Transcription
UDDEHOLMPOCKET BOOKThe Uddeholm range of tooling materials
CONTENTSUDDEHOLM STEEL GRADES– Composition .– International standards .– Heat treatment .– Hardness after hardening and tempering.2–34–56–78–9STEEL FOR COLD WORK TOOLING . 10–16STEEL FOR INDUSTRIAL KNIVES . 17–19STEEL FOR DIE CASTING DIES . 20–23STEEL FOR EXTRUSION DIES . 24–27STEEL FOR FORGING DIES . 28–31MATERIALS FOR PLASTIC MOULDS . 32–39PRINCIPLES OF HARDENING .41POWDER METALLURGY TOOL STEEL . 42–43UDDEHOLM COMPONENT BUSINESS . 44–45PRE-MACHINED TOOL STEEL . 46–47MACHINING SERVICE .48HINTS ON– improved tool performance.49– basic tool design .50– tool heat treatment.51– repair welding . 51–52– grinding tool steel.52– EDM .53– polishing mould steel . 54–55– photo-etching .56HARDNESS CONVERSION TABLE .57CONVERSION FACTORS AND FORMULAE . 58–59SI-UNITS OF MEASUREMENT . 61–66ISO-TOLERANCES .67CONVERSION TABLE (temperature scale) . 68–69WEIGHT TABLES . 70–74DESIGNATIONS .75PRINTED MATERIAL.76
Uddeholm Pocket Book presents, in aconcise form, the Uddeholm range ofhigh quality tool steel developed tomeet specific needs and applications.The information in this pocket book is basedon our present state of knowledge and isintended to provide general notes on ourproducts and their uses. It should not therefore be construed as a warranty of specificproperties of the products described or awarranty for fitness for a particular purpose.All information concerning the wide range ofUddeholm tool materials can’t be given in thisbooklet. More detailed information and adviceis readily available from your nearest Uddeholm office or visit www.uddeholm.com1
UDDEHOLM STEEL GRADES — CompositionUddeholmGradeALVAR 14AM ur codeCSiTypical analysisMn CrMo 2.01.49.2YellowOlive green/Dark ck/GreyDIEVARYellow/GreyELMAXSUPERCLEAN1) wgreenHOLDAXYellow/BlueIDUNBrown/Dark greenIMPAXSUPREMEYellow/Green3)MIRRAX ESRMIRRAX 40Orange/GreenNIMAX ESRBlueNIMAXLight blue/Dark blueORVARSUPREMEOrangeORVARSUPERIORBlue/GreyORVAR 2 M4)Orange/VioletPOLMAXGreen/BlackQRO 90SUPREMEOrange/Brown5)RAMAX .60.90.20.2 N N0.1 N
UddeholmGradeColour codeCSiTypical analysisMn Cr Mo 81.013.6SVERKER 3Red2.05SVERKER 21Yellow/White1.55UHB 11White0.50UNIMAXBrown/Grey0.50VANADIS 4EXTRA7)SUPERCLEAN1)1.40VANADIS 8Green/SUPERCLEAN1)Light violet2.3VANAX1)SUPERCLEAN Grey/Dark blue 0.36VANCRONSUPERCLEAN1) Green/Dark blue 1.30VIDAR8)SUPERIOR0.36VIDAR 1Orange/Light .30.50.50.40.30.31.00.4VIDAR 1 ESR1.00.4ROYALLOYSLEIPNERSR 1855STAVAX ESRBlue/BrownRed/BlueBlack/OrangeOrange/Dark blueVANADIS 23SUPERCLEAN1)VANADIS 30SUPERCLEAN1)VANADIS 0.4CCrMoWV3.10.38High speed steelVS N Cu 4.25.06.43.18.5Gold2.304.27.06.56.510.5Powder Metallurgy tool steelMinimum order quantity3)Black/Orange with a white line across4)M Microdized5)Black/Brown with a white line across6)Yellow/Blue with a black line across7)Green/White with a black line across.8)Red/Orange with a white line across.1)2)3
International standards comparison chartUddeholmGradeASSABALVAR 14ALVAR 14AM CORRAX AM 18 SUPREMEMIRRAX ESR MIRRAX ESRMIRRAX 40MIRRAX 40NIMAX ESR NIMAX ESRNIMAXNIMAXORVARSUPREME 8407 SUPREMEORVARSUPERIOR–ORVAR 2 M2)8407-2MPOLMAXPOLMAXQRO 90QRO 90SUPREMESUPREMERAMAX HH RAMAX HHRIGORXW-10ROYALLOYROYALLOYSLEIPNERASSAB 88SR 1855STAVAX ESR STAVAX ESR4AISI(USA)BS4659W.-Nr.SS(GB) (Germany) �––––––––SKS 3–––––––––––––420, mod.P20modified420, mod.420, mod.––H13improvedH13improvedH13420, 442242SKD 61BH13BH13–1.23441.2344(1.2083)224222422314SKD 61SKD 61SUS 420–(420F)A2–––420, )(1.2083)––2260––20922314––SKD 12–––SUS 420–
UddeholmGradeASSABAISI(USA)SVERKER 3SVERKER 21UHB –––UNIMAXUNIMAXVANADIS 4VANADIS 4EXTRAEXTRASUPERCLEAN1) SUPERCLEAN1)VANADIS 8VANADIS 8SUPERCLEAN1) SUPERCLEAN1)VANAXVANAXSUPERCLEAN1) SUPERCLEANVANCRONVANCRONSUPERCLEAN1) SUPERCLEAN1)VIDARVIDARSUPERIORSUPERIORVIDAR 1–VIDAR 1 ESRVIDAR 1 ESR231223101650/1672–(SKD 2)SKD 1)3)H11H11High speed steelVANADIS 23ASSAB 23SUPERCLEAN1) SUPERCLEAN1)M3:2VANADIS 30ASSAB 301)1)SUPERCLEAN SUPERCLEAN (M3:2 Co)VANADIS 60ASSAB 60SUPERCLEAN1) SUPERCLEAN1)BS4659 W.-Nr.SSJIS(GB) (Germany) (Sweden) (Japan)––1.2340(BH 11) �(SKD 6)SKD 6SKD 6–1.33952725––1.3294 CM3:2 Co2726––(1.3292)2727–Some equivalents are approximate only ( ).1)Powder Metallurgy tool steel.2)M Microdized3)W.-Nr. 1.2343 or AISI H11 premium modified.5
Basic heat treatment guide*UddeholmGradeALVAR 14AM XIDUNIMPAXSUPREMEMIRRAX ESRMIRRAX 40NIMAX ESRNIMAXORVARSUPREMEORVARSUPERIORORVAR 2 M6)POLMAXQRO 90SUPREMERAMAX HHRIGORROYALLOYSLEIPNERSR 1855STAVAX ESR6HB1)Softannealingtemp. CAustenitizing(hardening)temperature CQuenchingmedium 250– 190 4202) 180 215 200 2502) 225 330 0–850as-del. �1050–1000–1030Oil, step, gas–Oil, step bath–Gas, step, oilGas, stepGas, step, oilGas, step, oilGas, step, oil–Gas, step, oil 280 2702) 170 229 3102) 420980770–850700–1050–1100flame hard. 850–1000–1030as-del. cond.–Gas, step, saltOil–Gas, step, oil–l– 3102) 250 3802) 3802) 3802)700740–as-del. cond.1000–1025as-del. cond.as-del. cond.as-del. cond.–Gas, step––– 1808501020–1050Gas, step, oil 180 180 1908508508901020–10501020–10501000–1050Gas, step, oilGas, step, oilStep, salt bath, gas 180 3402) 215 3102) 235 210 190820740850–8508108901020–1050as-del. cond.925–960as-del. cond.950–1080850–8801010–1050Gas, step, oil–Gas, step–Gas, stepOil, step, gasStep, salt bath, gas
UddeholmGradeSVERKER 3SVERKER 21UHB 11UNIMAXVANADIS 4EXTRASUPERCLEAN3)VANADIS IDARSUPERIORVIDAR 1VIDAR 1 ESRHigh speed steelVANADIS 23SUPERCLEAN3)VANADIS 30SUPERCLEAN3)VANADIS 60SUPERCLEAN3)HB1)Softannealingtemp. CAustenitizing(hardening)temperature CQuenchingmedium 240 210 200 185850850700850920–1000990–1080as-del. cond.1000–1025Gas, stepGas, step–Gas, step 230900940–1180Gas, step 2709001020–1180260980**1080Gas, stepGas, step, oil deep cooling 300900950–1150Gas, step 180 180 180850850850980–1000990–1010990–1010Gas, step, oilGas, step, oilGas, step, oil 2608751050–1180Gas, step 3008751000–1180Gas, step 3208751000–1180Gas, step* Choice of quenching media depends on the steel grade, the tool’s complexity and size.Further heat treatment recommendations is given in the product information brochureavailable for each steel grade.Stress relieving: after rough machining the tool should be heated through to 650 C.Holding time: 2h. Cool slowly to 500 C, then freely in air. (Exception: Uddeholm ImpaxSupreme, Uddeholm Holdax, Uddeholm Mirrax 40, Uddeholm Ramax HH and UddeholmFermo use max 550 C as stress relieving temperature. For Uddeholm Nimax use 450 C.)** In protected atmosphereNormal delivery hardness.Pre-hardened3)Powder Metallurgy tool steel.4)Solution treated. Higher hardness is obtained by ageing.5)Solution treatment 850 C 30 minutes.6)M Microdized1)2)7
Approx. hardness after hardening and temperingAustenitizingtemperature C200250500525550600ALVAR 14AM IDUNIMPAXSUPREMEMIRRAX ESRMIRRAX 40NIMAX ESR4)NIMAX4)ORVARSUPREMEORVARSUPERIORORVAR 2MICRODIZEDPOLMAXQRO 90SUPREMERAMAX �–3 x 525 C***62UddeholmGrade8HRC at tempering temperature C, 2 x 2 h3 x 525 C***603 x 540 C593 x 560 C5651*–––56*55*––3 x 540 C6051*505)––5346––3 x 560 C58
Austenitizingtemperature 1*55*55*VANADIS 4EXTRASUPERCLEAN3)VANADIS 8SUPERCLEAN3)10207)11808)10207)11808)3 x 525 C***61646164VANAXSUPERCLEAN3)1080 CUddeholmGradeSR 1855STAVAX ESRSVERKER 3SVERKER 21UHB 11UNIMAXVIDARSUPERIORVIDAR 1VIDAR 1 ESRVANCRONSUPERCLEAN3)High speed steelVANADIS 23SUPERCLEAN3)VANADIS 30SUPERCLEAN3)VANADIS 60SUPERCLEAN3)950–1150HRC at tempering temperature C, 2 x 2 h60–52548–5357–57***–––3 x 540 52524546463 x 560 C59635963–––3 x 540 C57–653 x 560 –69* This tempering temp. should be avoided due to the risk of temper brittleness.** For Uddeholm Stavax ESR, Uddeholm Mirrax ESR, Uddeholm Polmax and Uddeholm ElmaxSuperClean corrosion resistance is reduced.*** The lowest tempering temperature when high temperature tempering is 525 C.1)Quench in oil2)Solution treatment. Ageing: 51 HRC after 525 C/4h, 44 HRC after 575 C/4h, 41 HRC after 600 C/4h.3)Powder Metallurgy tool steel4)The delivery hardness of Uddeholm Nimax ESR and Nimax can not be increased. Temperingshall be avoided as toughness will be reduced.5)At 650 C 2 x 2h: 42 HRC6)Uddeholm Balder is delivered pre-hardened, tempered at 590 C (1090 F) /2 x 2h7)For better toughness98)For better wear resistance
STEEL FOR COLD WORK TOOLINGBlanking, piercing, cropping, bending, formingUddeholmgradeDescription/ApplicationsARNEA versatile tool steel for low production volume die setsfor blanking, forming and deburring and for forming rolls. Itis also suitable for gauges, bushes and engineering partsexposed to high stresses.CALDIEA modern matrix tool steel for cold work applicationswith high demands on chipping / cracking resistance andcompressive strength. Uddeholm Caldie is a robust toolsteel and is suitable for medium production volume toolingfor blanking and forming difficult production materials suchas advanced high strength steel.CALMAXA very versatile steel with adequate wear resistance andvery high toughness. It is very suitable for low to mediumproduction volume tooling for blanking thick productionmaterials or in general when the tooling is exposed to highstresses.RIGORA steel with a good combination of toughness, wearresistance and dimensional stability in hardening. It is ageneral cold work steel for medium production volumetooling.SLEIPNERA versatile steel with a very broad properties profileranging from good wear resistance, compressive strengthand good chipping / cracking resistance to good hardenability and machinability. This means that UddeholmSleipner is a modern general purpose steel for mediumproduction volume tooling.SVERKER 3A steel similar to Uddeholm Sverker 21 but with more andlarger carbides. It has an excellent abrasive wear resistanceand this means that it is suitable for applications like brickpressing and transformer plate blanking.SVERKER 21A 12% chromium steel suitable for medium productionvolume tooling where the production materials causeabrasive wear and the risk of chipping is not so high.10Cont.
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UNIMAXA problem solver for applications where the demandson chipping / cracking resistance are very high. UddeholmUnimax is a matrix steel with a unique combination ofchipping / cracking resistance and wear resistance.VANADIS 4A cold work tool steel produced by the powder metallurgyEXTRAprocess. It is characterized by a superior combination ofSUPERCLEAN wear and chipping resistance and is particularly suitable forhigh volume production tooling for production materialssuch as annealed austenitic stainless steel, mild carbonsteel, copper and aluminium.VANADIS 8Uddeholm Vanadis 8 SuperClean is a PM (Powder MetallurSUPERCLEAN gical) tool steel characterized by extremely high wearresistance (abrasive wear profile), high compressivestrength, high surface hardness after hardening, very goodthrough hardening properties, good toughness and verygood stability in hardening. These characteristics combineto give a steel suitable for the manufacture of very long runtooling where abrasive wear is dominant, e.g. blanking andforming of abrasive material, blanking of electrical steelsheet, blanking of gaskets, paper and foil slitting, granulatorknives, extruder screws, etc.VANADIS 23 A high speed steel produced by the powder metallurgySUPERCLEAN process and is characterized by high wear resistancecoupled with high chipping resistance and high compressivestrength. It is suitable for high volume production toolingfor hard to medium hard production materials. It also has agood hot hardness and god temper back resistance, makingit a suitable grade for high speed blanking and for cuttingtools.VANCRONA nitrogen alloyed PM steel for applications where galling isSUPERCLEAN the main failure mechanism. Its very low friction coefficientand surface topography after polishing mean that it is analternative to tooling where coatings and cemented carbideused to be the only solution.12
UHB 11A bolster steel with medium high carbon content suitablefor top and bottom plates and higher strength supportparts.FORMAXA bolster steel with low carbon content suitable for largetop and bottom plates and medium strength supports.HOLDAXA pre-hardened bolster steel for support plates andholders.Steel for special ARMOA pre-hardened steel particularly suitable for car bodydies. It can be flame / induction hardened or throughhardened and has a much better weldability than othercold work tool steel. It is suitable for low productionvolume tooling in general and for prototype tooling.SR 1855A low alloyed tool steel very suitable for profile rolls.VANCRONSUPERCLEANA nitrogen alloyed PM steel which often need not becoated to avoid galling, sticking and adhesive wear.VANADIS 30SUPERCLEANA high hardness high speed PM steel with improvedcompressive strength and hot hardness. Mainly used forcutting tools.VANADIS 60SUPERCLEANA very high hardness high speed PM steel with very highcompressive strength, good hot hardness and very highwear resistance. Mainly used for cutting tools.A comprehensive product brochure is available for each steel grade and containsinformation on application areas, heat treatment, machining, grinding etc.13
Property comparison guide for cold work yDimensionstabilityARNECALMAXCALDIE (ESR)RIGORSLEIPNERSVERKER 21SVERKER 3UNIMAXVANADIS 4EXTRAVANADIS 8VANADIS 23VANCRONSelection chartPartUddeholm gradePunches, diesARNE, CALDIE, CALMAX, RIGOR,SVERKER 3, SVERKER 21, SLEIPNER,UNIMAX, VANADIS 4 EXTRA, VANADIS 8,VANCRONHardnessHRC54–64Top- andbottom platesFORMAX, UHB 11, HOLDAXAs suppliedPunchbacking plateARNE58–60The tool steel choice and hardness level will depend on the production material type, itsthickness and hardness and the intended production volume.14
Other “cold work” applicationsApplicationUddeholm gradeCold rollsCALDIE, ROP 20, SLEIPNER, SVERKER 21,VANADIS 4 EXTRA, VANADIS 8,VANADIS 23, VANCRONForming rollsSVERKER 21, CALDIE, CALMAX, SLEIPNER,VANADIS 4 EXTRA, VANADIS 8,VANCRONPressing of ceramicsSVERKER 3, SVERKER 21Powder metal compactionCALDIE, UNIMAX, VANADIS 4 EXTRA,VANCRON15
Steel selectionWhen selecting a tool steel for any cold work operation it is importantto identify which failure mechanism(s) is/are limiting the tool life: wear (abrasive/adhesive) chipping/cracking plastic deformationThe proper tool steel for the situation can be selected by means ofthe following comparison chart, which gives the relative resistance to theabove failure mechanisms for the Uddeholm cold work tool steel.Property comparison guide for cold work edeformationWear resistanceAbrasiveAdhesiveFatigue gcrackingARNECALMAXCALDIE (ESR)RIGORSLEIPNERSVERKER 21SVERKER 3UNIMAXVANADIS 4EXTRAVANADIS 8VANADIS 23VANCRONA rule of thumb is to select a steel with higher performance to avoidpremature failures with such consequences as late deliveries and extracosts.16
STEEL FOR INDUSTRIAL KNIVESClose attention is paid tostraightness, squareness, toleranceand decarburization levels onUddeholm tool steel intended forthe large-scale production of knivesand ERCr-Mo-alloyed steel developed by Uddeholm especially forchipper-knives and other knives exposed for high stresses.Combine toughness with wear resistance very well.SVERKER 3SVERKER 21Steel with high C-Cr-content and an excellent wearresistance. Suitable for wood milling cutters.VANADIS 4Cold work tool steel produced by the powder metallurgyEXTRAprocess. Superior combination of adhesive wear resistanceSUPERCLEAN and toughness.VANADIS 8Cold work tool steel produced by the powder metallurgySUPERCLEAN process. Very high abrasive wear resistance and fairlygood toughness. Tool steel very suitable for severeabrasive conditions and long runs.VANADIS 23 High speed steel produced by the powder metallurgySUPERCLEAN process. Good combination of wear resistance, chippingresistance, hot hardness and compressive strength. Suitablefor production materials which cause mixed or abrasivewear.RIGORA tool steel with a good combination of toughness andgeneral wear resistance.CALDIEA robust tool steel with a good combination of highcompressive strength and wear resistance and highchipping resistance.Cont.17
CALMAXTool steel with a properties profile devoted to safeproduction, i.e. high chipping and cracking resistanceand a fairly good wear resistance.UNIMAXA really robust tool steel and the best choice for difficultblanking applications with demands on high hardness(max. 58 HRC) and very high chipping resistance.SLEIPNERA tool steel with properties well suited for knife applications. Good wear resistance, good resistance to chippingand high compressive strength give a knife with a goodedge retention.ARNELow alloyed universal tool steel for short runs. Excellentmachinability.Property comparison chart forUddeholm tool steel for industrial IPNERSVERKER 3SVERKER 21UNIMAXVANADIS 4EXTRAVANADIS 8VANADIS imensionalstability athardening
Selection chartPartUddeholm gradeHRCChipper knivesCHIPPER56–58Flaker knivesCHIPPER56–58Reducer knivesCHIPPER56–58Planer knivesSVERKER 21, SLEIPNER58–60Shear knives, hotCALDIE, ORVAR 2 MICRODIZED,UNIMAX52–54thin stockSVERKER 2158–60thick stockCALDIE, RIGOR,VANADIS 4 EXTRACALMAX, SLEIPNER, UNIMAX56–5854–58Circular slitting knivesSVERKER 21, RIGOR, SLEIPNER,VANADIS 4 EXTRA, VANADIS 8,UNIMAX58–6256–6454–58Plastic granulator knivesRIGOR, SVERKER 21, SLEIPNER,VANADIS 4 EXTRA, ELMAXCALDIE, VANADIS 8UNIMAX58–6058–6454–58Tobacco knivesARNE58–60Fragmentation knivesCALMAX, RIGOR, SVERKER 21,SLEIPNER, VANADIS 4 EXTRA,VANADIS 8, UNIMAX55–64Paper knivesSVERKER 21, VANADIS 4 EXTRA,VANADIS 858–64CORRAX, STAVAX ESR, RAMAX,ELMAX37–61VANADIS 4 EXTRA, VANADIS 856–64Custom knivesELMAX, VANADIS 4 EXTRA56–62Rotary die cutting knivesSVERKER 21, SLEIPNER,VANADIS 4 EXTRA, VANADIS 858–64coldFood processing knivesstainlessnon stainless19
STEEL FOR DIE CASTING DIESUddeholmgradeDescription/ApplicationsDIEVARA premium Cr-Mo-V alloyed hot work die steel with goodhigh temperature strength and excellent hardenability,toughness and ductility. Suitable for medium to largedies in aluminium die casting. It meets the requirements ofNADCA #207-2011.UNIMAXA premium Cr-Mo-V alloyed steel with a good toughnessand ductility up to a hardness of 58 HRC.ORVARSUPREMEORVARSUPERIORPremium Cr-Mo-V-alloyed hot work die steel (H13) withgood resistance to thermal fatigue. The steel are produced by a special melting and refining technique and meetthe requirements of NADCA #207–2011.VIDARSUPERIORA premium Cr-Mo-V alloyed hot work die steel (H11modified) with good resistance to cracking and meets therequirements of NADCA #207–2011.QRO 90SUPREMEA premium hot work die steel with high hot yield strengthand good temper resistance. Especially suited for diecasting of copper, brass and for small inserts and cores inaluminium die casting.QRO 90 HTA pre-hardened Uddeholm QRO 90 Supreme materialsupplied at 37–41 HRC and suitable for core pins.IMPAXSUPREMEA pre-hardened Ni-Cr-Mo-steel supplied at 310 HBsuitable for die casting of zinc, lead and tin. Also used asa holder material and prototype dies.HOLDAXA pre-hardened steel with very good machinabilitysupplied at 310 HB for clamping and holding plates.20
ILLUSTRATION, GRAPHICS SWEDEN21
Qualitative comparison of resistance to different die ionIndentationDIEVARUNIMAXORVAR SUPREMEORVAR SUPERIORVIDAR SUPERIORQRO 90 SUPREMEThe longer the bar, the better.Further information is given in the brochure “Uddeholm tool steel for die casting” and inthe product information brochure available for each steel grade.Selection chart —Die castingDie partTin/Lead/ZincAluminium/MagnesiumCopper, BrassClampingplatesHolder platesHOLDAX/IMPAX SUP.pre-hardened 310 HBHOLDAX/IMPAX SUP.pre-hardened 310 HBHOLDAX/IMPAX SUP.pre-hardened 310 HBDie InsertsIMPAX SUP. 310 HBORVAR SUP. /SUPERIOR46–52 HRCUNIMAX52–56 HRCORVAR SUP. /SUPERIOR42–48 HRCVIDAR SUPERIOR42–48 HRCDIEVAR44–50 HRCUNIMAX*QRO 90 SUP.40–46 HRCORVAR SUP. /SUPERIOR40–46 HRCFixed insertsCoresORVAR SUP. /SUPERIOR46–52 HRCDIEVAR46–50 HRCORVAR SUP. /SUPERIORVIDAR SUPERIOR44–48 HRCQRO 90 SUP.42–48 HRCQRO 90 SUP.40–46 HRCSUP. Supreme* For small Mg die inserts where a good erosion resistance is needed22
Aluminium/MagnesiumCopper, BrassORVAR SUP.46–52 HRCQRO 90 SUP.*44–48 HRCQRO 90 HT*QRO 90 SUP.42–46 HRCQRO 90 HTSprue partsORVAR SUP.48–52 HRCORVAR SUP. /SUPERIOR46–48 HRCQRO 90 SUP.44–46 HRCQRO 90 SUP.42–46 HRCNozzleORVAR SUP.35–44 HRCSTAVAX ESR40–44 HRCORVAR SUP. /SUPERIOR42–48 HRCQRO 90 SUP.42–46 HRCQRO 90 SUP.40–44 HRCORVAR SUP. /SUPERIOR42–48 HRCEjector pinsQRO 90 SUP. /ORVAR SUP.46–50 HRC(nitrided)QRO 90 SUP. /ORVAR SUP.46–50 HRC(nitrided)QRO 90 SUP. /ORVAR SUP.46–50 HRC(nitrided)PlungerShot sleeveORVAR SUP.42–46 HRC(nitrided)ORVAR SUP. /SUPERIORQRO 90 SUP.42–48 HRC(nitrided)QRO 90 SUP. /ORVAR SUP. /SUPERIOR42–46 HRC(nitrided)Die partTin/Lead/ZincCore pinsSUP. Supreme * Surface treatment is recommended.23
STEEL FOR EXTRUSION DIESUddeholmgradeDescription/ApplicationsORVAR 2A Cr-Mo-V-alloyed hot work steel (H13) with good highMICRODIZED temperature strength and good resistance to abrasion.The steel is widely used for extrusion tooling.VIDAR 1A Cr-Mo-V-alloyed hot work steel (H11) with a goodcombination of high temperature strength, good toughness and good resistance to abrasion.QRO 90SUPREMEA premium hot work steel with very good strength andhot hardness at elevated temperatures. The steel can berecommended for all types of extrusion tooling subjectedto maximum working temperatures.FORMVARA high performance hot work tool steel with very goodresistance to hot wear and plastic deformation.DIEVARA premium Cr-Mo-V alloyed hot work steel with goodhigh temperature strength and excellent toughness andductility. Recommended in dies and extrusion componentswhere the demands on toughness and ductility are thehighest.UNIMAXA premium Cr-Mo-V alloyed steel with a good toughnessand ductility up to a hardness of 58 HRC.ALVAR 14Cr-Ni-Mo-alloyed hot work steel used for support partsfor extrusion tooling, e.g. backers and bolsters.IMPAXSUPREMEPre-hardened Ni-Cr-Mo-alloyed steel supplied at approx.310 HB and suitable for mantles.24
ILLUSTRATION, GRAPHICS SWEDEN25
Qualitative comparison of resistance to different tool failuresUddeholmgradeHot gORVAR 2 MVIDAR 1QRO 90 SUP.FORMVARDIEVARUNIMAXThe longer the bar, the better. M Microdized. SUP. Supreme.Further information is given in the brochure “Uddeholm tool steel for extrusion”.Selection chart—ExtrusionTool partAluminium,MagnesiumCopper alloysSteelSupport tools(at lower temp.)IMPAX SUP. 310 HBIMPAX SUP. 310 HBIMPAX SUP. 310 HBWedge blockIMPAX SUP. 310 HBALVAR 14300–400 HBIMPAX SUP. 310 HBALVAR 14300–400 HBIMPAX SUP. 310 HBALVAR 14300–400 HBBolsterALVAR 1445 HRCALVAR 1445 HRCALVAR 1445 HRCDie ringFORMVARORVAR 2 M40–44 HRCQRO 90 SUP.40–44 HRCQRO 90 SUP.40–44 HRCQRO 90 SUP.45–49 HRCQRO 90 SUP.44–46 HRCDieFORMVARVIDAR 1/ORVAR 2M/QRO 90 SUP.45–50 HRCDIEVAR46–52 HRCUNIMAX52–58 HRCSUP. Supreme, M Microdized26
Tool partAluminium,MagnesiumCopper alloysSteelIMPAX SUP. 310 HBORVAR 2 M37–43 HRCVIDAR 137–43ORVAR 2 M44–48 HRCQRO 90 SUP.44–48 HRCVIDAR 144–48 HRCDIEVAR44–50 HRCIMPAX SUP. 310 HBORVAR 2 M37–43 HRCIMPAX SUP. 310 HBORVAR 2 M37–43 HRCQRO 90 SUP.44–48 HRCORVAR 2 M44–48 HRCDummy blockQRO 90 SUP.44–48 HRCDIEVAR46–52 HRCORVAR 2 M46–50QRO 90 SUP.44–48 HRCQRO 90 SUP.44–48 HRCStemORVAR 2 M46–50 HRCORVAR 2M46–50 HRCORVAR 2M46–50 HRCMandrelORVAR 2 M46–50 HRCQRO 90 SUP.46–49 HRCQRO 90 SUP.45–49 HRCDIEVAR46–52 HRCQRO 90 SUP45–49 HRCMantleIntermediatelinerLinerSUP. Supreme, M Microdized27
STEEL FOR FORGING DIESUddeholmgradeDescription/ApplicationsDIEVARA premium Cr-Mo-V alloyed hot work steel with goodhigh temperature strength and excellent hardenability,toughness and ductility. Recommended in dies where thedemands on toughness and ductility are the highest. Itmeets the requirements of NADCA #207-2011.UNIMAXA premium Cr-Mo-V alloyed steel with good toughnessand ductility up to a hardness of 58 HRC.ORVAR 2MICRODIZEDCr-Mo-V-alloyed hot work die steel (H13) with goodhigh temperature strength and hot wear resistance.ORVARSUPREME /ORVARSUPERIORPremium Cr-Mo-V-alloyed hot work die steel (H13) withgood resistance to thermal fatigue. The steel are produced by a special melting and refining technique. Theymeet the requirements of NADCA #207-2011.VIDARSUPERIORA Cr-Mo-V-alloyed hot work die steel (H11) modifiedwith good resistance to cracking. It meets the requirements of NADCA #207-2011.QRO 90SUPREMEA premium hot work die steel with very good strengthand hot hardness at elevated temperatures. Recommended for inserts and stamping of copper alloys.FORMVARUddeholm Formvar is a solid upgrade choice fromH11/H13 forging dies. With good tempering backresistance and hot yield strength.ALVAR 14Cr-Ni-Mo-alloyed hot work steel. Normally delivered inpre-hardened condition for solid die blocks.VANADIS 8* /VANADIS 4EXTRA* /VANADIS 30*PM-produced steels. Recommended for forging applications where very good wear resistance is needed.* Uddeholm PM SuperClean tool steels28
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Qualitative comparisonof resistance to different tool failuresUddeholmgradeHot gDIEVARUNIMAXORVAR 2 MORVAR SUPREMEORVAR SUPERIORVIDAR SUPERIORQRO 90 SUPREMEFORMVARALVAR 14The longer the bar, the better. Further information is given in th
ddeholm Pocket Book presents, in a concise form, the Uddeholm range of high quality tool steel developed to meet specific needs and applications. The information in this pocket book is based on our present state of knowledge and is intended to provide general n
