Tool Steels for the Plastics Industry - Buderus Edelstahl Gmbh

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Properties and applications Steel group and Material number Unalloyed tool steel 14 SEL designation AISI AFNOR Material characteristic 1730 C45U SAE 1045 XC 48 Surface hardenable to 55 HRC Heat-treatable mould steels 2311 ISO-BM 40CrMnMo7 ~ P 20 40 CMD 8 Mould steel, economical to machine, good polishability, grain-reliable for dimensions less than 400 mm thick, hard chrome platable, flame hardenable, nitridable 2738 ISO-BM 40CrMnNiMo8-6-4 ~ P 20 + Ni 40 CMND 8 Properties as for 2311 ISO-BM, but reliable penetration hardening-characteristics for larger dimensions 2738mod.TS 2738mod.TS(HH) 26MnCrNiMo6-5-4 Pre-hardened mould steel for the largest dimensions, grain reliable, good polishability, good weldability, good machinability, high thermal conductivity 2312 40CrMnMoS8-6 ~ P 20 + S 40 CMD 8 S Mould steel with very good machinability, not suitable for polishing, etch graining or hard chrome plating purposes 2711 ISO-B 54NiCrMoV6 ~ 6 F 2 55 NCDV 7 Tough heat-resistant mould steel grain reliable, good polishability, hard chrome platable, high percentage purity due to ISO-B process Case hardening steel 2764 ISO-B X19NiCrMo4 P 21 ~ 19 NCD 16 Low-distortion mould steel with surface hardness from 60–62 HRC and core hardness 325–415 HB after case hardening (in air), very good polishability Penetration hardening tool steels 2343 ISO-B mod. ~ X37CrMoV5-1 ~ H 11mod. Z38 CDV 5 Wear-resistant hot working steels, hardenability up to 50 HRC, good nitriding performance, can also be used for large moulds, high percentage purity 2379 ISO-B X153CrMoV12 ~ D 2 Z 160 CDV 12 Inserts nitridable after special heat treatment 2767 ISO-B 45NiCrMo16 6 F 7 45 NCD 16 Air hardening steel with high dimensional stability, very good toughness, hardenability 50–54 HRC, very good polishability 2842 90MnCrV8 O 2 90 MV 8 Simple heat treatment, low-distortion, surface layer hardness 58–62 HRC, no special requirements in terms of polishability Corrosion resistant steels 2083 ISO-B X40Cr14 420 Z 40 C 14 Corrosion-resistant mould steel with good polishability, good workability, hardenability 50–54 HRC 2085 X33CrS16 ~ 422 + S ~ Z 33 CS 16 Corrosion-resistant mould steel with very good machining properties 2316 ISO-B mod. ~ X38CrMo16 ~ 422 Z 35 CD 17 Mould steel with very good corrosion resistance, polishable, also hardenable to 50 HRC Maraging steel 2709 X3NiCoMoTi18-9-5 Maraging 300 Nitriding steels Z 2 NKD 18–09 This steel permits simple, non-warping heat treatment with precipitation hardening at 480 °C after finish machining, hardenability up to 55 HRC 2344 ISO-B X40CrMoV5-1 H 13 Z 40 CDV 5 Nitridable hot working steel for extreme stress exposure to wear and torsion at high temperatures 7735 14CrMoV6-9 20 CDV 5.07 CrMoV nitriding steel with high toughness and thermal strength, weldable 8519 31CrMoV9 32 CDV 12 CrMoV nitriding steel for higher wear exposure 8550 34CrAlNi7-10 34 CAND 7 Aluminium alloyed standard nitriding steel surface hardness after nitriding 1,000 HV approx.
Delivered condition For which tools Normalised, max. 190 HB Attachments, holding blocks and tool holding fixtures with low stress, prototyping Tempered to 280–325 HB � 950–1100 MPa* Tempered to 280–325 HB � 950–1100 MPa* Normal hardness: 2738mod.TS Tempered to 280–325 HB � 950–1100 MPa* HighHard: 2738mod.TS(HH) Tempered to 310–355 HB � 1050–1200 MPa* Tempered to 280–325 HB � 950–1100 MPa* Annealed to max. 248 HB Tempered to 280–325 HB � 950–1100 MPa* or to 355–415 HB � 1200 - 1400 MPa* Annealed max. 250 HB Dies for compression and injection moulding tools less than 400 mm thick Dies for compression and injection tools, holding blocks production for dimensions ≥ 400 mm thick Large tools for compression and injection moulds, bumpers, dashboards, garbage containers, TV cabinets Compression and injection moulding tools subject to higher mechanical and thermal stress and special surface requirements such as good polishability and hard-chrome platability Cores for compression and injection moulding tools with no surface requirements and low mechanical stress mould assemblies, holding blocks subject to low stress, prototyping Compression and injection tools with higher mechanical and thermal stress and special surface requirements such as good polishability and hard chrome plateability; contour hardening is recommended Compression and injection moulding tools with high compression stress combined with abrasive surface stress Annealed, max. 229 HB Highly stressed plastic moulds, mould inserts for high hardnesses and abrasive stress Annealed, max. 255 HB For highly abrasive stress and high hardnesses from 58 to 63 HRC Annealed, max. 260 HB for high-speed inserts up to 54 HRC Annealed, max. 229 HB Annealed, max. 241 HB Tempered on request Tempered to 265–310 HB � 900–1050 MPa* Tempered to 265–310 HB � 900–1050 MPa* Solution annealed, 300 HB approx � 1000 MPa* Tempered to 280–325 HB � 950–1100 MPa* Tempered to 265–310 HB � 900–1050 MPa* Tempered to 265–310 HB � 900–1050 MPa* Tempered to 237–297 HB � 800–1000 MPa* Mould inserts Mould fittings and mould frames Mould inserts, slit dies, profile dies, sizing tools, blowing moulds, extrusion dies Injection moulding tools subject to high compression stress, part inserts, cores, ejectors Extruder tools such as screws and cylinders, plastifying tools * Surface hardness in Brinell, converted into MPa to DIN EN ISO 18265 Table A.1 Note: There may be a deviation of hardness values where portable hardness testing equipment is used. Please refer to the equipment manufacturer to determine the possible deviation. 15
Page 1 and 2: Tool Steels for the Plastics Indust
Page 3 and 4: Lagerservice Custom-made steels and
Page 5 and 6: Large Dimensions are our Strength F
Page 7 and 8: 2312 The Economic Option Mould stee
Page 9 and 10: 2343 ISO-B mod. The Tough Option Sp
Page 11 and 12: 2738 ISO-BM The Proven Steel For la
Page 13: 2767 ISO-B Hard and Tough The mould
Page 17 and 18: astic mould steels HSS (1.3243) fz=
Page 19 and 20: DEVILLE Rectification Buderus An In

Tool Steels for the Plastics Industry - Buderus Edelstahl Gmbh

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