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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:

Ravne W. No. DIN AISI/Sae JIS
OCR 12 VM 1.2379 X 155CrVMo 12-1 ~D-2 ~SKD 11
PK348 1.4125 X 105CrMo 17 440 C SUS 440C
PK 4 EX 1.2083 X 42Cr 13 420 SUS 420 J2
UTOP N 1.2312 40 CrMnMoS 8-6 P-20  
UTOPNEX 1.2311 40 CrMnMo 7 P-20  
UTOPNIN 1.2738 40 CrMnNiMo 8-6-4 P-20  
UTOP MO2 1.2344 X 40CrMoV5-1 AISI H-13 SKD 61
PK335 1.2316 X 38CrMo16  

 

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. Click here for PDF File.

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. Click here for PDF File.

Grades
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. Click here for PDF File.

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). Click here for PDF File.

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. Click here for PDF File.

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. Click here for PDF File.

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. Click here for PDF File.

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. Click here for PDF File.

 



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