Latrobe LSS™ H13 PQ Hot Work Tool Steel

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Latrobe LSS™ H13 PQ Hot Work Tool Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; Tool Steel; Hot Work Steel
Material Notes:	TLS H13 PQ is Premium Quality H13 hot work steel that is designed to meet the highest quality standards in the die casting industry, and to excel in the most demanding hot work tooling applications. TLS H13 PQ is melted using an electric-arc furnace, is refined by the argon-oxygen-decarburization (AOD) process, and is further enhanced to aerospace quality levels using Vacuum-Arc or Electro-Slag Remelting. These special melting practices along with special thermo-mechanical and annealing treatments result in ultra-high microcleanliness and a homogeneous, fine-grained microstructure. 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	7.75 g/cc	7.75 g/cc
Density	7.75 g/cc	0.280 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	50	50	Air Cooled from 982°C, 30 minutes
	52.5	52.5	Air Cooled from 1010°C, 30 minutes
	54	54	Air Cooled from 1032°C, 30 minutes
Modulus of Elasticity	207 GPa	30000 ksi
	159 GPa @Temperature 538 °C	23000 ksi @Temperature 1000 °F
	186 GPa @Temperature 204 °C	27000 ksi @Temperature 400 °F
Machinability	65 - 70 %	65 - 70 %	1% Carbon Steel
Charpy Impact	13.6 J	10.0 ft-lb	V-Notch; Air Cooled from 1024°C; 535°C Temper Temperature
	32.5 J	24.0 ft-lb	V-Notch; Air Cooled from 1024°C; 640°C Temper Temperature
	35.3 J	26.0 ft-lb	V-Notch; Air Cooled from 1024°C; 260°C Temper Temperature

Thermal Properties	Metric	English	Comments
CTE, linear	11.3 µm/m-°C @Temperature 21.0 - 204 °C	6.28 µin/in-°F @Temperature 69.8 - 399 °F
	13.5 µm/m-°C @Temperature 21.0 - 538 °C	7.50 µin/in-°F @Temperature 69.8 - 1000 °F
Thermal Conductivity	17.6 W/m-K @Temperature 27.0 °C	122 BTU-in/hr-ft²-°F @Temperature 80.6 °F
	23.4 W/m-K @Temperature 204 °C	162 BTU-in/hr-ft²-°F @Temperature 399 °F
	26.8 W/m-K @Temperature 649 °C	186 BTU-in/hr-ft²-°F @Temperature 1200 °F

Processing Properties	Metric	English	Comments
Processing Temperature	802 °C	1480 °F	Critical Temperaure Ar1
	826 °C	1520 °F	Critical Temperaure Ar3
	840 °C	1540 °F	Critical Temperaure Ac1
	890 °C	1630 °F	Critical Temperaure Ac3

Component Elements Properties	Metric	English	Comments
Carbon, C	0.40 %	0.40 %
Chromium, Cr	5.25 %	5.25 %
Iron, Fe	90.599 %	90.599 %
Manganese, Mn	0.40 %	0.40 %
Molybdenum, Mo	1.35 %	1.35 %
Silicon, Si	1.0 %	1.0 %
Sulfur, S	0.0010 %	0.0010 %
Vanadium, V	1.0 %	1.0 %

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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NTIMK084 / 19431

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