| Product |
Material |
Usual
name |
State at delivery |
Characteristics |
For which tools ? |
For which plastics ? |
| General use steel |
 |
St 52 - 3 U |
E36-3 |
Rm = 490 - 630 N/mm2 |
Strutuctural steel
Low carbon content
Suitable for welding
Suitable for torch-cut |
Tool base plates
Special machine frame
Welded assembly |
|
| Unalloyed tool steel |
|
 |
1.1730 |
XC48 |
Normalised max. 223 HB |
Surface layer quench hardenable up to 55 HRc |
Structure parts
Mould frames and tools under light stress. Blow moulds. Base plates |
|
| Hardened and tempered steels for moulds |
|
1.2311 |
40 CMD 8 |
Hardened and tempered
Rm = 950 - 1050 N/mm2 |
Mould steels, economical machining, good polishing, graining and chromium plating capability. Used for thicknesses below 400 mm. Suitable for nitriding: surface layer (0.3 mm) 600 HV/3 minimum |
Cores and cavities for compression and injection moulding up to 400 mm thick |
Thermoplastics, large moulded pieces in ABS, thermoset resins |
|
1.2738 |
40 CMMD 8 |
Tempered
310 - 355 HB
~ Rm 1050 - 1200 N/mm2 |
Tool steel for the construction of moulds for plastics, particularly for large-scale projects.
- appropriate for mirror polishing and embossable
- good weldability
- good processibility
- resistance up to 1200 N/mm2
- appropriate for nitriding, hard chromium plating |
Large-scale tools for moulds for high stress plastic injection, for stand-off, for dashboards, seats, household bins, bottle racks, television selves, etc. |
|
|
1.2312 |
40 CMD 8 + S |
Hardened and tempered Rm = 950 - 1050 N/mm2 |
Mould steel with excellent machinability.
Not suitable for polishing, graining and hard chromium plating.
Steel suitable for nitriding, with surface hardness (0.3 mm) 600 HV/3 minimum |
Core parts.
Compression and injection moulding. |
Thermoset resins in compression moulding.
Thermoplastics ABS, SMC. |
|
|
1.2711 |
55NCDV 7 (NR) |
Hardened and tempered Rm = 1200 - 1400 N/mm2 |
Mould steel. Resistant to hot flow. High impact strength. Grainable. Suitable for mirror polishing and hard chromium plating.
High degree of purity.
Steel suitable for nitriding with surface hardeness (0.3 mm) 600 HV/3 minimum. |
Compression and injection moulding with high mechanical and thermal stress. Particular quality requirements such as mirror polishing. |
1.2711 transparent masses |
|
1.2711 + S |
55NCDV 7 + S |
Hardened and tempered Rm = 1200 - 1400 N/mm2 |
Mould steel. Resistant to hot flow. High impact strength. |
Compression and injection moulding with high mechanical and thermal stress. |
|
| Tool steels |
|
|
1.2343 |
Z 38 CDV 5 |
Annealing
max. 225 HB |
Hot working steel, wear resistant.
Hardness 50 HRc after hardening and tempering. Good nitriding suitability. Also usable for large dimensions. High degree of purity. |
Mould inserts. Moulds for high stress plastic injection. |
Thermoset resins.
Compound materials.
Thermoplastics.
|
|
|
1.2379 |
Z 160 CDV 12
|
Annealing
max. 250 HB |
Cold working steel. High wear resistance. Hardness 60-62 HRc. Suitable for inserts. Nitriding possible after special heat treatment. |
|
1.2767 |
45 NCD 16 |
Annealing
max. 260 HB |
Self-hardening steel with great dimensional stability. Very good tenacity.
Hardness 45-50 HRc. |
| Corrosion resistant steels |
|
1.2316 |
Z 35 CD 17 |
Hardened and tempered
Rm = 900 - 1050 N/mm2 |
Steel for moulds with excellent corrosion resistance. Suitable for polishing.
total resistance: 900-1050 N/mm2. |
Mould inserts.
Large plastic injection moulds |
Corrosive plastics.
Plastics with acid precipitation.
Thermoplastics, carbamidic resin, aminoaldehydic resin, PVC. |
|
1.2316 + S |
Z 35 CD 17 + S |
Hardened and tempered
Rm = 900 - 1050 N/mm2 |
Steel for moulds with excellent corrosion resistance. |
