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Plastic Mould Steels
Increasing use of plastic products expands
the use of steels for plastic mould applications. Manufacturers of plastic
products need dies with a long operation period that will retain their
high standard quality on a continuous basis. When selecting steel for
plastic moulds, the following major factors are of vital importance :
type of plastics, plastic moulding method, size and shape of product and/or
die, size of series, demanded product surface quality, operation mode,
preparation of dies. Steels for plastic moulds need to have the following
characteristics : high wear and corrosion resistance, hardness, toughness,
good polishability, surface texture properties, machinability, minimal
dimensional changes in heat treatment.
The properties of this category steel are:
|
Grades |
Average Chemical Compositon % |
|
Aisi No. |
Werk No. |
Ravne Grade |
C. |
Si. |
Mn. |
Cr. |
Mo. |
V. |
W. |
Co. |
Oths. |
| ~D2 |
1.2379 |
OCR12VM |
1.55 |
0.25 |
0.30 |
11.5 |
0.70 |
1.0 |
|
|
|
| Applications : Cutting dies sensitive to breakage, thread rolling dies, reamers, sockets. High performance cutting tools, stamping, wood working, moulding tools for plastics, blanking & punching for ceramics & pharmaceutical industries. |
|
Grades |
Average Chemical Compositon % |
|
Aisi No. |
Werk No. |
Ravne Grade |
C. |
Si. |
Mn. |
Cr. |
Mo. |
V. |
W. |
Co. |
Oths. |
| 440C |
1.4125 |
PK348 |
1.0 |
1.0 |
1.0 |
16.5 |
0.5 |
|
|
|
|
| Applications : For hardening, wear resistance. Products with highest hardness & wear resistance, knives, nozzles, medical instruments, ball bearings. |
|
|
Average Chemical Compositon % |
|
Aisi No. |
Werk No. |
Ravne Grade |
C. |
Si. |
Mn. |
Cr. |
Mo. |
V. |
W. |
Co. |
Oths. |
| 420 |
1.2083 |
PK4EX |
0.44 |
1.0 |
1.0 |
13.0 |
|
|
|
|
|
| Applications : Moulds for processing plastics with corrosive acting synthetic & abbarassive fillers, dies for artificial resins. Cutting tools, all types of knives, shears & surgical instruments. |
|
Grades |
Average Chemical Compositon % |
|
Aisi No. |
Werk No. |
Ravne Grade |
C. |
Si. |
Mn. |
Cr. |
Mo. |
V. |
W. |
Co. |
Oths. |
| P20 |
1.2312 |
UTOPN |
0.40 |
0.40 |
1.50 |
1.90 |
0.20 |
|
|
|
|
| Applications : Tools for plastic processing as well as synthetic plastic processing, moulds for pressure diecasting recipient sleevs, brake dies. Also used for large moulds (truck bumpers for instance). |
|
Grades |
Average Chemical Compositon % |
|
Aisi No. |
Werk No. |
Ravne Grade |
C. |
Si. |
Mn. |
Cr. |
Mo. |
V. |
W. |
Co. |
Oths. |
| P20 |
1.2311 |
UTOPNEX |
0.40 |
0.25 |
1.5 |
1.9 |
0.2 |
|
|
|
|
| Applications : Injection moulds of medium & large size, high deformation resistance with good polishability. Suitable for bottle crates, TV housing, frames, fridge door, buckets etc.. |
|
Grades |
Average Chemical Compositon % |
|
Aisi No. |
Werk No. |
Ravne Grade |
C. |
Si. |
Mn. |
Cr. |
Mo. |
V. |
W. |
Co. |
Oths. |
| P20 |
1.2738 |
UTOPNIN |
0.40 |
0.25 |
1.5 |
1.9 |
0.2 |
|
|
|
Ni 1.0 |
| Applications : Synthetic plastic moulding dies for large moulds for bigger diametres & blow moulds. Better through hardening properties for cross sections of 400 mm & more.. |
|
Grades |
Average Chemical Compositon % |
|
Aisi No. |
Werk No. |
Ravne Grade |
C. |
Si. |
Mn. |
Cr. |
Mo. |
V. |
W. |
Co. |
Oths. |
| H13 |
1.2344 |
UTOPMO2 |
0.40 |
1.05 |
0.40 |
5.15 |
1.35 |
1.0 |
|
|
|
| Applications : Pressure casting dies & metal extrusion tools for processing light metals, forging dies, moulds, screws & barrels for plastic processing, nitrided ejectors, hot shear blades. |
|
Grades |
Average Chemical Compositon % |
|
Aisi No. |
Werk No. |
Ravne Grade |
C. |
Si. |
Mn. |
Cr. |
Mo. |
V. |
W. |
Co. |
Oths. |
|
1.2316 |
PK335 |
0.38 |
1.0 |
1.0 |
16.0 |
1.15 |
|
|
|
Ni 1.00 |
| Applications : Dies for pressing chemically agressive compounds. Spindles, belts, pulp engines, cutters, valves, components for fittings for temperature upto 600 degree. |
Next > SPECIAL STEELS
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