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Rulon Bearings

AISI Type P20 Mold Steel (UNS T51620)
Categories: Metal; Ferrous Metal; Tool Steel; Mold Steel

Material Notes: Commonly used for molds in for plastics injection molding. Information collected from supplier information and the references.

Key Words: ASTM A681(94) has same composition (or higher S if specified for machining).
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 7.85 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 300300Typical
Hardness, Rockwell C 3030Typical
Tensile Strength, Ultimate 965 - 1030 MPa140000 - 150000 psi
Tensile Strength, Yield 827 - 862 MPa120000 - 125000 psi
Elongation at Break 20 %20 %in 50 mm (2")
Modulus of Elasticity 205 GPa29700 ksi
Compressive Strength 862 MPa125000 psi
Charpy Impact 27.1 - 33.9 J20.0 - 25.0 ft-lbV-Notch
 
Thermal PropertiesMetricEnglishComments
CTE, linear 12.8 µm/m-°C
@Temperature 20.0 °C
7.10 µin/in-°F
@Temperature 68.0 °F
Thermal Conductivity 29.0 - 34.0 W/m-K201 - 236 BTU-in/hr-ft²-°F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.28 - 0.40 %0.28 - 0.40 %
Chromium, Cr 1.4 - 2.0 %1.4 - 2.0 %
Iron, Fe 97 %97 %As remainder
Manganese, Mn 0.60 - 1.0 %0.60 - 1.0 %
Molybdenum, Mo 0.30 - 0.55 %0.30 - 0.55 %
Phosphorus, P <= 0.030 %<= 0.030 %
Silicon, Si 0.20 - 0.80 %0.20 - 0.80 %
Sulfur, S <= 0.030 %<= 0.030 %

References for this datasheet.

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