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Rulon Bearings

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Latrobe LSS™ 420 Supreme Plastic Mold Steel (AISI 420)
Categories: Metal; Ferrous Metal; Stainless Steel; Tool Steel; Mold Steel

Material Notes: TLS 420 Supreme is a specially-refined, mold-quality stainless steel that is engineered to provide supreme polishability, good corrosion resistance, and good wear resistance. TLS 420 supreme is manufactured using special melting and remelting techniques. These special melting practices along with proprietary forging practices result in the highest levels of microcleanliness and a homogeneous microstructure. TLS 420 Supreme is the material of choice for the manufacture of plastic molding tools that require the highest lens-quality polished finishes. Typical applications include molds for compact disks (CDs), medical laboratory equipment, optical lenses, and other components, which require critical surface finishes.

Information Provided by Timken Latrobe Steel.

Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co.

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 PropertiesOriginal ValueComments
Specific Gravity 7.75 g/cc
Density 0.280 lb/in³
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell C 52Air Cooled from 982°C, 30 minutes
 55.5Air Cooled from 1010°C, 30 minutes
 56.5Air Cooled from 1038°C, 30 minutes
Modulus of Elasticity 29000 ksi
Machinability 55 - 60 %1% Carbon Steel
Izod Impact Unnotched 10.0 ft-lbAir Cooled from 1010°C; 393°C Temper Temperature
 15.0 ft-lbAir Cooled from 1010°C; 593°C Temper Temperature
 
Thermal PropertiesOriginal ValueComments
CTE, linear 10.2 µm/m-°C
@Temperature 20.0 - 100 °C
 11.7 µm/m-°C
@Temperature 20.0 - 538 °C
Thermal Conductivity 22.84 W/m-K
@Temperature 20.0 °C
 23.93 W/m-K
@Temperature 199 °C
 24.95 W/m-K
@Temperature 399 °C
 
Processing PropertiesOriginal ValueComments
Processing Temperature 802 °CCritical Temperaure Ac1
 863 °CCritical Temperaure Ac3
 
Component Elements PropertiesOriginal ValueComments
Chromium, Cr 13.6 %
Iron, Fe 84.87 %
Manganese, Mn 0.45 %
Other 0.38 %
Silicon, Si 0.40 %
Vanadium, V 0.30 %

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 go back to viewing the property data in MatWeb's normal format.

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