tooling

• formation of thermal fatigue cracks

The second point above deserves comment.Plastic deformation or even cracking of dies canoccur particularly when extruding very compli-cated profiles through dies with high tongueratios. In this case, the very great stress on thetongue combined with the locally high tempera-ture can cause bending; in some instances, thetongue can actually break off if the transversetoughness of the steel is inadequate.

A tool steel with good hot strength and suffi-cient transverse toughness is a must for dies withhigh tongue ratios.

IMPROVEMENT OF WEAR RESISTANCEHot work tool steel are amenable to nitridingwhich produces a hard, wear-resistant surfacelayer. Nitriding is usually effected via salt-bathtreatment, e.g. Tufftriding, and a given extrusiondie can be treated many times until it is consid-ered worn out. Nitriding of extrusion dies not onlyimproves wear resistance but also reducesfriction.

In the context of wear resistance, the temperresistance, hot strength and hot hardness of thesteel are all important. In the region of contactbetween die and extruded metal, considerabledeformational and frictional heat is developed andhigh temperatures are experienced. Appre-ciablewear will thus result if the temperature become sohigh that the surface of the die steel in the landregion softens extensively. In the case of anitrided die, the underlying steel can not, undersuch circumstances, give proper support to thenitrided layer which will wear more rapidly thanusual.


TOOL STEEL SELECTION FOR DIESStandard dies for aluminium extrusion are madefrom Uddeholm Orvar 2 Microdized and Udde-holm Vidar 1, heat treated to 45–50 HRC and thennitrided/nitrocarburized, usually via tufftriding orsome similar treatment. The nitrid-ed layer is upto 0.1 mm (0.004 inch) thick and has a surfacehardness exceeding 1000 HV.

For pressing high strength aircraft alloys, it isimportant that the die material exhibits adequatetransverse toughness in view of the very highpressures required for extrusion, which canotherwise be sufficient to fracture the die.

For dies with high tongue rations and for pro-ducing complicated profiles, using UddeholmQRO 90 Supreme will usually resulting consider-ably better life than W.-Nr. 1.2344 (AISI H13 type)steel even for aluminium extrusion. Such dies arecharacterized by excessive heat generation in theland area and the superior hot strength/hothardness of Uddeholm QRO 90 Supreme engen-ders enhanced resistance to wear and bending/breakage. Practice has shown that UddeholmQRO 90 Supreme can be used for tongue rationsup to 6:1 whereas W.-Nr. 1.2344 (AISI H13 type)steel is limited to about 3:1 maximum. In addition,the superior wear resistance of Uddeholm QRO90 Supreme renders it eminently suitable for longrun aluminium dies.

Uddeholm QRO 90 Supreme is also recom-mended for less complicated dies in extrusion ofcopper alloys and other metals and alloys, whichare extruded at higher temperatures than alu-minium.

Uddeholm Formvar is a high performance hotwork tool steel when good temper resistance isneeded to maintain hardness.

Uddeholm Dievar is a hot work tool steelsuitable when premature cracks and heat check-ing are the dominating failure mechanisms. Also,in combination with other failure mechanisms ashot wear and plastic deformation UddeholmDievar offers potential solutions for an improvedtooling economy.

Uddeholm Unimax is an updated Dievar qualityand can be hardend to 57–58 HRC giving a goodcombination of hot wear and toughness.

STEMS

Stems are subjected to high pressure duringextrusion but their working temperature isrelatively low (not in contact with billet). A stemshould not bend or otherwise deform at thetemperature of operation.

Uddeholm Orvar 2 Microdized is a suitable toolsteel for stems (46–50 HRC), independent ofwhat material is to be extruded.


DUMMY BLOCKS

The dummy block physically separates the stemfrom the billet and, as such, has two basicfunctions:

• to protect the stem

• to prevent backwards “leakage” of the metalbeing extruded

Exchangeable dummy blocks have been used formany years in all types of extrusion applications.The disc-like dummy block is changed after each

billet and a number of blocks are kept incirculation. For extrusion of copper, copper alloysand steel, an exchangeable dummy block isalways used (high temperature, dummy blockmust cool between billets). However, the fixeddummy block has become standard for aluminiumextrusion. This comprises two parts, a “male” anda “female”; the male is coupled to the femalewhich in turn is fixed to the stem. Fixed dummyblocks are not changed between billets.

The fixed type of dummy block has the advan-tages of:

• improved productivity

• better yield

• superior surface finish of the extruded profile

Since both types of dummy block are subjectedsimultaneously to high pressure and temperature,the tool steel used for these components isrequired to exhibit:

• high level of hot strength/hot hardness

• good temper resistance

• good resistance to plastic deformation viacreep

Uddeholm Orvar 2 Microdized is recommendedfor both exchangeable and fixed dummy blocksin all extrusion applications. Also UddeholmDievar and Uddeholm QRO 90 Supreme can beused for dummy blocks.

One important function of the dummy block isto expand more or less elastically during theforward part of the cycle so as to tighten againstthe liner and prevent backward metal leakage. It isimportant that the yield stress of the steel is notexceeded during the expansion phase resulting inplastic deformation. High forces would be re-quired to release the dummy block on it’s returnphase, increasing the risk of movement in theliner. The relevant stress-strain curve is that at the

actual working temperature of the dummy block.Hence, the better the hot yield strength of the toolsteel, the better the chance of not exceeding theelastic limit during service and the lower the riskfor permanent deformation of the dummy block.In a similar vein, the dummy block should notcreep excessively during service, i.e. shouldexhibit as little slow, permanent deformation aspossible at loads below the elastic limit.


The function of the container is to take up thehydrostatic and tangential stresses derived fromthe extrusion force. Nowhere in the containershould these stresses exceed the elastic limit, i.e.the working stress range is similar to that for adummy block with the qualification that the linerand the mantle are at different temperatures andwill thus be characterized by different stress-strain curves.

If the elastic limit is exceeded for the steel inthe mantle, the whole container will deformplastically to an extent that it may go out oftolerance. In extreme loading situation, it is notinfeasible that the entire container can crack.Containers subjected to heavy loads are thusnormally built in three parts. While this is obvi-ously more expensive, it does give the advantagethat the stress levels in each individual part arereduced appreciably at a given extrusion pres-sure, when compared with a two-part container.

MANDRELS

Mandrels normally find application for extrusionof steel and copper tube.

Mandrels are subjected to severe operatingconditions and the tool steel used to make themshould possess:

• high strength at elevated temperatures

• good temper resistance

i.e. the same properties profile as for dummyblocks. For thin mandrels, resistance to bendingat elevated temperatures is important. Hence,Uddeholm QRO 90 Supreme will give superiormandrel life in most applications. When internalcooling is used Uddeholm Dievar, because of itsgood ductility and toughness, can be recom-mended.

CONTAINERS

Containers can be built in two or three parts.A two-part container consists of a mantle and aliner, while a three-part one comprises a mantle,an intermediate liner and a liner proper.


MANUFACTURING OFDIES AND TOOLINGThe machinability and heat treatment charac-teristics of the tool steel are significant para-meters influencing the relative ease of manu-facture of extrusion dies and extrusion toolingcomponents.

MACHINABILITY

Uddeholm hot work tool steel; Orvar 2 Micro-dized, Vidar 1, QRO 90 Supreme and Hotvar arecharacterized by a high degree of freedom fromoxide inclusions and an annealed microstructureconsisting of a very even distribution of smallcarbides. The annealed hardness is low, 180–210 HB. These features are concomitant with agood machinability in the annealed condition.Advanced process control ensures that thevariation in machining characteristics is minimalfrom batch to batch.

Uddeholm Dievar’s and Uddeholm Unimax’sextreme microcleanliness and special chemicalcomposition make the machinability less com-petitive compared to the steel mentioned above.

Our product information brochures for Udde-holm Orvar 2 Microdized, Uddeholm QRO 90Supreme, Uddeholm Formvar and UddeholmDievar give detailed information pertaining tomachining of these products. Other Uddeholmbrochures worth consulting in the context of die/tooling manufacture are: “Grinding of Tool Steel”,“EDM (spark-erosion) of Tool Steel” and “Weldingof Tool Steel”.

HEAT TREATMENT

Hot work tool steel used for extrusion dies andtooling are normally supplied in the annealedcondition. After machining, the tool/die must beheat treated in order that the steel develops itsoptimum combination of hardness, toughnessand heat resistance. These properties are control-led through proper choice of austenitizing tem-perature, cooling conditions during hardening andtempering temperature/time.

More information is given in the productbrochures and in the treatment brochure “Heattreatment of Tool Steel”.

INTERMEDIATE LINER

The intermediate liner, when one is used, isnormally made in Uddeholm Orvar 2 Microdized,37–43 HRC.

LINER

Uddeholm Orvar 2 Microdized or UddeholmVidar 1 hardened and tempered to 44–48 HRC isnormally used as a liner material in aluminiumextrusion. For more difficult aluminium alloys,Uddeholm QRO 90 Supreme is recommended.

SUPPORTING TOOLS

The die is positioned in a die ring, which in turn isattached to and is supported by one or moreholder parts such as die rings, bolsters, wedgeblocks etc. No problems are normally encoun-tered with these parts in the extrusion of simpleprofiles; for more complicated shapes, however, itcan be difficult to arrange for adequate supportfor the die. If there is any risk for overloading ofthe support tooling, it is important to select a toolsteel with adequate hardness at the workingtemperature. In general, Uddeholm Orvar 2Microdized is used for die rings and UddeholmAlvar 14 for bolsters. Other support tools such aswedge blocks and die heads can, as long as theservice temperature is low, be made in prehard-ened Uddeholm Impax Supreme.

MANTLE

Prehardened tool steel such as Uddeholm ImpaxSupreme can be used for a low-stressed containermantle (hardness approx. 310 HB).

For highly-stressed containers, Uddeholm Orvar2 Microdized at 37–43 HRC is a better choice.Compared with prehardened, quenched-and-tempered steel, Uddeholm Orvar 2 Microdizedexhibits superior temper resistance and hotstrength. With Uddeholm Orvar 2 Microdized asmantle material, there is virtually no chance of themantle softening during service to the extent thatthe whole container suffers permanent deforma-tion.



UDDEHOLMTOOL STEEL

ORVAR 2 MICRODIZEDW.-Nr. 1.2344 (AISI H13)

VIDAR 1W.-Nr. 1.2343 (AISI H11)

QRO 90 SUPREME

FORMVAR

DIEVAR

UNIMAX

ALVAR 14W.-Nr. l.2714

IMPAX SUPREMEW.-Nr. 1.2738 (AISI P20)

A Cr-Mo-V-alloyed hot-work steel with good high temperature strengthand good reistance to abraison. Recommended in most cases fortooling components and dies in aluminium extrusion which come intodirect contact with the hot billet.

A Cr-Mo-V-alloyed hot-work steel with good combination of high tem-perature strength, good toughness and good resistance to abraison.

A premium hot work steel with very good strength and hot hardness atelevated temperatures. Recommended for dies and all types of extrusiontooling subjected to maximum working temperatures.

A high performance hot work tool steel with very good resistance to hotwear and plastic deformation.

A premium Cr-Mo-V hot work steel with good high temperature strengthand excellent toughness and ductility in all directions. Recommended indies and extrusion components where the demands on toughness andductility are the highest.

A premium Cr-Mo-V alloyed steel with a good toughness and ductility upto a hardness of 58 HRC.

Cr-Ni-Mo-alloyed hot work steel. Recommended for support tooling inextrusion, e.g. bolsters and wedge blocks.

Prehardened Ni-Cr-Mo-alloyed steel supplied at approx. 310 HB, withgood machinability. Suitable for wedge blocks and other support tools,mantles and intermediate liners, at lower temperature.

TOOL STEEL PRODUCT PROGRAMMEFOR EXTRUSION INDUSTRYGENERAL DESCRIPTION



DELIVERY ANALYSIS % HARDNESS

AISI C Si Mn Cr Mo V Ni Brinell

ORVAR 2 H13 0.39 1.0 0.4 5.3 1.3 0.9 – Annealed MICRODIZED (W.-Nr. 1.2344) ~180

VIDAR 1 H11 0.38 1.0 0.4 5.0 1.3 0.4 – Annealed(W.-Nr. 1.2343) ~180

QRO 90 – 0.38 0.3 0.8 2.6 2.3 0.9 – Annealed SUPREME ~180

FORMVAR – 0.35 0.2 0.5 5.0 2.3 0.6 – Annealed< 229

DIEVAR – 0.35 0.2 0.5 5.0 2.3 0.6 – Annealed~160

UNIMAX – 0.50 0.2 0.5 5.0 2.3 0.5 – Annealed<185

ALVAR 14 (W.-Nr. 1.2714) 0.55 0.3 0.7 1.1 0.5 0.1 1.7 Annealed≤250

IMPAX SUPREME P20 0.37 0.3 1.4 2.0 0.2 – 1.0 Prehardened(W.-Nr. 1.2738) ~310

UDDEHOLMTOOL STEEL

CHEMICAL COMPOSITION



STEEL AND HARDNESS SELECTIONFOR DIFFERENT EXTRUSION APPLICATIONS

TOOLING EXTRUDED MATERIAL

COMPONENT ALUMINIUM/MAGNESIUM COPPER ALLOYS STEEL

SUPPORT TOOLS IMPAX SUPREME IMPAX SUPREME IMPAX SUPREME(at lower temp.) ~310 HB ~310 HB ~310 HB

WEDGE BLOCK IMPAX SUPREME IMPAX SUPREME IMPAX SUPREME~310 HB ~310 HB ~310 HBALVAR 14 ALVAR 14 ALVAR 14300–400 HB 300–400 HB 300–400 HB

BOLSTER ALVAR 14 ALVAR 14 ALVAR 14~45 HRC ~45 HRC ~45 HRC

DIE RING FORMVARORVAR 2 MICRODIZED QRO 90 SUPREME QRO 90 SUPREME40–44 HRC 40–44 HRC 40–44 HRC

DIE FORMVARVIDAR 1 QRO 90 SUPREME QRO 90 SUPREMEORVAR 2 MICRODIZED 45–49 HRC 44–46 HRCQRO 90 SUPREME45–50 HRCDIEVAR46–52 HRCUNIMAX52–58 HRC

MANTLE IMPAX SUPREME IMPAX SUPREME IMPAX SUPREMEINTERMEDIATE ~310 HB ~310 HB ~310 HBLINER ORVAR 2 MICRODIZED ORVAR 2 MICRODIZED ORVAR 2 MICRODIZED

37–43 HRC 37–43 HRC 37–43 HRCVIDAR 137–43 HRC

LINER ORVAR 2 MICRODIZED QRO 90 SUPREME ORVAR 2 MICRODIZEDQRO 90 SUPREME 44–48 HRC 44–48 HRCVIDAR 144–48 HRCDIEVAR44–50 HRC

DUMMY BLOCK QRO 90 SUPREME QRO 90 SUPREME QRO 90 SUPREME44–48 HRC 44–48 HRC 44–48 HRCDIEVAR46–52 HRCORVAR 2 MICRODIZED46–50 HRC


TOOLING EXTRUDED MATERIAL

COMPONENT ALUMINIUM/MAGNESIUM COPPER ALLOYS STEEL

FASTENERSFOR FIXED IMPAX SUPREMEDUMMY BLOCK ~310 HB

STEM ORVAR 2 MICRODIZED ORVAR 2 MICRODIZED ORVAR 2 MICRODIZED46–50 HRC 46–50 HRC 46–50 HRC

MANDREL ORVAR 2 MICRODIZED QRO 90 SUPREME QRO 90 SUPREME46–50 HRC 45–49 HRC 45–49 HRCQRO 90 SUPREME DIEVAR46–49 HRC 46–52 HRC

LINERINTERMEDIATELINER MANTLE DIE

STEM DUMMY BLOCK(female, male, bolt)



NETWORK OF EXCELLENCEUddeholm is present on every continent. This ensures you

high-quality Swedish tool steel and local support wherever

you are. We secure our position as the world’s leading

supplier of tooling materials.


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Uddeholm is the world’s leading supplier of tooling materials.

This is a position we have reached by improving our customers’

everyday business. Long tradition combined with research and

product develop-ment equips Uddeholm to solve any tooling

problem that may arise. It is a challenging process, but the goal is

clear – to be your number one partner and tool steel provider.

Our presence on every continent guarantees you the same high

quality wherever you are. We act worldwide. For us it is all a

matter of trust – in long-term partnerships as well as in developing

new products.

For more information, please visit www.uddeholm.com

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UDDEHOLM TOOL STEELS FOR EXTRUSION TOOLING · even possibilities to assist in tool maintenance ... press parts. The requisite ... extrusion dies and extrusion tooling components