Engineering & Tool steels

Superplast®33 is a prehardened steel delivered in as quenched and double tempered condition with an excellent toughness and a high machinability for engineering components or molding applications. Dimensions Superplast® 33 is available in plates with thicknesses between 15 and 100 mm. For higher thicknesses, please contact us.

Chemical analysis

Typical values (weight%).

C Si Mn S Ni Cr Mo B
0.250 0.125 1.300 < 0.001 < 0.30 1.300 0.450 +

Mechanical properties

Hardness HBW
280 – 320
Toughness at room temperature in the transverse direction (J)
> 50
Typical value for a plate in 95 mm thick. At quarter thickness (J)
Tensile properties at room temperature in the transverse direction
Tensile strength (MPa) Yield strength (MPa) A (%)
900 – 1050 > 750 > 12
Typical value for a plate in 45 mm thick. (quarter thickness)
Tensile strength (MPa) Yield strength (MPa) A (%)
923 803 18

Delivery conditions

Superplast®33 is delivered quenched and double tempered at 560°C minimum ready to be used.
Typical delivery sizes

Manufacturing process Thicknes Width
Hot rolling 15 – 150 mm 1000 – 2000 mm

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Technical data and information are to the best of our knowledge at the time of publication. However, they may be subjected to some slight variations due to our ongoing research programmes. Therefore, we suggest that information be verified at time of enquiry or order. Furthermore, in service, real conditions are specific for each application. The data presented here are for the purpose of description only, and can be considered as guarantees only when written formal approval has been provided by our company. Industeel reserves the right to change its product range at any time without prior notice.