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Mould cores and cavities
40 HRC pre-hardened grade designed for the plastic mold industry with stringent requirements.
High resistance to wear, high toughness, good polishing properties.
Thanks to a special solidification process, extreme low level of segregation are achieved even at mid-thickness. This grade is thus particularly indicated for high surface finish such as optical polishing (optics for automotive) or complex texturing (logos on dashboard).
For which applications
Plastic injection or compression mould cores and cavities with high quality finish, compression dies under high mechanical and thermal stresses.
Thermoplastics (PE, PS, PP), LFT, thermosetting plastics, ABS, transparent melts.
Typical values (weight%).
Superplast® Premium is delivered quenched and tempered to 330 – 370 HB (35 – 39 HRC) or 350-380 HB (37-41 HRC).
|Hardness||Rp 0.2 Yield strength||Rm Tensile strength||Elongation||Reduction of area||KCV 20°C||Elastic modulus|
Typical values – thickness 400 mm – quenched and tempered
Thanks to a specific solidification process, Superplast® Premium steels exhibit a high homogeneity in both hardness and metallurgical structure (bainite + martensite) through the whole block, up to 600 mm thickness. This aims at improved and reproducible performances in polishing, texturing and global surface aspect.
Thanks to the absence of segregation, texturing is not limited to easy patterns anymore. SP Premium is suitable for geometrical and other complicated patterns (logos for instance).
Superplast Premium can be polished up to SPI A2 (3-6µm, mirror polishing).
Apparition of orange peel or waves is limited thanks to the absence of segregation.
Typical delivery sizes
|150-600 mm||1000-2000 mm|
For more technical details :