N/mm² N/mm² N/mm² N/mm²

Transcription

1 Material Grades

2 Material Grades Material no S 355 J2 (St 52-3) A 52 FP A738 Indicatory analysis Strength haracter Application N/mm² Structural steel unalloyed, with good weldability For common applications in tool, mould and machine construction U X N/mm² Tool steel unalloyed, suitable for flame hardening Unhardened parts for mould and jig construction or plates and frames for tools and dies X 40 r 13 Z r N/mm² Steel for through hardening low corrosion, high-alloy avity plates and inserts for the processing of plastics, mainly when corrosive plastic melts are being used ESU (ESR) X 40 r 13 Z ESR r N/mm² Steel for through hardening low corrosion, suitable for mirror polishing, electro-slag remelted, high-alloy avity plates and inserts for the processing of plastics, mainly when corrosive plastic melts are being used X 33 rs 16 Z 35 D 17.S 422+S r S Ni N/mm² Tool steel pre-toughened, corrosion resistant, with good cutting properties, high-alloy Plates for corrosion resistant mould tools and die sets; moulds for corrosive plastics r 5 20 M r N/mm² Steel for case-hardening alloyed Moulding plates and machine parts rv rv3 KU L2 r V N/mm² old-work steel alloyed, wear-resistant ore pins, punches, small turned parts rmo 7 40 MD 8 35 rmo 8 KU P20 r Mo N/mm² Tool steel alloyed and pre-toughened, ideal for nitriding and polishing Moulding plates, inserts and high-tensile machine parts rmos MD 8.S P20+S r Mo S N/mm² Tool steel alloyed and pre-toughened, good cutting properties Plates for mould tools and dies with increased requirements on strength X 38 rmo 16 Z 35 D 17 X 38 rmo 16 KU r Mo N/mm² Tool steel pre-toughened, corrosion-resistant, polishable, high-alloy Moulds for processing corrosive plastics X 38 rmov 51 Z 38 DV 5 X 37 rmov 51 KU H11 r Mo V N/mm² Hot-work steel high-alloy Moulding plates and inserts for die casting (Al, Mg, Zn etc.) and injection mould tools ESU (ESR) X 38 rmov 51 Z 38 DV 5 X 37 rmov 51 KU H11 ESR r Mo V N/mm² Hot-work steel suitable for mirror polishing, electro-slag remelted, high-alloy Moulding plates and inserts for die casting (Al, Mg, Zn etc.) and injection mould tools X 40 rmov 5-1 Z 40 DV 5 X 40 rmov 5-1 KU H r Mo V N/mm² Hot-work steel high-temperature resistant, high temperature wear resistant, excellent thermal conductivity, high-alloy Standard material for hot-work tools, extrusion moulds, dies, tools for plastics processing ESU (ESR) X 40 rmov 5-1 Z 40 DV 5 X 40 rmov 5-1 KU H13 ESR r Mo V N/mm² Hot-work steel suitable for mirror polishing, electro-slag remelted, high-alloy Standard material for hot-work tools, extrusion moulds, dies, tools for plastics processing 2

3 Material no X 100 rmov 5 Z 100 DV 5 X 100 rmov 5-1 KU A2 Indicatory analysis Strength haracter Application r Mo V N/mm² Steel for through hardening dimensional stability and high hardenability; wear-resistant, cold-work steel with good cutting properties Mould plates and inserts as well as cutting punches, wear plates and cutting dies with high requirements on toughness X 155 rvmo 121 Z 160 DV 12 X 155 rvmo 12 1 KU D2 r Mo V N/mm2 Steel for through hardening wear-resistant cold-work steel, high-alloy Mould plates and inserts as well as wear plates or cutting dies with increased wear resistance NirMoV 7 55 NDV 7 L r Mo Ni V N/mm² Steel for through hardening good high-temperature resistance and toughness Auxiliary tools for extruders, hot-forging tools, dies for processing tin, lead and zinc alloys HH 56 NirMoV 7 55 NDV 7 L r Mo Ni V N/mm² ( 43 HR) Steel for through hardening, quenched and tempered good high-temperature resistance and toughness Mould inserts, cores and slides for die casting (Al, Mg, Zn etc.) and injection mould tools rnimo MND 8 P20 + Ni r Mo Ni N/mm² Tool steel quenched and tempered section steel with uniform strength even in plates and bars with larger dimensions; suitable for polishing and nitriding Large cavity plates with deep cavities for items such as bumpers or dashboards NirMo ND NirMoV 16 KU 6F7 r Mo Ni N/mm² Steel for through hardening special alloy suitable for polishing, with high resistance to pressure and good flexural strength High-performance cavity plates and inserts; cutting and bending inserts for high compressive loads rv 8 90 MV 8 90 Vr 8 KU O2 r V N/mm² Steel for through hardening dimensional stability and high hardenability; wear-resistant, coldwork steel with very good cutting properties avity plates and inserts exposed to abrasive stress; wear plates, cutting dies and guiding plates; pressure pads and guiding rails HS Z 85 DV 6 X 82 MoV 6 5 M 2 reg. r Mo V N/mm² HSS - High speed steel very high resistance to adhesion and wear in combination with high toughness and compressive strength Blocks for eroding, cutting punches and fine blanking punches; impact extrusion punches and dies; inserts with a very high wear resistance PM PM X 130 MorV Mo 5 r 4 V 3 M 3-2 (PM) r Mo V N/mm² HSS powder metallurgy steel Outstanding resistance to adhesive and abrasive wear; optimal toughness and good through hardenability Blocks for eroding, cutting punches and dies with particularly durable edges, inserts with excellent wear resistance r 5 16 M r N/mm² Steel for case-hardening alloyed Guiding elements, cores and machine parts rmo 4 42 D 4 42 rmo S r Mo < N/mm² Tempered steel high resistance, high toughness, universally useable in engineering Engineering, Groundplates, Axes, Gear shafts, Gear wheels (A-5083) EN: AlMg 4.5 ISO 5083 A-G4.5M 7790 Fe u Mg r Zn Ti N/mm² (depending on thickness) Aluminium alloy Plates for mould bases and jigs (A-7075) EN: AlZnMgu 1.5 ISO 7075 A-Z5GU 9007/2 Fe u Mg r Zn Ti N/mm² (depending on thickness) Aluminium zinc alloy high-strength, hardened Plates for mould tools and dies with increased requirements on strength This general information is only a recommendation for anyone to apply freely. For individual cases the buyer must make sure they purchase for the right application. If in doubt, a specialist (e.g. steel manufacturer, hardening shop) should be consulted. Liability does not lie with Meusburger Georg GmbH & o KG. 3

4 S 355 J2 (St 52-3) A 52 FP - A N/mm² TechnicalTip - If no welding is required, we recommend better machinability in spite of higher strength Thermal conductivity at 20 : 40 unalloyed structural steel with good weldability for common applications in tool, mould and machine construction elding: very good weldability due to its low carbon content Hard chroming : not usual Soft annealing: 650 to 700 for about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 ; further cooling in air, max. 180 HB 4

5 U X N/mm² Thermal conductivity at 20 : 50 unalloyed tool steel with excellent machinability; chilled cast steel, suitable for flame and inductive hardening unhardenend parts for mould and jig construction or plates and frames for tools and dies not usual Soft annealing: 680 to 710 for about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 ; further cooling in air, max. 190 HB 800 to 830 quenching in water obtainable hardness: 58 HR hardening depth: 3 5 mm max. 15 mm through hardening thickness slow heating to tempering temperature immediately after hardening, to 180 to 300 depending on desired hardness 1 hour per 20 mm: min. 2 hours HR

6 / ESR* X 40 r 13 Z / 420 ESR r N/mm² TechnicalTip - cold-work steel - must be tempered several times after hardening (max. 52HR). The demand for max. hardness often ends up in material breakage. - mould temperature max corrosion-resistant after hardening - The ESR quality guarantees an extremely pure and homogeneous microstructure. Thermal conductivity at 100 : 18 low corrosion, high-alloy, low warpage steel for through hardening with excellent properties for mirror polishing as well as good photoetching, good machinability, high wear resistance and high dimensional stability mould plates and inserts for working with chemically aggressive plastics; because of excellent polishing, suitable for optical and medical products can be polished in the annealed and hardened state; good preliminary surface preparation work is decisive for a good polish good photoetching (graining) Spark eroding: in the hardened and tempered condition, treat again for stress relief about 20 below the last temperature not recommended Annealing: 750 to 800 for about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 650 ; further cooling in air, max. 200 HB 1000 to to 30 minutes keeping curing temperature quenching in oil/compressed gas/hot bath obtainable hardness: HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 2 hours per 20 mm part thickness; twice tempering is recommended HR

7 X 33 rs 16 Z 35 D 17.S S r S 0.06 Ni 0.30 Thermal conductivity at 100 : 1080 N/mm² 18 corrosion resistant, high-alloy, pre-toughened tool steel with good machinability due to Sulphur (S) additive plates for corrosion resistant mould tools and die sets; moulds for corrosive plastics; the expense for protection and care of mould tools is reduced thanks to increased corrosion resistance; not suitable for mould inserts not recommended Usually no heat treatment is required. Annealing: 850 to 880 for about 2 to 5 hours slow controlled cooling; hardness max. 240 HB 1000 to 1030 keep curing temperature for 30 minutes quenching in oil is preferable obtainable hardness: 48 HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 2 hours per 20 mm part thickness; tempering twice is recommended HR

8 r 5 20 M r 1.20 TechnicalTip - For mirror finish, we recommend the through hardening steel Thermal conductivity at 100 : 660 N/mm² 38.5 standard steel for case-hardening with good machinability; high surface hardness with tough core machine parts and moulding plates with a high surface hardness; synthetic resin press moulds for the processing of thermoplastics and thermosets possible Usually, hardened parts are not nitrided loss of hardness. recommended, results in increased wear and corrosion resistance Annealing: 670 to 710 for about 2 to 5 hours slow controlled cooling, further cooling in air, max. 205 HB arburising: 900 to 950. The choice of the carburising means and carburising temperature depends on the desired surface carbon content, the carburising graph and the required case depth. ase hardening: 870 to 930 in powder/salt bath, cooling in oil/hot bath at 160 to 250 Intermediate heat treatment: 630 to 650, for about 2 to 4 hours with slow furnace cooling Preheating: 350 depending on dimensions curing temperature 810 to 840 in oil of ~ 60 warmth ooling: in to about 100 oil, then in air to about 50 1 hour per 20 mm part thickness, min. 2 hours HR

9 rv rv 3 KU L r 0.70 V 0.10 TechnicalTip - lver steel is finish-ground to h9 tolerance. Thermal conductivity at 100 : 740 N/mm² 33 hrome-vanadium alloyed cold-work steel with high resistance; also known as silver steel. small turned parts, core pins, punches and engraving tools unusual Annealing: 710 to 740 for about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 further cooling in air, max. 220 HB 780 to to 30 minutes keeping curing temperature quenching in water/oil obtainable hardness: HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 1 hour per 20 mm part thickness; min. 2 hours/cooling in air HR

10 rmo 7 40 MD 8 35 rmo 8 KU P r 1.90 Mo 0.20 TechnicalTip - core strength decreases with increasing plate thickness For thickness >300 we recommend Thermal conductivity at 100 : 1080 N/mm² 35 alloyed and pre-toughened tool steel, especially suitable for polishing; high dimensional stability moulding plates, inserts and high-tensile machine parts good suitability for polishing; for higher surface requirements, through hardened steels are recommended. possible increases the steel's wear resistance particularly increases wear resistance and corrosion resistance already pre-toughened; usually no heat treatment required Before nitriding, stress-relief annealing is recommended at 580. (Meusburger standard) To prevent hydrogen brittleness, the tool must be tempered for approximately 3 to 4 hours at 180 after the hard chroming. 840 to 860 ooling: to 180 /220 in oil/hot bath, then in air to about 100 obtainable hardness: 52 HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 1 hour per 25 mm part thickness HR

11 rmos MD 8.S - P20 + S TechnicalTip - for increased surface quality requirements use material grade r 1.90 Mo 0.20 S 0.06 Thermal conductivity at 100 : 1080 N/mm² 35 alloyed and pre-toughened tool steel, with excellent machinability in the hardened condition because of the Sulphur additive; high dimensional stability plates for mould tools and dies with increased requirements on strength; high-tensile machine parts technical polishing possible; for higher surface requirements we recommend or not recommended increases the steel's wear resistance already pre-toughened, usually no heat treatment required before nitriding, stress-relief annealing at 580 (Meusburger standard) is recommended 840 to 860 ooling: to 180 /220 in oil/hot bath obtainable hardness: 52 HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 1 hour per 25 mm part thickness. HR

12 X 38 rmo 16 Z 35 D 17 X 38 rmo 16 KU r Mo 1.20 TechnicalTip - corrosion resistant like for superior surfaces Thermal conductivity at 100 : 1010 N/mm² 18 corrosion resistant, high-alloy, polishable, pre-toughened tool steel mould tools for processing corroding plastics good suitability possible reduces the corrosion resistance already pre-toughened; usually no heat treatment required Annealing: 760 bis 800, for about 4 to 5 hours slow controlled cooling of 10 to 20 per hour to about 650 further cooling in air, max. 230 HB 1030 to to 30 minutes keeping curing temperature quenching in water/oil obtainable hardness: 49 HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 1 hour per 20 mm part thickness HR

13 / ESR* X 38 rmov 51 Z 38 DV 5 X 37 rmov 51 KU H11 / H11 ESR r 5.30 Mo 1.20 V 0.40 TechnicalTip - susceptible to corrosion; during maching, continuous corrosion protection has to be ensured (especially during wire EDM) ESR is highly suitable for mirror polishing Thermal conductivity at 200 : 780 N/mm² 27 high-alloy hot-work steel with high toughness and heat resistance, hot cracks resistance and good thermal conductivity; for very high requirements available in grade *ESR (Electro-Slag Remelted) moulding plates and inserts for die casting (Al, Mg, Zn etc.) and injection mould tools in the hardened and tempered condition, treat again for stress relief about 20 below the last tempering temperature increases the wear resistance and prevents the bonding of casting material in special cases Annealing: 750 to 800, about 4 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 ; further cooling in air, max. 205 HB Before nitriding stress-relief annealing is recommended at 550. (Meusburger standard) A treatment at 525 in ammonia gas results in a surface hardness of approx. 55 HR to to 30 minutes keeping curing temperature quenching in water/oil/air obtainable hardness: HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 1 hour per 20 mm part thickness; repeated tempering is recommended High temperature strength chart: HR highly suitable very easily feasible (graining) N/mm²

14 / ESR* X 40 rmov 5-1 Z 40 DV 5 X 40 rmov 5-1 KU H13 / H13 ESR r 5.30 Mo 1.40 V 1.00 TechnicalTip - susceptible to corrosion; during maching, continuous corrosion protection has to be ensured (especially during wire EDM) ESR is highly suitable for mirror polishing Thermal conductivity at 100 : 780 N/mm² 26 high-alloy hot-work steel, high heat resistance, high wear resistance, good toughness, thermal conductivity and hot cracks resistance, limited use for water cooling; for very high requirements available in grade *ESR (Electro-Slag Remelted) standard material for hot-work tools, extrusion moulds, dies, tools for plastic processing possible in special cases Annealing: 750 to 800 for about 4 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 further cooling in air, max. 230 HB 1020 to to 30 minutes keeping curing temperature quenching in water/oil obtainable hardness: 54 HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 1 hour per 20 mm part thickness HR

15 X 100 rmov 5 Z 100 DV 5 X 100 rmov 5-1 KU A r 5.20 Mo 1.10 V N/mm² Thermal conductivity at 100 : 19 steel for through hardening with good machinability, high wear resistance and low warpage; very good dimensional stability, thoughness and through hardenability mould plates and inserts as well as cutting punches, wear plates and cutting dies with high requirements on toughness possible Soft annealing: 800 to 840 for about 4-5 hours slow controlled cooling of 10 to 20 per hour to about 650 further cooling in air, max. 230 HB 950 to 980 quenching in calm air obtainable hardness: 62 HR slow heating to tempering temperature immediately after hardening; tempering twice recommended HR

16 X 155 rvmo 121 Z 160 DV 12 X 155 rvmo 12 1 KU D r Mo 0.80 V 0.80 TechnicalTip - secondary hardening, very good base material for nitriding or coating Thermal conductivity at 100 : 850 N/mm² 21 high-alloy steel for through-hardening with moderate machinability; extremely wear resistant and low warpage, good dimensional stability, toughness and through hardenability mould plates and inserts as well as wear plates and cutting dies with increased wear resistance ideal when hardened very well suited, due to the fact that the hardness of the base material will not fall below 60 HR possible Soft annealing: 800 to 850 for about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 further cooling in air, max. 235 HB to 1080 quenching in oil/air/hot bath obtainable hardness: HR slow heating to tempering temperature (to avoid forming of cracks) immediately after hardening; triple tempering at max. secondary hardening temperature is recommended; rapid cooling following the tempering improves the dimensional stability; maximum hardness achievable after tempering: HR HR

17 NirMoV 7 55 NDV 7 - L r 1.10 Mo 0.50 Ni 1.70 V N/mm² Thermal conductivity at 100 : 36 steel for through-hardening with good heat resistance, hardenability and toughness extrusion dies, hot-forging tools, dies for processing tin, lead and zinc alloys technical polishing possible possible Annealing: 650 to 700 for about 4 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 further cooling in air, max. 248 HB 950 to to 30 minutes keeping curing temperature quenching in water/oil obtainable hardness: 56 HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 1 hour per 20 mm part thickness HR

18 HH 56 NirMoV 7 55 NDV 7 - L r 1.10 Mo 0.50 Ni 1.70 V 0.10 Thermal conductivity at 100 : pre-hardened to 1350 N/mm² ( 43HR) 36 steel for through-hardening, quenched and tempered, with good heat resistance, hardenability and toughness mould inserts, cores and slides for die casting (Al, Mg, Zn etc.) and injection mould tools technical polishing possible possible Annealing: 650 to 700 for about 4 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 further cooling in air, max. 248 HB 950 to to 30 minutes keeping curing temperature quenching in water/oil obtainable hardness: 56 HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 1 hour per 20 mm part thickness HR

19 rnimo MND 8 - P20 + Ni r 1.90 Mo 0.20 Ni Thermal conductivity at 100 : 1080 N/mm² 33.5 low-sulphur tool steel, supplied in pre-toughened condition; due to its nickel content, it features uniform strength even with maximum plate dimensions large cavity plates with deep cavities for items such as bumpers, dashboards, moulding frames highly suitable suitable already pre-toughened, usually no heat treatment required Annealing: 710 to 740 for about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 further cooling in air, max. 235 HB 840 to to 30 minutes keeping curing temperature quenching in oil/hot bath/air 180 to 220 obtainable hardness: 53 HR slow heating to tempering temperature immediately after hardening; minimum time in furnace: 1 hour per 20 mm part thickness; tempering twice is recommended HR

20 NirMo ND NirMoV 16 KU 6F r 1.35 Mo 0.25 Ni 4.00 TechnicalTip - To avoid unwanted warping during plastic injection, the tempering temperature after hardening must exceed the operating temperature by 50. Example.: Operation at 200 Tempering at 250 = 52 HR Thermal conductivity at 100 : 830 N/mm² 30 Nickel alloyed steel for through hardening, with moderate machinability; very high resistance against bending and high compressive strength; very high toughness and good through hardenability, also with bigger sections. high-performance cavity plates and inserts for the processing of plastics with high surface requirements (mirror finish); stamping, forming, bending dies for particularly high pressure and bending stresses best metallurgical properties for mirror finish is possible highly suitable not usual particularly increases the steel's wear resistance and corrosion resistance Soft annealing: 610 to 650 for about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 further cooling in air, max. 260 HB 840 to 870 Quenching in oil/hot bath/air Obtainable hardness: HR Slow heating to tempering temperature immediately after hardening. Minimum time in furnace: 1 hour per 20 mm part thickness. Tempering twice is recommended. HR

21 rv 8 90 MV 8 90 Vr 8 KU O r 0.40 V 0.10 TechnicalTip - Steel grade is an adequate alternative with regards to its properties, machinability and dimensional stability after heat treatment. Thermal conductivity at 100 : 760 N/mm² 33 steel for through-hardening with good machinability and high wear resistance; low warping and high dimensional stability; with high toughness and through hardenability (uniform hardness for cross sections < 40 mm) cavity plates and inserts exposed to abrasive stress; cutting punches; wear plates, cutting dies and guiding plates; pressure pads and guiding rails not common is possible Annealing: 680 to 720 for about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 further cooling in air, max. 220 HB 790 to 820 quenching in oil/hot bath (200 to 250 ) obtainable hardness: HR slow heating (to avoid forming of cracks) to tempering temperature immediately after hardening; tempering twice with intermediate cooling down to 20 increases the steel's toughness HR

22 (HSS) HS Z 85 DV 6 X 82 MoV 6 5 M 2 reg r 4.0 Mo 5.0 V TechnicalTip - excellent for PVD and VD coating; highest dimensional stability because the steel was tempered at more than 520. Thermal conductivity at 100 : 920 N/mm² 27.4 high-speed steel featuring high resistance to abrasion and wear in combination with high toughness and compressive strength. blocks for eroding, cold forming tools such as cutting, fine blanking and impact extrusion punches and dies inserts with a very high wear resistance oating: suitable highly suitable highly suitable for EDM highly suitable Annealing: 820 to 850, about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 55 ; then further cooling in air. Maximum 270HB quenching in oil/compressed gas/air/hot bath obtainable hardness: 66 HR slow heating to tempering temperature (to avoid forming of cracks) immediately after hardening; triple tempering is recommended HR

23 PM (PM23) PM X 130 MorV Mo 5 r 4 V 3 M 3-2 (PM) r 4.0 Mo 5.0 V TechnicalTip - excellent for PVD and VD coating; highest dimensional stability because the steel was tempered at more than 520. Thermal conductivity at 100 : 870 N/mm² 24 powder metallurgy high-speed steel with good machinability, high resistance to adhesive and abrasive wear, with optimal toughness due to the uniform and fine carbide structure, very good through hardenability and high dimensional stability blocks for eroding, cutting punches and dies with particularly durable edges, inserts with excellent wear resistance best metallurgical properties for mirror finish highly suited for nitriding highly suited for EDM oating: highly suited for coating Soft annealing: at 860 to 880, for approx. 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 ; further cooling in air, max. 260HB Quenching in oil/compressed gas/air/hot bath Attainable hardness: HR Slow heating to tempering temperature (in order to avoid formation of cracks) immediately after hardening; tempering three times is recommended HR

24 r 5 16 M r 0.95 Thermal conductivity at 20 : 600 N/mm² 44 steel for case hardening for parts requiring a core strength of 800 to 1000 N/mm² and high wear resistance guiding elements, cores and machine parts with high surface hardness; synthetic resin press moulds for processing thermoplastics and thermosetting plastics possible Usually, hardened parts are not nitrided loss of hardness. recommended, increases wear and corrosion resistance Annealing: 670 to 710 for about 2 to 5 hours slow controlled cooling, further cooling in air, max. 205 HB arburising: 900 to 950. The choice of the carburising means and carburising temperature depends on the desired surface carbon content, the carburising graph and the required case depth. ase hardening: 870 to 930 in powder/salt bath, cooling in oil/hot bath at 160 to 250 Intermediate heat treatment: 630 to 650, for about 2 to 4 hours with slow furnace cooling Preheating: 350 depending on dimensions curing temperature 810 to 840 harden in 60 hot oil ooling: down to about 100 in oil, then in air to about 50 1 hour per 20 mm part thickness, min. 2 hours

25 : rmo 4 42 D 4 42 rmo S <0.035 r 1.10 Mo 0.22 ~720 N/mm² Tensile strength: Thermal conductivity at 20 : heat treated max. 720 N/mm² 42.6 alloyed and pre-toughened steel with high resistance and high toughness; universally useable in engineering machine construction, base plates, axes, gear shafts, gear wheels elding: oating: suitable not recommended suitable for EDM suitable Normalizing: 840 to 880 afterwards air cooling some components need tempering afterwards Annealing: 680 to 720, about 2 to 5 hours slow controlled cooling of 10 to 20 per hour to about 600 then further cooling in air. Maximum 217 HB Toughening: max N/mm² 820 to 880 quenching in oil or water oil hardening for thin and complex, water hardening for large and simple components obtainable hardness: HR slow heating to temperature (to avoid forming of cracks) immediately after hardening; at least 60 minutes cooling in air HR

26 AlMg4,5 / ISO 5083 A - G4,5M Fe 0.40 u Mg r Zn 0.25 Ti 0.15 Thermal conductivity at 100 : N/mm² (depending on the thickness) not hardenable, homogenised, annealed aluminium alloy with particularly good machining and welding properties; excellent dimensional stability; ideally suited for anodising, hard chromium plating and chemical nickel plating; very high resistance to corrosion Density: 2.66 kg/dm 3 Thermal expansion coefficient: m/mk Max. temperature permanent/short term: 90/110 plates for mould tools, rotary tables, machined components for machine and jig construction, moulds for prototypes and foamed parts Milling: Repair welding: suitable ideally suited Note: Subsequent heat treatment may lead to a deterioration of the mechanical properties! 26

27 AlZnMgu 1.5 / ISO 7075 A - Z5GU 9007 / Fe 0.50 u Mg r Zn Ti 0.20 depending on the thickness of the plate plate thickness [mm] tensile strength Rm [N/mm²] yield point Rpo2 [N/mm²] Thermal conductivity at 100 : hardened, high-strength aluminium zinc alloy with good properties for structure-etching, as well as good machinability, EDM and polishing properties Density: 2.8 kg/dm 3 Thermal expansion coefficient: m/mk Max. temperature permanent/short term 90/120 plates for mould tools and dies with increased requirements on strength; components for machine and jig construction Milling: Repair welding: possible suitable for structure-etching not suitable for welding Note: Subsequent heat treatment may lead to a deterioration of the mechanical properties. 27

28 old-work steel old-work steel is used for tools that are generally operated at a temperature lower than 200. The high alloy cold-work steel grades offer a high wear resistance combined to a good compressive strength. The low alloy grades and those having a low carbon content offer a higher toughness and sufficient compressive strength with a reduced wear resistance. Other noteworthy features are: Economic machinability, cold formability, well polishable and sufficiently resistant against agressive plastics. Hot-work steel The permanent operation temperature of hot-work steel is above 200. The hot-work steel thus offers best properties for tools designed to process high performance plastics. Further applications are in the field of die casting, extrusion and die forging. The following properties are expected of hot-work steel: high thermal resistance and toughness, high hot-wear resistance and high thermal shock resistance. Inside our furnaces with a total capacity of 240 tons, the steel we process is heat treated for stress relief. Steel of best quality Meusburger stands for products of finest quality. Steel is delivered from the most famous European steel mills and is being stress-relieved in house with great care. This unique procedure garantees our customers a low warping subsequent machining. Thanks to the temperature being maintained for a long time and slow cooling of the oven at the rate of 35 /h we obtain the best results in terms of stress-relieved material h heating up maintain cooling period 4 hours 6 hours 14 hours= 35 / hour 28

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30 2012/I Meusburger Georg GmbH & o KG. Alle Rechte vorbehalten. Kein Teil dieser Unterlagen darf ohne ausdrückliche schriftliche Erlaubnis der Meusburger Georg GmbH & o KG für irgendwelche Zwecke vervielfältigt oder übertragen werden. Druckfehler und Irrtümer sowie technische Änderungen vorbehalten. Meusburger Georg GmbH & o KG Kesselstr olfurt Austria T (0) / F (0) / sales@meusburger.com