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  5. XPM ESU

XPM ESU

  • Izdelava kalupov
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0 CZK

Characteristics and suitability of use

Hardened steel to a value 38 - 42 HRC in ESU (ESR) quality. It is characterized by high toughness, wear resistance and good hot strength at working temperature. It is very suitable for texturing and is easy to machine and weld. Suitable for nitriding, hardness after nitriding 550 - 700 HV. The advantage is high homogeneity and cleanliness, therefore it is very suitable for polishing.

Use for the production of moulds for injection and pressing of plastics. Small, medium and large moulds, moulds inserts with a requirement for the highest surface quality. Applications e.g. transparent plastic parts, high gloss parts, car lights, car interior parts etc. Process temperature <250 °C.

Suitable as a variant for steel 1.2738 HH ESU (ESR).

Complete material data sheet for download

Chemical composition of steel XPM-ESU

Steel gradeChemical composition in %Hardness
soft annealedheat treated
CSiMnCrMoNiHB max.HRC max.
XPM-ESU0,300,301,551,350,701,00-52

Heat treatment of steel XPM-ESU

WayTemperature [°C]Procedure
Soft annealing71-740air
Hardening870-920oil, polymer
Tempering540-650air
Stress relieving500-530min. 30°C below tempering temp.
Pre-heating before welding300-330 
Nitriding450-530min. 30°C below tempering temp.
PVD-treating450-530min. 30°C below tempering temp.

Graph

 

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