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Rulon Bearings

Bohler-Uddeholm P20 PREMIUM MODIFIED Pre-hardened Mold Steel
Categories: Metal; Ferrous Metal; Alloy Steel; Chrome-moly Steel; Tool Steel; Mold Steel

Material Notes: Cr-Mo alloyed steel

P20 Modified offers the following benefits:

  • No hardening risks
  • No hardening costs
  • Time saving, e.g. no waiting for heat treatment
  • Lower tool cost (e.g. no distortion to rectify)
  • Modifications easily carried out
  • Can be subsequently nitrided to increase surface wear resistance or locally flame hardened to reduce surface damage.
      Manufactured to consistently high quality standards, P20 modified has good polishing and texturing properties, good machinability and uniformed hardness.
      Heavier sections are supplied premachined which offers the following advantages compared with unmachined material:
      • Saving of weight
      • Non-decarburized surface
      • Exact nominal size (plus tolerance)
      • Less machining
      • Absence of scale minimizes machine and tool wear
      Applications:
      • For large injection and compression molds
      • Extrusion dies for thermoplastics
      • Blow mold
      • High strength holders, plates and bolsters
      • Forming tools, press-brake dies (possibly flame hardened or nitrided)
      • Aluminum die casting prototype dies
      • Zinc die casting dies
      • Long run die shoes
      • Structural components, shafts.

Key Words: AISI P20 modified
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Physical PropertiesMetricEnglishComments
Density 7.81 g/cc0.282 lb/in³hardened to 310 HB
 7.75 g/cc
@Temperature 199 °C
0.280 lb/in³
@Temperature 390 °F
hardened to 310 HB
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 285 - 340285 - 340Hardened and tempered (Delivery condition)
Tensile Strength, Ultimate 951 - 1100 MPa138000 - 160000 psihardened to 300 HB
Tensile Strength, Yield >= 696 MPa>= 101000 psihardened to 300 HB
Elongation at Break >= 12 %>= 12 %hardened to 300 HB
Modulus of Elasticity 205 GPa29700 ksi(hardened to 310 HB)
 200 GPa
@Temperature 199 °C
29000 ksi
@Temperature 390 °F
hardened to 310 HB
 
Thermal PropertiesMetricEnglishComments
CTE, linear 12.6 µm/m-°C
@Temperature 199 °C
7.00 µin/in-°F
@Temperature 390 °F
hardened to 310 HB
Specific Heat Capacity 0.460 J/g-°C
@Temperature 20.0 °C
0.110 BTU/lb-°F
@Temperature 68.0 °F
hardened to 310 HB
Thermal Conductivity  29.0 W/m-K
@Temperature 20.0 °C
201 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
hardened to 310 HB
 29.5 W/m-K
@Temperature 199 °C
205 BTU-in/hr-ft²-°F
@Temperature 390 °F
hardened to 310 HB

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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Schmolz + Bickenbach P-20 Modified Plastic Mold Steel
Bohler-Uddeholm IMPAX® P20 Hot Work Tool Steel

NBUCOR35 / 15504

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