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SKI extends their services to customer and application-specific consultation as well as advice on product development. Deciding on the perfect tool steel SKI begins by consulting our plastic mould steel specialists. The demands on the final product are defined by the plastic mould strain and the demands on the required steel grade.
  The moulds used for plastic processing are very diverse in their functionality and the demands made on them. The correct choice and treatment of the steel grade are decisively influential on the quality and resulting profitability of plastic production. So as to ensure the client's demands are met, we rely on a highly experienced group of specialists in the steels-for-plastic-moulding area. Together with the mould manufacturers, they constitute a perfectly coordinated team to determine which steel grade and quality are most appropriate to the individual profile demands as characterized by the final plastic product.




» Overview of Plastic mould tool steel
» Chemical Composition
» Group specific property comparison

Overview of Plastic Mould Tool Steel

Steels for plastic moulding Injection moulding Compression moulding Extrusion Blow moulding Large moulds Mould frames Extruders
Formadur 2083 bullet bullet bullet        
Formadur 2083 Superclean bullet bullet bullet        
Formadur 2085 bullet bullet       bullet  
Formadur 2162 bullet bullet          
Formdaur 2190 Superclean bullet bullet          
Formadur 2311 bullet bullet   bullet bullet    
Formadur 2312 bullet bullet     bullet bullet  
Formadur 2316 bullet bullet bullet bullet bullet   bullet
Formadur 2316 Superclean bullet bullet bullet bullet bullet   bullet
Thermodur 2343 EFS bullet bullet         bullet
Thermodur 2343 EFS Superclean bullet bullet         bullet
Thermodur 2344 EFS bullet bullet         bullet
Thermodur 2344 EFS Superclean bullet bullet         bullet
Formadur 2361 bullet bullet       bullet
Cryodur 2357 bullet bullet          
Cryodur 2363 bullet bullet          
Cryodur 2379 bullet bullet         bullet
Cryodur 2709 bullet bullet          
Formadur 2711 bullet bullet     bullet    
Formadur 2738 bullet bullet   bullet bullet    
Formadur 2764 bullet bullet          
Cryodur 2767 bullet bullet          
Cryodur 2842 bullet bullet          
Formadur 2891             bullet
Cryodur 2990 bullet bullet         bullet
Rapidur 3343 bullet bullet          
Formadur PH X Superclean bullet bullet bullet bullet     bullet
Formadur PH 42 Superclean bullet bullet bullet bullet      
Formadur 320 bullet bullet   bullet bullet bullet  
Corroplast bullet bullet   bullet   bullet  
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Chemical composition
Material DIN- description Chemical composition (guide values in %)
    C Si Mn Cr Mo S Ni V
Formadur 2083 X40Cr14 0.40 - - 13.00 - - - -
Formadur 2085 X33CrS16 0.33 - - 16.00 - 0.05 0.50 -
Formadur 2311 40CrMnMo7 0.40 - 1.50 1.90 0.20 - - -
Formadur 2312 40CrMnMoS8-61) 0.40 0.35 1.50 1.90 0.20 0.05 - -
Formadur 2316 X38CrMo15 0.36 - - 16.00 1.20 - - -
Formadur 2738 40CrMnNiMo8-6-4 0.40 - 1.50 1.90 0.20 - 1.00 -
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Group specific property comparison
Brand Wear resistance Corrosion resistance Tough
ness		 Polish
ability		 Texturing properties Welda
bility		 Machin
ability		 Nitrid
ability
Formadur 2083 ++ ++ + ++ ++ + ++ +
Formadur 2083 Superclean ++ ++ ++ ++ ++ + ++ +
Formadur 2085 + ++ + ο ο + +++ +
Formadur 2162 ++ + + +++ +++ ++ +++ +
Formadur 2190 Superclean ++ ++ + +++ ++ + ++ ++
Formadur 2311 + + + + ++ ++ ++ ++
Formadur 2312 + + + ο ο + +++ ++
Formadur 2316 + ++ + ++ ++ ++ ++ +
Formadur 2316 Superclean + ++ + ++ ++ ++ ++ +
Thermodur 2343 EFS ++ + ++ ++ ++ ++ ++ ++
Thermodur 2343 EFS Superclean ++ + +++ +++ ++ ++ ++ ++
Thermodur 2344 EFS ++ + ++ + ++ ++ ++ ++
Thermodur 2344 EFS Superclean ++ + ++ ++ ++ ++ ++ ++
Cryodur 2357 ++ + ++ ++ ++ + ++ -
Formadur 2361 +++ ++ + + ο ο + +++
Cryodur 2363 ++ + + + + ο ++ +
Cryodur 2379 +++ + ο ο ο ο + +
Cryodur 2709 ++ + +++ +++ +++ +++ ++ ++
Formadur 2711 + + + + ++ ++ ++ ++
Formadur 2738 + + + + ++ ++ ++ ++
Formadur 2764 ++ + ++ +++ +++ ++ ++ -
Cryodur 2767 ++ + ++ ++ ++ ++ ++ -
Cryodur 2842 ++ + + ++ ++ ο ++ -
Formadur 2891 +++ + ++ ο ο ο ++ +++
Cryodur 2990 +++ + + + ο ο ++ +
Rapidur 3343 +++ + + o + o + +
Formadur PH X Superclean + ++++ +++ ++++ +++ ++++ ++ ++
Formadur PH 42 Superclean + + ++ ++++ +++ ++++ ++ ++
Formadur 320 + + + ++ +++ +++ +++ ++
Corroplast + ++ ++ + + ++++ ++++ ++
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Formadur   2083 / 2083 Superclean
X40Cr14   C 0.40   Cr 13.00
Steel properties   Corrosion-resistant, good polishability. We recommend the use of Formadur 2083 Superclean for the highest demands on polishability.
Standards   AISI 420  AFNOR Z40C14

Formadur   2085
 X33CrS16   C 0.33   Cr 16.00  S 0.05  Ni 0.50
Steel properties   Pre-hardened corrosion-resistant mould frame steel, hardness in as-delivered condition of 280 to 325 HB. Improved machinability in comparison to Formadur 2316.
Standards   AISI ~420FM
Applications   Mould frames, components, plastic moulds.

Formadur   2311
 40CrMnMo7   C 0.40   Mn 1.50  Cr 1.90  Mo 0.20
Steel properties   Pre-hardened plastic mould steel, hardness in as-delivered condition 280 to 325 HB. Good machinability, suitable for texturing, better polishability than Formadur 2312.
Standards   AISI P20

Formadur   2312
40CrMnMoS8-61)   C 0.40   Si 0.35  Mn 1.50  Cr 1.90  Mo 0.20  S 0.05
Steel properties   Quenched and tempered plastic mould steel with a hardness of 280 to 325 HB in as-delivered condition. Improved machinability in comparison with Formadur 2311. Polishable.
Standards   AISI P20+S

Formadur   2316 / 2316 Superclean
X38CrMo16   16.00 Mo 1.20
Steel properties   Increased corrosion resistance in comparison to Formadur 2083, good polishability. Usually this steel grade is supplied in a quenched and tempered condition with a working hardness of approx. 300 HB.
Standards   AISI 420mod

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