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Schmolz + Bickenbach P-20 High Hard Plastic Mold Steel

Category Metal , Ferrous Metal , Tool Steel , Mold Steel
Manufacturer Schmolz + Bickenbach (Swiss Steel International)
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Schmolz + Bickenbach P-20 High Hard Plastic Mold Steel.pdf
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Material Notes:
Description: P-20 High Hard is an improved pre-hardened mold steel that has been specially designed for large plastic molds; Material is forged on a 5000 ton press assuring maximum deformation during the forging process; and Hardness loss in large cross sections is minimalCharacteristics: Improved polishability compared to P-20 modified; Excellent compressive strength; and Minimum hardness loss in large cross sectionApplications: Injection molds, Compression molds, Mold frames, Forming tools and Die holdersStress Relieving (Heat Treatment): 850°F-900°F hold 1 hr/in; Cooling: Air cool; Note: Large cross sections require accurate control of temperatures and timesInformation provided by Schmolz + Bickenbach
Physical Properties Metric English Comments
Density 7.86 g/cc
0.284 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell C 33

@Treatment Temp. 621 °C,
Time 7200 sec
 33

@Treatment Temp. 1150 °F,
Time 2.00 hour
35

@Treatment Temp. 593 °C,
Time 7200 sec
 35

@Treatment Temp. 1100 °F,
Time 2.00 hour
40

@Treatment Temp. 566 °C,
Time 7200 sec
 40

@Treatment Temp. 1050 °F,
Time 2.00 hour
43

@Treatment Temp. 538 °C,
Time 7200 sec
 43

@Treatment Temp. 1000 °F,
Time 2.00 hour
47

@Treatment Temp. 482 °C,
Time 7200 sec
 47

@Treatment Temp. 900 °F,
Time 2.00 hour
50

@Treatment Temp. 427 °C,
Time 7200 sec
 50

@Treatment Temp. 800 °F,
Time 2.00 hour
51

@Treatment Temp. 371 °C,
Time 7200 sec
 51

@Treatment Temp. 700 °F,
Time 2.00 hour
Tensile Strength 1030 MPa

@Temperature -5.56 °C
 150000 psi

@Temperature 22.0 °F
 Hardened and tempered to 34 HRC
Tensile Strength, Yield 896 MPa

@Temperature 22.0 °C
 130000 psi

@Temperature 71.6 °F
 Hardened and tempered to 34 HRC
Elongation at Yield 15 %

@Temperature 22.0 °C
 15 %

@Temperature 71.6 °F
 Hardened and tempered to 34 HRC
Reduction of Area 35 %

@Temperature 22.0 °C
 35 %

@Temperature 71.6 °F
 Hardened and tempered to 34 HRC
Thermal Properties Metric English Comments
CTE, linear 12.2 µm/m-°C

@Temperature 21.1 - 93.3 °C
 6.80 µin/in-°F

@Temperature 70.0 - 200 °F
12.6 µm/m-°C

@Temperature 21.1 - 204 °C
 7.00 µin/in-°F

@Temperature 70.0 - 400 °F
12.8 µm/m-°C

@Temperature 21.1 - 302 °C
 7.10 µin/in-°F

@Temperature 70.0 - 575 °F
Thermal Conductivity 29.1 W/m-K

@Temperature 21.1 °C
 202 BTU-in/hr-ft²-°F

@Temperature 70.0 °F
30.1 W/m-K

@Temperature 204 °C
 209 BTU-in/hr-ft²-°F

@Temperature 400 °F
31.1 W/m-K

@Temperature 427 °C
 216 BTU-in/hr-ft²-°F

@Temperature 800 °F
Component Elements Properties Metric English Comments
Carbon, C 0.34 %
0.34 %
Chromium, Cr 1.75 %
1.75 %
Iron, Fe 96.31 %
96.31 %
Manganese, Mn 0.80 %
0.80 %
Molybdenum, Mo 0.40 %
0.40 %
Silicon, Si 0.40 %
0.40 %
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