We are the leading supplier of OPEN DIE FORGED, HEAT TREATED AND MACHINED PARTS FOR APPLICATION in Turbine shafts, Generator shafts, Armature shafts, Forgings for gas turbines, Rings, Power machinery construction, Hot and Cold back-up and work rolls for steel plants, Pipe moulds for centrifugal casting of pipes, cement plants and many more.
Our market leadership is possible due to our specialized Production facilities - all available in-house.
Our state of the art Steel Plant produces highly pure melts using our world-renowned ISO-B technology Ingots up to 190 tons are produced for further forging.
The Forge Shop using the state of the art CAF technology helps us in delivering accurate forging dimensions every time. The idea behind forging is not only to give shape to the cast ingots but to ensure re-crystallization of the cast structure and good core compression., which forms the base for good mechanical values.
After Forging, the parts are heat treated in our state of the Heat treatment furnaces and later Machined to the customer requirement
Die weigth | Hammer dies | Press dies | Die holders |
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Small (max. 500 kg) | 2714 ISO-B |
2344 ISO-B / 2365 ISO-B / 2367 ISO-B | 2714 ISO-B |
Medium (max. 3000 kg) | 2714 ISO-B 2714 ISO-B MOD |
2344 ISO-B / 2367 ISO-B |
2714 ISO-B contour hardened |
Large and / or crack susceptible | 2714 ISO-B 2714 ISO-B MOD (+ contour hardened) |
2714 ISO-B / 2344 ISO-B |
2714 ISO-B contour hardened |
Challenge for further material developments |
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. |
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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 ![]() |
Dies for compression and injection moulding tools less than 400mm thick |
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2738 EFFICIENT | ~40CrMnNiMo8-6-4 | ~P 20 + 0.5%Ni | ~40 CMND 8 | Properties as for 2311 ISO-BM, but reliable penetration hardening-characteristics for large dimensions 600 mm thick | Tempered to 280-325 HB 950-1100 N/mm2 * | Dies for compression and injection tools, holding blocks production for dimensions ?400 mm thick < 600 mm 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 ![]() |
Dies for compression and injection tools, holding blocks production for dimensions ≥400 mm thick. |
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THRUHARD SUPREME HH | 26MnCrNiMo6-5-4 | Pre-hardened mould steel for the largest dimensions, grain reliable, very good polishability, good weldablity, good machinability, high thermal conductivity. |
Normal hardness: THRUHARD SUPREME Tempered to 280-325 HB. ![]() High hard: THRUHARD SUPREME HH Tempered to 310-355 HB ![]() |
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 |
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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 ![]() |
Cores for compression and injection moulding tools with no surface requirements and low mechanical stress mould assemblies, holding blocks subject to low stress, prototyping |
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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 ![]() to 355-415 HB ![]() | 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. |
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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. |
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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. |
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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. |
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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 ![]() |
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 ![]() |
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 ![]() |
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 ![]() |
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7735 | 14CrMoV6-9 | 20 CDV 5.07 | CrMoV nitriding steel with high toughness and thermal strength & weldable. |
Tempered to 265-310 HB ![]() |
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8519 | 31CrMoV9 | 32 CDV 12 | CrMoV nitriding steel for higher wear exposure. |
Tempered to 265-310 HB ![]() |
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8550 | 34CrAINi7 | 34 CAND 7 | Aluminium alloyed standard nitriding steel surface hardness after nitriding 1,000 HV approx. |
Tempered to 237-297 HB ![]() |
Extruder tools such as screws and cylinders & plastifying tools. | ||
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Steel group | Material Number | Code designation to DIN | DIN analysis Figures in % |
Material characteristic | Important material data | ||||||||||||||
AC1 | AC3 | Ms | Hardening temperature | Annealing temperature | Thermal conductivity | ||||||||||||||
C | Si | Mn | P | S*** | Cr | Ni | Mo | V | W | oC | oC | oC | oC | oC | W/(mK at 500 oC) | ||||
High alloy CrMov hot working steels containing special carbide | |||||||||||||||||||
2. | 2344 ISO-B |
X40CrMov8-1-1 | 0,35- 0,42 |
0,80- 0,120 |
0,25- 0,50 |
≤ 0,030 |
≤ 0.003 |
4,80- 5,50 |
1,20- 1,50 |
0.85- 1.15 |
Hot working steel with high heat resistance, hardness retention and wear resistance |
855 | 925 | 300 | 1040 | 820 | 27,0 | ||
2360 ISO-B* |
X48CrMoV8-1-1 | 0,45- 0,50 |
0,70- 0,90 |
0,35- 0,45 |
≤ 0,020 |
≤ 0.003 |
7,30- 7,80 |
1,30- 1,50 |
1,30- 1,50 |
As 2344 ISO-B, but even better hardness retention and wear resistance, highly temperature resistant, good nitriding qualities |
842 | 951 | 360 | 1080 | 820 | 25,0 | |||
2365 ISO-B |
32CrMoV12-28 | 0,28- 0,35 |
0,10- 0,40 |
0,15- 0,45 |
≤ 0,030 |
≤ 0.003 |
2,70- 3,20 |
2,50- 3,00 |
0,40- 0,70 |
Hot working steel with good toughness, suitable for high temperature stress and alternating stress, tolerates water cooling |
790 | 875 | 350 | 1040 | 780 | 34,0 | |||
2367 ISO-B |
X38CrMoV5-3 | 0,35- 0,40 |
0,30- 0,50 |
0,30- 0,50 |
≤ 0,030 |
≤ 0.003 |
4,80- 5,20 |
2,70- 3,20 |
0,40- 0,60 |
As 2344 ISO-B, but greater heat resistance and hardness retention, high thermal endurance, good wear resistance |
785 | 985 | 240 | 1060 | 780 | 34,8 | |||
2606 ISO-B* |
X37CrMoW5-1 | 0,32- 0,40 |
0,90- 1,20 |
0,30- 0,60 |
≤ 0,035 |
≤ 0.003 |
5,00- 5,60 |
1,30- 1,60 |
0,15- 0,40 |
1,20- 1,40 |
Hot working steel with very good heat resistance, high hardness retention and good toughness, can be water cooled to a limited extent |
810 | 885 | 300 | 1020 | 800 | 28,0 |
Mat.-No. | EN/DIN - designation |
Vorschrift Regulation | AFNOR | AISI | material charakteristics | Delivered condition | Application | Analyse (mass%) | ||||||||
C | Si | Mn | P | S | Cr | Ni | Mo | V | ||||||||
7131 | 16MnCr5 | EN 10084 | 16 MC 5 | -- | case hardenable, suitable for upsetting | annealed | gears | 0,14-0,19 | max.0,4 | 1,0-1,3 | max.0,035 | max.0,035 | 0,8-1,1 | -- | -- | -- |
6580 | 30CrNiMo8 | EN 10083 SEW 550 |
30 CND 8 | suitable for quenching and tempering | hardened and tempered to 1,100-1,250 MPa | mechanical engineering | 0,26-0,33 | max.0,4 | 0,3-0,6 | max.0,035 | max.0,035 | 1,8-2,2 | 1,8-2,2 | 0,30-0,50 | -- | |
6582 | 34CrNiMo6 | EN 10083 SEW 550 |
34 CND 6 | -- | suitable for quenching and tempering | annealed | mechanical engineering | 0,3-0,38 | max.04 | 0,5-0,7 | max.0,035 | max.0,035 | 1,4-1,7 | 1,4-1,7 | 0,15-0,3 | -- |
6959 | 35NiCrMoV12-5 | -- | -- | -- | suitable for quenching and tempering | hardened and tempered to 1,100-1,250 MPa | mechanical engineering | 0,3-0,4 | 0,15-0,35 | 0,4-0,7 | max.0,015 | max.0,015 | 1,0-1,4 | 2,5-3,5 | 0,35-0,6 | 0,08-0,2 |
6981 | 21CrMoNiV4-7 | -- | -- | -- | elevated temperature resistant | hardened and tempered | mechanical engineering | 0,17-0,25 | 0,15-0,35 | 0,35-0,85 | max.0,03 | max.0,035 | 0,9-1,2 | 0,2-0,8 | 0,65-0,8 | 0,25-0,35 |
7225 | 42CrMo4 | EN 10083 SEW 550 |
40 CD 4 | 4140 | suitable for quenching and tempering | hardened and tempered | turbine shafts/screws | 0,38-0,45 | max.0,4 | 0,6-0,8 | max.0,035 | max.0,035 | 0,9-1,2 | -- | 0,15-0,30 | -- |
7709 | 21CrMoV5-7 | En 10269 | -- | -- | elevated temperature resistant | hardened and tempered | turbine shafts/screws | 0,17-0,25 | max.0,4 | 0,4-0,8 | max.0,025 | max.0,03 | 1,2-1,5 | -- | 0,55-0,8 | 0,25-0,35 |
7735 | 14CrMoV6-9 | -- | 20 CDV 5 7 | -- | nitriding steel with high toughness and thermal strength, weldable, high purity, surface hardness after nitriding 750-900 HV-5 approx | hardened and tempered to 900-1,050 MPa | extrusion tools | 0,11-0,17 | max.0,25 | 0,8-1,0 | max.0,002 | max.0,015 | 1,25-1,5 | -- | 0,8-1,0 | 0,20-0,30 |
8519 | 31CrMoV9 | EN 10085 | 30 CDV 9 | -- | nitriding steel, surface hardness after nitriding 750-850 HV-S | annealed | mechanical engineering | 0,26-0,34 | max.0,4 | 04-0,7 | max.0,025 | max.0,03 | 2,3-2,7 | -- | 0,15-0,25 | 0,1-0,2 |
8550 | 34CrAINi7 | EN 10085 | 34 CAND 7 | -- | aluminium alloy standard nitriding steel, surface hardness after nitriding 900-1,150 HV-% approx | hardened and tempered | extrusion tools | 0,3-0,37 | max.0,4 | 0,4-0,7 | max.0,025 | max.0,03 | 1,5-1,8 | 0,85-1,15 | 0,15-0,25 | -- |