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Latrobe LSSâ„¢ H12 Hot Work Tool Steel (ASTM H12)

Category	Metal , Ferrous Metal , Alloy Steel , Tool Steel , Hot Work Steel
Manufacturer	Latrobe Steel
Trade Name	LSS™
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Latrobe LSSâ„¢ H12 Hot Work Tool Steel (ASTM H12).pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

TLS H12 hot work tool steel is a 5% chromium, general-purpose hot work steel that is characterized by excellent impact toughness. It contains less vanadium than the widely-used H13 hot work tool steel, and the tungsten content provides better temper resistance. TLS H12 hot work tool steel is a deep-hardening, air-hardening steel that exhibits minimal size change during heat treatment. It has good resistance to thermal fatigue cracking (heat checking) and excellent resistance to gross cracking and thermal shock when water cooled in service. TLS H12 hot work tool steel is recommended for hot tooling applications where maximum resistance to cracking is required. Such applications include hot punches, die casting dies, forging dies, hot shear blades, hot gripper dies, and extrusion tooling.Information Provided by Timken Latrobe Steel.Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co.

Physical Properties	Metric	English	Comments
Specific Gravity	7.68 g/cc	7.68 g/cc
Density	7.67 g/cc	0.277 lb/inÂ³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	53	53	Air Cooled from 982Â°C, 45 minutes
	54	54	Air Cooled from 1010Â°C, 45 minutes
	55	55	Air Cooled from 1038Â°C, 45 minutes
Modulus of Elasticity	207 GPa	30000 ksi
	159 GPa @Temperature 538 Â°C	23000 ksi @Temperature 1000 Â°F
	186 GPa @Temperature 204 Â°C	27000 ksi @Temperature 400 Â°F
Machinability	75 - 80 %	75 - 80 %	1% Carbon Steel
Charpy Impact	23.0 J	17.0 ft-lb	V-Notch; Air Cooled from 1010Â°C; 649Â°C Temper Temperature
	31.2 J	23.0 ft-lb	V-Notch; Air Cooled from 1010Â°C; As Quenched
	33.9 J	25.0 ft-lb	V-Notch; Air Cooled from 1010Â°C; 172Â°C Temper Temperature

Thermal Properties	Metric	English
CTE, linear	11.7 Âµm/m-Â°C @Temperature 27.0 - 204 Â°C	6.50 Âµin/in-Â°F @Temperature 80.6 - 399 Â°F
	14.0 Âµm/m-Â°C @Temperature 260 - 649 Â°C	7.78 Âµin/in-Â°F @Temperature 500 - 1200 Â°F
Thermal Conductivity	18.9 W/m-K @Temperature 27.0 Â°C	131 BTU-in/hr-ftÂ²-Â°F @Temperature 80.6 Â°F
	25.6 W/m-K @Temperature 204 Â°C	178 BTU-in/hr-ftÂ²-Â°F @Temperature 399 Â°F
	27.9 W/m-K @Temperature 760 Â°C	194 BTU-in/hr-ftÂ²-Â°F @Temperature 1400 Â°F

Component Elements Properties	Metric	English
Carbon, C	0.35 %	0.35 %
Chromium, Cr	5.0 %	5.0 %
Iron, Fe	90.65 %	90.65 %
Manganese, Mn	0.30 %	0.30 %
Molybdenum, Mo	1.4 %	1.4 %
Silicon, Si	1.0 %	1.0 %
Tungsten, W	1.3 %	1.3 %
Vanadium, V	0.30 %	0.30 %

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