Latrobe LSS™ H14 Tool Steel (ASTM H14)

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Latrobe LSS™ H14 Tool Steel (ASTM H14)
Categories:	Metal; Ferrous Metal; Alloy Steel; Tool Steel; Air-Hardening Steel
Material Notes:	TLS H14 tool steel is a 5%-chromium hot work steel to which tungsten has been added for improved high-temperature properties and heat resistance. It is a deep-hardening, airhardening steel that exhibits minimal size change during hardening. TLS H14 hot work tool steel is particularly suited for long-run die casting dies, brass forging dies, various extrusion tools, hot piercing tools, and hot mandrels. Information Provided by Timken Latrobe Steel. Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co.
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Physical Properties	Metric	English	Comments

Specific Gravity	7.89 g/cc	7.89 g/cc
Density	7.89 g/cc	0.285 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	52	52	Air Cooled from 982°C, 30 minutes
	55	55	Air Cooled from 1010°C, 30 minutes
	56	56	Air Cooled from 1038°C, 30 minutes
Modulus of Elasticity	207 GPa	30000 ksi
Machinability	70 - 75 %	70 - 75 %	1% Carbon Steel
Charpy Impact	12.9 J	9.50 ft-lb	V-Notch; Air Cooled from 1010°C; 490°C Temper Temperature
	16.3 J	12.0 ft-lb	V-Notch; Air Cooled from 1010°C; 370°C Temper Temperature
	17.6 J	13.0 ft-lb	V-Notch; Air Cooled from 1010°C; 650°C Temper Temperature

Thermal Properties	Metric	English	Comments
CTE, linear	10.9 µm/m-°C @Temperature 21.0 - 93.0 °C	6.06 µin/in-°F @Temperature 69.8 - 199 °F
	13.5 µm/m-°C @Temperature 21.0 - 788 °C	7.50 µin/in-°F @Temperature 69.8 - 1450 °F
Thermal Conductivity	17.6 W/m-K @Temperature 27.0 °C	122 BTU-in/hr-ft²-°F @Temperature 80.6 °F
	25.9 W/m-K @Temperature 760 °C	180 BTU-in/hr-ft²-°F @Temperature 1400 °F

Processing Properties	Metric	English	Comments
Processing Temperature	843 °C	1550 °F	Critical Temperaure Ac1

Component Elements Properties	Metric	English	Comments
Carbon, C	0.40 %	0.40 %
Chromium, Cr	5.25 %	5.25 %
Iron, Fe	87 %	87 %
Manganese, Mn	0.25 %	0.25 %
Molybdenum, Mo	1.35 %	1.35 %
Silicon, Si	1.0 %	1.0 %
Tungsten, W	4.75 %	4.75 %

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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NTIMK089 / 19436

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