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Specialty Compounds RTP Company

Latrobe LSS™ 420 HC High Carbon Stainless Steel
Categories: Metal; Ferrous Metal; Martensitic; Stainless Steel

Material Notes: TLS 420 HC is a high-carbon martensitic stainless steel which exhibits an attainable hardness of approximately 55 HRC and good wear resistance. TLS 420 HC should be considered for applications such as specialty knives, industrial knives, cutlery, rolls, plastic extrusion tooling, scissors, surgical knives, bearings, and other applications which require a combination of corrosion resistance and wear resistance.

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 PropertiesMetricEnglishComments
Specific Gravity 7.70 g/cc7.70 g/cc
Density 7.70 g/cc0.278 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell C 5454Air Cooled from 982°C, 30 minutes
 5656Air Cooled from 1010°C, 30 minutes
 5757Air Cooled from 1025°C, 30 minutes
Modulus of Elasticity 207 GPa30000 ksi
Machinability 50 - 55 %50 - 55 %1% Carbon Steel
Izod Impact Unnotched 13.6 J10.0 ft-lbAir Cooled from 1010°C; 393°C Temper Temperature
 20.3 J15.0 ft-lbAir Cooled from 1010°C; 593°C Temper Temperature
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 0.0000548 ohm-cm0.0000548 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear  10.5 µm/m-°C
@Temperature 20.0 - 100 °C
5.83 µin/in-°F
@Temperature 68.0 - 212 °F
 12.0 µm/m-°C
@Temperature 20.0 - 500 °C
6.67 µin/in-°F
@Temperature 68.0 - 932 °F
Thermal Conductivity  30.0 W/m-K
@Temperature 20.0 °C
208 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
 31.11 W/m-K
@Temperature 199 °C
215.9 BTU-in/hr-ft²-°F
@Temperature 390 °F
 32.44 W/m-K
@Temperature 399 °C
225.1 BTU-in/hr-ft²-°F
@Temperature 750 °F
 
Processing PropertiesMetricEnglishComments
Processing Temperature 799 °C1470 °FCritical Temperaure Ac1
 860 °C1580 °FCritical Temperaure Ac3
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.46 %0.46 %
Chromium, Cr 13 %13 %
Iron, Fe 85.44 %85.44 %
Manganese, Mn 0.40 %0.40 %
Silicon, Si 0.40 %0.40 %
Vanadium, V 0.30 %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 view all the property values for this datasheet as they were originally entered into MatWeb.

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