Steel group and Material Number |
DIN designation |
AISI |
AFNOR |
Material characteristic |
Delivered condition |
For which tools |
| Unalloyed tool steel |
| 1730 |
C45W |
SAE 1045 |
Y 45 |
Surface hardenable to 55 HRC |
Normalised, max. 190 HB |
Attachments, holding blocks and tool holding fixtures with low stress, prototyping. |
| 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. |
Tempered to 280-325 HB
 950-1100 N/mm2 * |
Dies for compression and injection moulding tools less than 400mm thick |
| 2738 ISO-BM |
40CrMnNiMo8-6-4 |
~P 20 + Ni |
40 CMND 8 |
Properties as for 2311 ISO-BM, but reliable penetration hardening-characteristics for large dimensions.
|
Tempered to 280-325 HB
950-1100 N/mm2 * |
Dies for compression and injection tools, holding blocks production for dimensions ≥400 mm thick. |
2738mod, TS
2738mod, TS (HH) |
26MnCrNiMo6-5-4 |
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Pre-hardened mould steel for the largest dimensions, grain reliable, very good polishability, good weldablity, good machinability, high thermal conductivity. |
Normal hardness:2738mod.TS Tempered to 280-325 HB
950-1100 N/mm2 *
High hard: 2738mod. TS(HH) Tempered to 310-355 HB
1050-1200 N/mm2 * |
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 polishability (after special test) and hard chrome plateability |
| 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. |
Tempered to 280-325 HB
950-1100 N/mm2 * |
Cores for compression and injection moulding tools with no surface requirements and low mechanical stress mould assemblies, holding blocks subject to low stress, prototyping |
| 2711 ISO-B |
54NiCrMoV6 |
~ 6 F 2 |
55 NCDV 7 |
Tough heat- resistant mould steel grain reliable, very good polishability, hard chrome platable, high percentage purity due to ISO-B process. |
Annealed to max.250 HB
Tempered to 280-325 HB
950-1100 N/mm2 * or
to 355-415 HB
1200-1400 N/mm2 * |
Compression and injection tools with higher mechanical and thermal stress and special surface requirements such as very good polishability and hard chrome plateability; contour hardening is recommended. |
| Case Hardening steel |
| 2764 ISO-B |
X19NiCrMo4 |
P 21 |
~ 19 NCD 4 |
Low- distortion mould steel with surface hardness from 60-62 HRC and core hardness 325-415 HB after case hardening (in air), very good polishablity. |
Anealed max.250 HB |
Compression and injection moulding tools with high compression stress combined with abrasive surface stress. |
| Penetration hardening tool steels |
| 2343 ISO-B mod. |
~ X38CrMoV5-1 |
~ H 11mod. |
X36 CrMov 5 |
Wear-resistant hot working steels, hardenability up to 50 HRC, good nitriding performance, can also be used for large moulds, high percentage purity. |
Annealed, max.230 HB |
Highly stressed plastic moulds, mnould inserts for high hardnesses and abrasive stress. |
| 2379 ISO-B |
X153CrMoV12-1 |
~ D 2 |
Z 160 CDV 12 |
Inserts nitridable after special heat treatment. |
Annealed, max.255 HB |
For highly abrasive stress and high hardnesses from 58 to 63 HRC. |
| 2767 ISO-B |
X45NiCrMo4 |
6 F 7 |
45 NCD 17
(40 NCD 16) |
Air hardening steel with high dimensional stability, very good toughness, hardenability 50-54 HRC, very good polishability. |
Annealed, max.260 HB |
For high-speed inserts up to 54 HRC. |
| 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. |
Annealed, max.230 HB |
|
| Corrosion resistant steels |
| 2083 ISO-B |
X42Cr13 |
420 |
Z 40 C 14 |
Corrosion-resistant mould steel with good polishability, good workability, hardenability 50-54 HRC. |
Annealed, max.230 HB
Tempered on request |
Mould inserts |
| 2085 |
X33CrS16 |
~422 + S |
~Z 33 CS 16 |
Corrosion-resistant mould steel with very good machining properties. |
Tempered to 265-310 HB
950-1050 N/mm2 * |
Mould fittings and mould frames. |
| 2316 ISO-B mod. |
~X36CrMo17 |
~422 |
Z 35 CD 17 |
Mould steel with very good corrosion resistance, polishable, also hardenable to 50 HRC. |
Tempered to 265-310 HB
950-1050 N/mm2 * |
Mould inserts, slit dies, profile, sizing tools, blowing moulds, extrusion dies. |
| Maraging steel |
| 2709 |
X3NiCoMoTi18-9-5 |
Maraging 300 |
Z 2 NKD
18-09 |
This steel permits simple, non-warping heat treatment with precipitation hardening at 480oC after finish machining, hardenability up to 55 HRC. |
Solution annealed, 300 HB approx 1000 N/mm2 * |
Injection moulding tools subject to high compression stress, part inserts, cores & ejectors. |
| Nitriding steels |
| 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. |
Tempered to 280-325 HB
950-1100 N/mm2 * |
|
| 7735 |
14CrMoV6-9 |
|
20 CDV 5.07 |
CrMoV nitriding steel with high toughness and thermal strength & weldable. |
Tempered to 265-310 HB
950-1050 N/mm2 * |
|
| 8519 |
31CrMoV9 |
|
32 CDV 12 |
CrMoV nitriding steel for higher wear exposure. |
Tempered to 265-310 HB
950-1050 N/mm2 * |
|
| 8550 |
34CrAINi7 |
|
34 CAND 7 |
Aluminium alloyed standard nitriding steel surface hardness after nitriding 1,000 HV approx. |
Tempered to 237-297 HB
800-1000 N/mm2 * |
Extruder tools such as screws and cylinders & plastifying tools. |
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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. |
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