Plastic mould steel / SIMOLD

The SIMOLD brand includes tool steels for plastic moulding

SIMOLD tool steel is intended for the manufacture of different moulds for plastics, synthetic resins and rubber moulding.

Backing parts of plastic injection moulding tools are made of SIMOLD tool steel alloyed with sulphur, added to increase their machinability. SIMOLD brand steel, alloyed with chromium (above 12% Cr), is characterised by its excellent corrosion resistance, thus placing this in the category of so-called corrosion-resistant tool steels.

The SIMOLD brand of tool steel is installed in a wide variety of tools within an extremely broad industrial spectrum. During use they are exposed to pressure, wear and even corosion under certain conditions. Extreme (long) durability confirms the excellent quality of our SIMOLD brand steel.

Large-scale production of plastic, synthetic resin and rubber requires a homogeneous and uniform tool quality provided by SIMOLD tool grade steel.

The SIMOLD group of steel is heat treated to the required working range of hardness, which significantly shortens the time it takes to make these tools since no final heat treatment is required. There is also no risk of dimensional changes of tools and of cracking due to heat treatment.

The main features of the SIMOLD brand tool steel for plastic moulding:

  • Microcleanliness – high purity steel
  • Can be polished
  • Machinability (sulphur alloyed steel)
  • Temperature resistance
  • Wear resistance
  • Dimensional stability
 W. NR.CSiMnCrMoNiVW  
SIMOLD 20831.20830,46max 1,0max 1,013,5/////55-57 HRC
SIMOLD 20851.20850,350,40,4516////$ 0,07045-51 HRC
SIMOLD 23111.23110,40,31,451,950,2////52 HRC
SIMOLD 23111.23120,40,41,51,90,2///$ 0,07051 HRC
SIMOLD 27381.27380,40,31,41,90,21///52 HRC
Get more detailed information about SIMOLD grades on SIJ STEEL SELECTOR
View SIMOLD Gallery