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Bohler-Uddeholm P20 PREMIUM MODIFIED Pre-hardened Mold Steel

Category Metal , Ferrous Metal , Alloy Steel , Chrome-moly Steel , Tool Steel , Mold Steel
Manufacturer Bohler-Uddeholm
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Bohler-Uddeholm P20 PREMIUM MODIFIED Pre-hardened Mold Steel.pdf
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Material Notes:
Cr-Mo alloyed steelP20 Modified offers the following benefits:No hardening risksNo hardening costsTime saving, e.g. no waiting for heat treatmentLower tool cost (e.g. no distortion to rectify)Modifications easily carried outCan 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 weightNon-decarburized surfaceExact nominal size (plus tolerance)Less machiningAbsence of scale minimizes machine and tool wearApplications:For large injection and compression moldsExtrusion dies for thermoplasticsBlow moldHigh strength holders, plates and bolstersForming tools, press-brake dies (possibly flame hardened or nitrided)Aluminum die casting prototype diesZinc die casting diesLong run die shoesStructural components, shafts.
Physical Properties Metric English Comments
Density 7.81 g/cc
0.282 lb/in³
hardened to 310 HB
7.75 g/cc

@Temperature 199 °C
0.280 lb/in³

@Temperature 390 °F
hardened to 310 HB
Mechanical Properties Metric English Comments
Hardness, Brinell 285 - 340
285 - 340
Hardened and tempered (Delivery condition)
Tensile Strength, Ultimate 951 - 1100 MPa
138000 - 160000 psi
hardened to 300 HB
Tensile Strength, Yield >= 696 MPa
>= 101000 psi
hardened to 300 HB
Elongation at Break >= 12 %
>= 12 %
hardened to 300 HB
Modulus of Elasticity 205 GPa
29700 ksi
(hardened to 310 HB)
200 GPa

@Temperature 199 °C
29000 ksi

@Temperature 390 °F
hardened to 310 HB
Thermal Properties Metric English Comments
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
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