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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 |
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/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Rockwell C | 53 | 53 | Air Cooled from 982°C, 45 minutes |
| 54 | 54 | Air Cooled from 1010°C, 45 minutes | |
| 55 | 55 | Air Cooled from 1038°C, 45 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 | 75 - 80 % | 75 - 80 % | 1% Carbon Steel |
| Charpy Impact | 23.0 J | 17.0 ft-lb | V-Notch; Air Cooled from 1010°C; 649°C Temper Temperature |
| 31.2 J | 23.0 ft-lb | V-Notch; Air Cooled from 1010°C; As Quenched | |
| 33.9 J | 25.0 ft-lb | V-Notch; Air Cooled from 1010°C; 172°C Temper Temperature |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 11.7 µm/m-°C @Temperature 27.0 - 204 °C |
6.50 µin/in-°F @Temperature 80.6 - 399 °F |
|
| 14.0 µm/m-°C @Temperature 260 - 649 °C |
7.78 µin/in-°F @Temperature 500 - 1200 °F |
||
| Thermal Conductivity | 18.9 W/m-K @Temperature 27.0 °C |
131 BTU-in/hr-ft²-°F @Temperature 80.6 °F |
|
| 25.6 W/m-K @Temperature 204 °C |
178 BTU-in/hr-ft²-°F @Temperature 399 °F |
||
| 27.9 W/m-K @Temperature 760 °C |
194 BTU-in/hr-ft²-°F @Temperature 1400 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| 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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