Injection Moulding
Injection Moldings- the most commonly used method of producing plastic parts. It is a fast process and it is used to produce large numbers of identical items from high precision engineering components to disposable consumer goods. Examples are plastic parts that we find around us in our everyday lives, consumer goods like packaging of various kinds, and more technical items like mobile phones or electronic components.
Plastic as an engineering material is also increasing in importance in the automotive industry as it can:
- help to make the car lighter, thus reducing fuel demand and greenhouse gas emissions
- contribute to the quicker introduction of design innovations and changes
- provide single mould components which have helped to decrease vehicle assembly times
- improve the functionality of the cars as more technical polymers are developed
The moulds used for injection moulding are often extremely complicated and expensive. This is why the material used for the moulds often need to have unique characteristics for demanding applications. It is crucial to choose the correct steel grade for each specific type of mould. Different mould materials can be used depending on the number of shots, the plastic material being used, the size of the mould and the required surface finish. Several basic mould material properties must be considered: strength and hardness, toughness, wear resistance, cleanliness, corrosion resistance and thermal conductivity.
Uddeholm has long been leading the innovation of new steel grades to secure the requisite properties. Our ESR materials for high surface finish demands are renowned in the industry, as is our Uddeholm Stainless Concept, comprising corrosion resistant grades for reduced mould maintenance.

Alumec 89
80%
Corrosion resistance
10%
Wear resistance
50%
Polishability
80%
Toughness
Uddeholm AM Corrax
100%
Corrosion resistance
50%
Wear resistance
75%
Polishability
80%
Toughness
Uddeholm Coolmould
80%
Corrosion resistance
40%
Wear resistance
50%
Polishability
40%
Toughness
Uddeholm Corrax
100%
Corrosion resistance
50%
Wear resistance
70%
Polishability
70%
Toughness
Uddeholm Elmax SuperClean
60%
Corrosion resistance
90%
Wear resistance
80%
Polishability
40%
Toughness
Uddeholm Impax Supreme
20%
Corrosion resistance
30%
Wear resistance
50%
Polishability
90%
Toughness
Uddeholm Mirrax 40
70%
Corrosion resistance
40%
Wear resistance
80%
Polishability
60%
Toughness
Uddeholm Mirrax ESR
90%
Corrosion resistance
70%
Wear resistance
90%
Polishability
60%
Toughness
Uddeholm Nimax
20%
Corrosion resistance
40%
Wear resistance
70%
Polishability
100%
Toughness
Uddeholm Nimax ESR
20%
Corrosion resistance
40%
Wear resistance
90%
Polishability
100%
Toughness
Uddeholm Orvar Supreme
30%
Corrosion resistance
70%
Wear resistance
30%
Polishability
60%
Toughness
Uddeholm Polmax
80%
Corrosion resistance
70%
Wear resistance
100%
Polishability
50%
Toughness
Uddeholm Rigor
20%
Corrosion resistance
90%
Wear resistance
50%
Polishability
30%
Toughness
Uddeholm Stavax ESR
80%
Corrosion resistance
70%
Wear resistance
90%
Polishability
50%
Toughness
Uddeholm Unimax
30%
Corrosion resistance
80%
Wear resistance
80%
Polishability
60%
Toughness
Uddeholm Vanadis 4 Extra SuperClean
20%
Corrosion resistance
90%
Wear resistance
80%
Polishability
50%
Toughness
Uddeholm Vanax SuperClean
100%
Corrosion resistance
75%
Wear resistance
80%
Polishability
60%
Toughness
Uddeholm Vidar 1 ESR
30%
Corrosion resistance
60%
Wear resistance
80%
Polishability
80%
Toughness
Contact us for further information