Tool Steel
We deliver the following high quality tool steels
from Messrs. Buderus Edelstahl GmbH, Wetzlar, Germany.
Engineering Steels
The world-renowned ISO-B technology ensures highly
clean steel with excellent properties
Open Die Forgings
Our market leadership is possible due to our specialized
Production facilities - all available in-house.
Rolled Steel
The world-renowned ISO-B technology ensures highly
clean steel with excellent properties.
Distribution Center
We are the authorized single source distribution outlet for tool
and Engineering steels in India from Buderus Edelstahl GmbH.

Profile

We are the Business associates in India for the last five decades of the well renowned German Steel producer Buderus Edelstahl GmbH, representing and marketing their entire product range. This historic relationship was officially contracted on 6th June 1958 which means that we have more than five decades of association running successfully.

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Distribution Centers

The distribution centers are set up in Chennai (since 1994) Pune (since 2004) Ludhiana (since 2008)

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Products

we recommend the following die steels for forging application

Die weigth Hammer dies Press dies Die holders
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

 
* Please attend in any case the general restrictions and recommendations given in Buderus die steel brochure
Buderus Edelstahl recommends the following Mould Steels for different applications:

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 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
aa950-1100 N/mm2 *
Dies for compression and injection tools, holding blocks production for dimensions ≥400 mm thick.
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.
aa 950-1100 N/mm2 *
High hard: THRUHARD SUPREME HH Tempered to 310-355 HB
aa1050-1200 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
aa950-1100 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
aa950-1100 N/mm2 * or
to 355-415 HB
aa1200-1400 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
aa950-1050 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
aa950-1050 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 aa1000 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
aa950-1100 N/mm2 *
 
7735 14CrMoV6-9   20 CDV 5.07

CrMoV nitriding steel with high toughness and thermal strength & weldable.

Tempered to 265-310 HB
aa950-1050 N/mm2 *
 
8519 31CrMoV9   32 CDV 12

CrMoV nitriding steel for higher wear exposure.

Tempered to 265-310 HB
aa950-1050 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
aa800-1000 N/mm2 *
Extruder tools such as screws and cylinders & plastifying tools.
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.
Buderus Edelstahl recommends following Hot Working Steels
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
Buderus Edelstahl recommends the following Engineering Steel for different applications:
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 --