High Speed Tool Steels - Hitachi Metals

1 High Speed tool Steels2<A ttenti on> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without High Speed tool SteelsChemical compositions of YSS High Speed tool SteelsGradeCCrWMoVCoYXM1 YXM4 YXM27 YXM42 YXM60 XVC5 YHX2 YXR3 YXR33 YXR7 HAP10 HAP40 HAP50 HAP72 HAP5 RSKH51 SKH55 SKH59 SKH57 SKH2 SKH40 Conventional High Speed tool SteelsP/M High Speed tool SteelsMolybdenumHSSV anadiumHSST ungstenHSSM atrixHSSM atrixHSSM atrixHSSM atrixHSSYSS High Speed tool Steels are used not only for cutting tools but also various forming tools which require higher wear resistance and toughness. Along with conventional type Steels , there are some grades made by powder metallurgy process (HAP series) that has superb wear resistance and toughness because of higher alloy content and uniform fine (Kaigan) Works(mass%) JIS or lessHSS: High Speed tool steel 3<A ttenti on> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product.

2 This catalog and its contents are subject to change without High Speed tool SteelsFeatures of YSS High Speed tool SteelsGradeYXM1 YXM4 YXM27 YXM42 YXM60 XVC5 YHX2 YXR3 YXR33 YXR7 HAP10 HAP40 HAP50 HAP72 HAP5 RConventional High Speed tool SteelsP/M High Speed tool SteelsOutstanding Features; High toughness High wear resistance Stabilized heat treatment property Stable performance due to uniform and fine carbide distribution Good mechanical properties coming from fine and uniform grain size High purity with least inclusions and gasesStandard Molybdenum high Speed steel with superior toughnessStandard Cobalt alloyed Molybdenum high Speed steel with superior heat resistanceHigh Vanadium high Speed steel with good wear resistance and grindabilitySuper-hard high Speed steel suitable for cutting for hard materials High-performance high Speed steel with superior durability, toughness and grindabilityHigh-performance Cobalt alloyed Vanadium high Speed steel with wear/heat resistanceStandard Tungsten high Speed steelMatrix high Speed steel for forging tools with superior toughness Matrix high Speed steel for forging tools with most superior toughnessMatrix high Speed steel for forging tools with superior strength/toughnessSuperior toughness effective to avoid chippingMost standard grade with good balance of hardness, toughness and wear resistanceHigher hardness, good heat and wear resistance Good heat wear resistance and highest obtainable hardness of 70 HRCT oughest P/M high Speed steelFeaturesMolybdenumHSSV anadiumHSST ungstenHSSM atrixHSS4<A ttenti on> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product.

3 This catalog and its contents are subject to change without High Speed tool SteelsCharacteristics of YSS High Speed tool SteelsToughnessWear resistance, Strength XVC5 CRDYXM4 YXM1 YCS3 SLDHAP10 HAP5 RHAP40 YXR7 YXR3HI-PM MAGICHMD5 YXR33 ACD37 HAP72 SGTP/M high Speed steelStrengthStrengthWear resistanceToughnessMatrix high Speed steelExcellent machinabilityToughnessFlame hardend steelAir hardened steel40 HRC pre-hardened steelFor high performanceserviceSimplified smallproductionARK1 SLD-MAGIC : stnadard steel (JIS equivalent) : original steelCharacteristics of steelsProperties Comparison TableGradeStrength at elevatedtemperatureQuench and tempered hardnessWear resistanceMachinabilityToughnessExcellen t A Ordinary C Poor E YXM1 YXM4 YXM27 YXM42 YXM60 XVC5 YHX2 YXR3 YXR33 YXR7 HAP10 HAP40 HAP50 HAP72 HAP5 RAABAAAADCDDBBBDCCCBBCCDDCCBBADCBBAAACDD CAAAACCCCBBDBAACBCBDBBBBCCDCAABBBBDA5<A ttenti on> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product.

4 This catalog and its contents are subject to change without High Speed tool SteelsCharacteristics of YSS High Speed tool Steels Charpy impact value Continuous Cutting test by turning toolWear resistance (Ogoshi method) Wear resistance (Abrasive Wear) Grindability Bending strengthHAP10 HAP40 HAP50 HAP72 SKH51 SKH5750100150 Index of grindability (SKH51=100)03006009001,2001,5001,800 tool life (s)Cutting conditionWork : SKT4(357HB)Machine : Automatic latheTool tip shape : Speed : 25m/minDepth of cut : 1mmFeed : cuttingGradeYXM1 YXM4 XVC5 YXR3 YXR33 HAP10 HAP72 SKD116565676158657059 Wear(Volume loss; YXM1=1) conditionTest conditionSlideTest picece( 6)SandpaperRotateGradeGradeHardness HRC Hardness HRC Specific wear mm3/ mm2 mm x10-7 (J/cm2)Hardness (HRC)02461015202510R Charpy Impact Value (kgf m/cm2)YXM27 Hardness (HRC)Bending Strength (kgf/mm2)6005004003002001005658606264666 87072100020003000400050006000(N/mm2)SGTC RDHAP5 RYXR7 YXR3 ARK1 SLDHAP10 YXM1 YXM4 HAP40 HAP72 XVC5V5V6V4cemented : Al2O3 500 Revolution : 980rpm Friction length : 1000mmLubricant : dry Load : 49N (5kgf) Co-friction material SCM415 Friction length 400mLoad 67N ( ) Friction Speed grinderWheel : PA80K74 Wheel Speed :1,820m/minInfeed : 5 m/PassTotal infeed : grindingYSMHAP5 RYXR3 YXR7 YXR33 ARK1 SLD8 SLDHAP10 YXM1 YXM4 HAP40 HAP72 XVC56<A ttenti on> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product.

5 This catalog and its contents are subject to change without High Speed tool SteelsCutting toolsXVC5 65-68 , HAP72 69-71 YXM1 63-66 YXM1 63-66 YXM1 63-66 YXM1 63-66 YXM1 63-66 , YXM4 64-67 YXM4, YXM1 64-66 YXM1, YXM4 63-65 YXM1 64-66 YXR7, YXM1 63-66 YXM1 62-65 YXM1 63-66 YXM1 62-65 YXM1, YXM4 64-66 YXM60 67-69 YXM60, YXM42 66-68 HAP50 66-68 , HAP72 68-70 YXM27 65-67 , HAP10 HAP40 65-67 , HAP72 68-70 YXM4, XVC5 65-67 HAP40, HAP50 66-68 XVC5 66-68 , HAP50 66-69 HAP72 69-71 YXM27 65-67 , HAP10 HAP40, HAP50 66-68 YXM60 66-68 , HAP10 HAP40, HAP50 66-68 YXM27 65-67 YXM42, YXM60 66-68 YXR3 58-61 YXM1, YHX2 62-65 YXM4, YXM60 65-67 YXM42, YXM60 65-67 HAP40 66-68 YXM60 67-69 , HAP72 69-71 YXM60 67-69 , HAP50 67-69 HAP40 65-67 YXM4 65-67 YXM27 65-67 , HAP10 65-67 YXM42 66-68 , HAP40 66-68 YXM42 66-68 YXM42 66-68 HAP40, HAP50 66-68 YXM27 65-67 , HAP40 65-67 YXM4 64-67 HAP40, HAP50 66-68 HAP10, HAP40 64-66 YXM4 65-67 YXM4, YXM27 65-67 YXM42 66-68 , HAP40 66-68 HAP50 66-68 YXM4 65-67 ApplicationRecommended GradeFor general useFor hard material cuttingFor high Speed heavy duty cuttingRecommended grade by application of YSS High Speed tool SteelsTool bitDrillTa pReamerMilling cutterEnd millBroachHobPinion cutterShaving cutterRack cutterChaserMetal sawHack sawMetal band sawWood cutter shows standard employed <A ttenti on> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product.

6 This catalog and its contents are subject to change without High Speed tool SteelsCold working toolsRecommended grade by application of YSS High Speed tool SteelsRequired hardness range shows standard employed general useRecommended GradeFor abrasion resistanceFor impact resistance HRC For mass production useCold workingdiesMale dieFemale dieMale dieFemale dieCold workingdiesThread rolling diesRollsDrawing diesCold hobbing diesOtherTriming diesThin material (under 3 mm)Thick material (3 mm or over)MachinecutleryShearingblades(Straig ht blades)Thin material plate (under 3mm)Medium material plate (3mm to 9mm)Heavy material plate (10 mm or over)Cold rolling mill rolls58 - 6255 - 6058 - 6258 - 6258 - 6258 - 6355 - 6058 - 6255 - 6058 - 6480HS Min55 - 6050 - 5557 - 6255 - 6055 - 6053 - 5848 - 5354 - 60 SLD, SLD-MAGIC, ARK1 SLD, SLD-MAGIC, ARK1 SLDSLD, SLD-MAGICSLD, SLD-MAGICSLD, SLD-MAGIC, ARK1 SLD, SLD-MAGICYSMSLD, SLD-MAGICSLD, SLD-MAGICSLD, SLD-MAGIC, ARK1 DAC, DMYXM1, CRDSLD, SLD-MAGICSLD, SLD-MAGIC, ARK1 SLD, SLD-MAGIC, ARK1 DMSLD, SLD-MAGIC, ARK1 HAP10, HAP40 SLD, SLD-MAGICHAP10, HAP40 SLD-MAGICXVC5 YXM1, HAP40 YXM1, HAP10 HAP40 SLD, SLD-MAGICYXR7, YXM1, SLD10 YXM1, HAP50, HAP40 YXM1, HAP40 XVC5 YXM1 YXM1, YXR7 YXM1, HAP40 YXM1, YXR7, HAP5 RARK1 YXM1, YXR7, HAP5 RARK1 YXM1 YXR7, YXR3, HAP10 YXR3, YXR7, HAP5 RYXM1, YXR7, YXR3 YXM1,YXR7, YXR3 YXR3, YXR7 YXR3 YXR33 Die forcold pressBlanking dieRotary shear, slittersBlanking dieBender swaging diesSheet useHeavy plate, high-tensile steelSheet useHeavy plate, high-tensile steel HMD5 (flame hardening type)

7 Cold headingdies8<A ttenti on> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without High Speed tool SteelsRemarks (1) Tools required for high strength at elevated temperature (2) Tools required for higher toughnessHardnessAnnealingAnnealed (HBW)Quenched and tempered(HRC)GradeYXM1 YXM4 YXM27 YXM42 YXM60 XVC5 YHX2 YXR3 YXR33 YXR7 HAP10 HAP40 HAP50 HAP72 HAP5R800-880800-880800-880820-880820-880 820-880820-880800-880800-880800-880820-8 80820-880820-880820-880820-880 Slow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow coolingSlow cooling255277255285285285248241241241269 277293352269 MaxMaxMaxMaxMaxMaxMaxMaxMaxMaxMaxMaxMaxM axMax63646466666462575662 MinMinMinMinMinMinMinMinMinMinConvention al High Speed tool SteelsP/M High Speed tool SteelsStandard heat treatment conditions of YSS High Speed tool SteelsTemperature C 1,080-1,140(1)1,150-1,170(2)1,130-1,150( 1)1,270-1,290(2)1,250-1,270(1)

8 1,230-1,250(2)1,210-1,230(1)1,190-1,210( 2)1,170-1,190(1)1,190-1,210(2)1,170-1,19 01,180-1,210(1)1,230-1,250(2)1,210-1,230 (1)1,220-1,240(2)1,200-1,220(1)1,160-1,1 80(2)1,130-1,150(1)1,170-1,190(2)1,050-1 ,170(1)1,180-1,210(2)1,120-1,190(1) 65-66(2) 58-65(1) 66-68(2) 64-66(1) 67-69(2) 66-6768-7058-62(1)1,200-1,220(2)1,180-1, 2001,180-1,2101,120-1,160550-570560-5805 50-580520-590560-590550-580560-580560-59 0550-600540-580550-580560-580560-580560- 580530-580 Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Oil(hot bath)Air coolingAir coolingAir coolingAir coolingAir coolingAir coolingAir coolingAir coolingAir coolingAir coolingAir coolingAir coolingAir coolingAir coolingAir coolingTemperingQuenching9<A ttenti on> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product.

9 This catalog and its contents are subject to change without High Speed tool SteelsStandard heat treatment conditions of YSS High Speed tool SteelsPreheating is (Ta 2) at 900 C for small thickness (50 mm max.) and simple shape tools, and wherever facilities are rst stage can be omitted for small tools. Holding time of austenitizingAs for simple gure tools, 1st stage preheating can be skipped and oil quenching can be applied instead of hot salt bath complex gure tools, 3rd stage preheat (1,050 C) applying is preferable.(Remarks)Preheating time 1st stage : 30 minutes for every 25 mm of the tool at 500-550 C 2nd stage : (Ta 2) at 850 C 3nd stage : (Ta 2) at 1,050 C Tools of ordinary shape30min/25mm30min/25mm500-550 C450-550 C850 CHolding time quenching 21st stage preheating2nd stage preheatingAustenitizing temperatureSlow cooling About 80 CTemperingAnnealingAll material is delivered as spheroidized annealed used after reforging, spheroidized annealing is to be done before relief annealing is to be done in order to remove stress occured by cold working such as cold drawing, cold rolling or cutting and temperature : 650-750 C(to aim higher temperature when softening is required)Holding time.

10 1h/25mm Holding time at austenitizing temperature (Ta)510203040506070809060 1290 9160 8240 8280 7350 7390 6440 bath (mm)(Remarks) Holding time in salt bath = dipping timeHeating furnaceTimeThickness Holding time (sec)Magni cation(Holding time/Thickness)Holding time at tempering temperature (Tt)26 - 25136 - 64265 - 84385 - 1244125 - 1745175 - 2496250 - 3497350 - 4998(Remarks) Thickness (mm)Tempering holding time (hour)Tempering is needed more than 2 times for grades containing no cobalt and needed more than 3 times for grades cobalt alloyed in order to make it tough timeTRefer tothe table10<A ttenti on> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without High Speed tool Steels Conventional High Speed tool SteelsStandard heat treatment conditions of YSS High Speed tool SteelsTempering temperature C Hardness HRC 500520540 560580 60062056586062646668701,220 C1,260 C1,160 C1,180 C1,200 C1,240 CYXM4500520540 560580 600620 Tempering temperature C 58606264666870 Hardness HRC 1,220 C1,180 C1,200 C1,240 C1,160 CYXM1 Tempering temperature C Hardness HRC 50052054056058060056586062646668701,210 C1,170 C1,190 CYXM27 Tempering temperature C Hardness HRC 500520540560580646566676869701,180 C1,200 C1,220 C1,160 CYXM42 Tempering temperature C Hardness HRC 500550600650444648505254565860621,080 C1,120 C1,140 CYXR33 Tempering temperature C Hardness HRC 500520540560580600586062646668701,140 C1,160 C1,180 C1,120 CYXR7 Tempering temperature C Hardness HRC 520540560580600620586062646668701,240 C1,220 C1,160 C1,200 C1,180 C1.