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Rulon Bearings

Latrobe LSS™ D2 Tool Steel (ASTM D2)
Categories: Metal; Ferrous Metal; Alloy Steel; Carbon Steel; High Carbon Steel; Tool Steel; Air-Hardening Steel

Material Notes: TLS D2 tool steel is a versatile high-carbon, high-chromium, air-hardening tool steel that is characterized by a relatively high attainable hardness and numerous, large, chromium rich alloy carbides in the microstructure. These carbides provide good resistance to wear from sliding contact with other metals and abrasive materials. Although other steels with improved toughness or improved wear resistance are available, TLS D2 provides an effective combination of wear resistance and toughness, tool performance, price, and a wide variety of product forms. TLS D2 is also available as an Electro-Slag-Remelted (ESR) product. The remelting process provides improved chemical homogeneity, refinement of carbide size, and the associated improvements in mechanical and fatigue properties. Typical applications for TLS D2 tool steel include rolls, punches, dies for blanking, forming, trimming, and thread rolling, shear knives, food-processing knives, and gauges.

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 62.562.5Air Cooled from 982°C, 30 minutes
 6363Air Cooled from 1038°C, 30 minutes
 6464Air Cooled from 1010°C, 30 minutes
Modulus of Elasticity 207 GPa30000 ksi
Machinability 50 - 60 %50 - 60 %1% Carbon Steel
Izod Impact Unnotched 10.8 J8.00 ft-lbAir Cooled from 1010°C; As Quenched
 29.8 J22.0 ft-lbAir Cooled from 1010°C; 483°C Temper Temperature
 55.6 J41.0 ft-lbAir Cooled from 1010°C; 593°C Temper Temperature
 
Thermal PropertiesMetricEnglishComments
CTE, linear  10.3 µm/m-°C
@Temperature 38.0 - 260 °C
5.72 µin/in-°F
@Temperature 100 - 500 °F
 12.3 µm/m-°C
@Temperature 38.0 - 538 °C
6.83 µin/in-°F
@Temperature 100 - 1000 °F
 
Processing PropertiesMetricEnglishComments
Processing Temperature 744 °C1370 °FCritical Temperaure Ar3
 788 °C1450 °FCritical Temperaure Ac1
 789 °C1450 °FCritical Temperaure Ar1
 1553 °C2827 °FCritical Temperaure Ac3
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 1.5 %1.5 %
Chromium, Cr 12 %12 %
Iron, Fe 85.6 %85.6 %
Manganese, Mn 0.30 %0.30 %
Molybdenum, Mo 0.75 %0.75 %
Silicon, Si 0.30 %0.30 %
Vanadium, V 0.90 %0.90 %

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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NTIMK107 / 19454

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