Cold Work Tool Steels - Hitachi Metals

4m ago
26 Views
0 Downloads
1.22 MB
12 Pages
Transcription

Cold Work Tool Steels

YSS Cold Work Tool SteelsTypes of YSS cold work tool steelsChemical composition(%)GradeColor JIS equivalent AISISLD-MAGICCold work tool steelsHigh speed tool steelsCSiOriginal steelSLDP/M High speed tool steelsDIN WNr.MnCrWMoVCoFree-cuttingelements addedHigh-performance cold work tool steelD2 ―0.90.3―SLD108% Cr 80.4―ARK1Original ―SGTSKS3O1 .4――――ACD37Original 3――HMD5Original 2――HI-PM MAGICOriginal steelS:0.0540HRC pre-hardened steelYXM1SKH51M2 5.09.5YXR7Matrix highspeed steelYXR3YXR33HAP5RP/M highspeed steelHAP10HAP40M3:2SKH40P/M highspeed steelHAP72Others1.3244Applications in cold work diesFor general use58-62SLD, SLD-MAGIC, ARK1HAP10, HAP40For general sheet use55-60HMD5SLD, SLD-MAGICARK1For general heavy plate use58-62SLD, SLD-MAGIC, ARK1HAP10, HAP40YXM1, YXR7, HAP5RFor general sheet use58-62SLDSLD-MAGICARK1For general heavy plate use58-62SLD, SLD-MAGICHAP40YXM1Male die58-63SLD, SLD-MAGICYXM1, HAP40, YXM4YXR7, YXR3, HAP10Female die55-60SLD, SLD-MAGIC, ARK1YXM1, HAP10YXR7, YXR3, HAP5RMale die58-62SLD, SLD-MAGICHAP40, YXM4YXM1, YXR7, YXR3Female die55-60YSMSLD, SLD-MAGICYXM1, YXR7, YXR358-64SLDYXR7, YXM1, SLD10 80HSSLD, SLD-MAGICYXM1, HAP40ApplicationCold foging diesCold press dieBlanking dies (small, progressive)Blanking diesBending and Swaging diesFoging diesHeading diesThread forming diesCold working rollsRecommended YSS steelStandardhardness(HRC)For mass production useFor abrasion resistance For impact resistanceYXM1, YXR7, HAP5R Attention 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 notice.2

YSS Cold Work Tool SteelsTypes of YSS cold work tool steelsGradeCold work tool steelsCharacteristicsMain ApplicationSLD-MAGICHigh-performance cold work tool steel attaining bothextended die life and easy die fabrication.Cold work dies for high-tensile steels, SUS, massproduction, and general use.SLDCold work die steel with high abrasion resistance for generaluse, excellent harden-ability and minimal quench stress.Cold work dies for general use, forming roll, shear blade.SLD10Extreamly high hardness with excellent toughness in diesteels, 62-64HRC.Rolling dies.ARK1Cold work die steel with high toughness and improvedmachinability.Dies for printed circuit board, die plates, stripper plates.SGTCold work die steel with superior machinability for general use;Special care is required for quenching large-size dies or wireelectric discharge machining.Dies for deep drawing, gauges.YCS3Carbon tool steel for small production to be quenched in oil.Improved SK105 grade for its hardenabillty.Press forming dies, jigs and tools, gauges.ACD37Vacuum quenched and air quenched steel. Improved SGT gradefor its hardenability and wire electric discharge machinability.Dies for deep drawing, gauges.HMD5Steel for flame hardening, resulting in high hardness andsmall strain even with air quenched; good weldability.Dies for deep drawing.P/M High speed tool steelsHigh speed tool steelsHI-PM MAGIC 40HRC pre-hardened steel.Press forming dies for small production, jigs and tools.YXM1High speed steel with high abrasion resistance andtoughness for general use.Cold forging dies, cold heading dies, slitter.YXM4High speed steel to prevent from abrasion, seizure anddeformation under high pressureCold forging dies, drawing dies.YXR7Matrix high speed steel, extremely highest toughness in62-65HRC. Available for vacuum quenching.Rolling dies, cold forging dies, roll, cold forging panches,blanking panches.YXR3Matrix high speed steel for general use, extremely highesttoughness in 58-61HRC.Dies to be used for cracking or chipping resistance.YXR33Matrix high speed steel highest toughness in high speedsteels. Standard hardness 54-58HRC.Cold forging dies, warm forging dies.HAP5RExtremely tough Powder Metallurgy process high speed steel.Cold forging dies, fine blanking dies.HAP10Extremely tough Powder Metallurgy process high speed steel.Cold forging dies, fine blanking dies.HAP40P/M high speed steel with high abrasion resistance andtoughness for general use.Press forming dies for mass production, roll.HAP72P/M high speed steel with high hardness and highestabrasion resistance.Cold plastic working dies of long life, high performanced ICmolds.Applications in cold work diesMachine cutterFor plastic formingApplicationTrimming diesShearing blade(straight tooth)Billet shearGaugesStandardhardness(HRC)Recommended YSS steelFor general useFor mass production useFor abrasion resistanceFor impact resistanceYXM1, HAP40YXR3, YXR7For sheet use55-60SLD, SLD-MAGIC, ARK1For heavy plate use50-55DAC, DMCold hobbing dies55-60SLD, SLD-MAGICYXM1Drawing dies57-62SLD, YXM1HAP40For sheet service55-60SLD, SLD-MAGIC, ARK1YXM1, YXR7For medium plate53-58SLD, SLD-MAGIC, ARK1, ACD8For heavy plate48-53DM, ACD8Rotary shear slitters54-60SLD, SLD-MAGIC, ARK1Thicknesses 50mm and under50-55DM, ACD8Thicknesses over 50mm48-53DAC, DM, ACD860-64SGT, ACD37, YCS3YXR3YXR33YXM1, HAP40 Attention 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 notice.3

YSS Cold Work Tool SteelsCharacteristics of YSS cold work tool steelsCharacteristics of steelsHAP72: Standard steel (JIS equivalent): Original steelP/M high speed steelHAP40Wear resistance, StrengthYXM4Wear atrix high speed steelExcellent machinabilityYXR3ToughnessAir hardening steelARK1ACD37SGTYXR33HMD5Flame hardening steel40HRC pre-hardened steelFor small productionYCS3HI-PM MAGICToughnessComparison of characteristicsDistortion itySLD-MAGICAAA-A A A-B58 - 62SLDAAB AABC57 - 63SLD10A-AA-A AB-C59 - 65ARK1BAAAAA-B58 - 60SGTCBBCDAB57 - 63YCS3DCCDDA B57 - 63ACD37BABAAAB55 - 60HMD5CBB AA55 - 60HI-PM MAGICDDA AA40YXM1AA A-BBBC58 - 64YXM4A A BBBB-C62 - 66YXR7AAAABBC61 - 65YXR3A-AA BBB C 58 - 61YXR33BBAABBC54 - 58HAP5RAAA AABC58 - 62HAP10AAAAA-BC62 - 65HAP40A A A-BAC C64 - 67HAP72AACAACD68 - 71Grade -- - - -Weldability (A is the uppermost level and indicates higher performance) Attention 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 notice.4

YSS Cold Work Tool SteelsCharacteristics of YSS cold work tool steelsWear P7270.0Specific abrasion volume(mm3/mm2・mm) 10-70.51.01.52.0Ohgoshi-method wear testWork material: SCM415Friction distance : 400mFriction speed : 0.76m/sLoad: 67NToughnessBending strength(N/mm2)(kgf/mm2)YXR36,000ARK1Bending 0010072(J/cm2)Charpy impact value(kgf-m/cm2)20020YXR3310mm R-notch Charpy impact 2HAP726668700 Attention 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 notice.5

YSS Cold Work Tool SteelsCharacteristics of YSS cold work tool steelsCompressive strengthTensile ngth2,000SLD4000.2%ProofstressSLD520 ile strengthCompressive ness(HRC)455055600Hardness(HRC)Fatigue 65HRC)Rotating bending fatigue test104105106Number of test cycle107Physical propertiesGradeThermal expansion coefficient 10 6/ 20 - 200 Thermal conductivityW/(m・K)20 Young’s 212HAP4010.319.3227 Attention 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 notice.6

YSS Cold Work Tool SteelsHeat treatment of YSS cold work tool steelsHardening* Please refer to the standard heat-treatment condition of each grade for hardening and quenching condition.Alloy tool steels, Carbon tool steelsHigh speed tool steelsQuenching temperatureQuenching temperature750 - 800 850 Holding time500 - 600 T 2T 1Firstpre-heatingSecondpre-heatingRefer tothe tableAustenitization 15 2550754050T30min/25mmT 0 125 150 200 300TimeThickness(mm)5Holding time (sec)Holding time(min)15256065450 - 550 Slow cooling(Y R: rapid cooling)Refer tothe table30min/25mmTemperingAbout 80 CAustenitizationHolding time at austenitizing temperatureHolding time at austenitizing temperatureThickness(mm)Holding time500 - 600 T7080 1006010203040506070809090 160 240 280 350 390 420 440 495Salt bathMagnification(Holding time/Thickness) 12 9 8 8 7 7 6.5 6 5.5 5.5Note: If you take preheating time, dipping time can be regarded as holding time.TemperingTempering temperatureNote1: This standard is applicable to tempering at 500ºC or more. When tempering at 250-500ºC, holding timemust be increased to 1.5 times longer and at lower than 250ºC, 2 times longer than the standard.Note2: Tempering is required no less than two times for grades containing no cobalt and at least three times forgrades containing cobalt to improve toughness when high temperature tempering is done.Note3: Because toughness deteriorates, tempering higher than 600ºC must avoid for high-speed tool steels.TRefer to the tableThickness (mm)Holding time for tempering (h) 2526 - 3536 - 6465 - 8485 - 124125 - 174175 - 249250 - 349350 - 49911.52345678Annealing1. All material is delivered as spheroidized annealed condition.2. After reforging, spheroidizing is to be done before hardening. Please refer to the standard heat treatment conditions.3. Stress relief annealing is to be done to remove stress caused by cold working such as drawing and rolling and to softenor reduce distortion caused by subsequent hardening. Heating temperature : 650-700 Holding time : 1h/25mm thickness Attention 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 notice.7

YSS Cold Work Tool SteelsHeat treatment of YSS cold work tool steelsStandard heat treatment conditionsHardeningTemperingTempered hardness(HRC)Annealing 2551,010 -1,040Air cool480 - 530 or 150 - 250 Air cool 60830 - 880 Slow coolingSLD 2481,000 -1,050Air cool480 - 530 or 150 - 200 Air cool 58830 - 880 Slow coolingSLD10 2481,020 -1,070Air cool520 - 550 62830 - 880 Slow coolingARK1 2481,010 -1,040Air cool480 - 530 or 150 - 250 Air cool 58830 - 880 Slow coolingSGT 217800 - 850Oil quench150 - 200Air cool 60750 - 780 Slow coolingYCS3 212790 - 850Oil quench150 - 200Air cool 63750 - 780 Slow coolingACD37 235830 - 870Air cool150 - 200Air cool 58750 - 800 Slow coolingHMD5 235 825 - 875 Slow coolingHigh speed tool steelsSLD-MAGICYXM1 255YXM4 277YXR7 241YXR3 241YXR33 241P/M High speed tool steelsCold work tool steelsHeating temperatureHardness asdeliveringGradeHAP5R 269HAP10 269HAP40 277HAP72 352Flame hardening(1)1,200 -1,240(2)1,160 -1,200(1)1,230 -1,250(2)1,210 -1,230(1)1,160 -1,180(2)1,120 -1,160(1)1,150 -1,170(2)1,130 -1,150Air cool940 - 1100 Oil quench550 - 570Air cool 63800 - 880 Slow coolingOil quench560 - 580Air cool 64800 - 880 Slow coolingOil quench540 - 580Air cool 62800 - 880 Slow coolingOil quench560 - 590Air cool 57800 - 880 Slow cooling1,080 -1,140Oil quench550 - 600Air cool 54800 - 880 Slow cooling1,120 -1,160Oil quench530 - 580Air cool 58820 - 870 Slow coolingOil quench550 - 580Air cool 63820 - 870 Slow coolingOil quench560 - 580Air cool 66820 - 870 Slow cooling560 - 580Air cool 68820 - 870 Slow cooling(1)1,170 -1,190(2)1,120 -1,170(1)1,190 -1,210(2)1,120 -1,1901,180 -1,210Oil quench(1) Simple shape tools(2) Tools of complicated shape, requiring toughness in particular* Specimen size is 15mm squire or round by 20 mm long in accordance with JIS standard hardness test.HardenabilityThe maximum diameter of a round barstock that obtains 60 HRC hardness atits center by quenching.70CoolingAir coolSLD-MAGICφ170φ550SLDφ170φ550ACD37φ120 SGTYXM1YXR7HAP1060Oil quenchφ8φ70φ20φ180φ170φ550 φ180YXR7(1,180 )SGT(850 )Hardness(HRC)GradeHalf temperature time : Time required for cooling from quenching temperature to{(quenching temperature room temperature) / 2}50YXM1(1,180 )SLD(1,025 )403020101.08φ※70φ 2.020φ※180φ 3.0 4.06.0 8.0 10170φ※550φ 2030 4060 80 100Half temperature time (min)200400 600 800 1,000〔※:Air cool, :Oil quench〕 Attention The characte