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Latrobe LSSâ„¢ H11 Hot Work Tool Steel (ASTM H11)
| 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„¢ H11 Hot Work Tool Steel (ASTM H11).pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
TLS H11 hot work tool steel is a 5% chromium hot work steel that is characterized by excellent impact toughness. It contains less vanadium than the widely-used H13 hot work tool steel. This provides for the higher toughness, with some reduction in wear resistance and temper resistance. TLS H11 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 H11 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 | 7.80 g/cc | 7.80 g/cc | |
| Density | 7.81 g/cc | 0.282 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Rockwell C | 52.5 | 52.5 | Air Cooled from 982°C, 45 minutes |
| 56 | 56 | Air Cooled from 1010°C, 45 minutes | |
| 57 | 57 | Air Cooled from 1038°C, 45 minutes | |
| Modulus of Elasticity | 207 GPa | 30000 ksi | |
| 159 GPa @Temperature 538 °C |
23000 ksi @Temperature 1000 °F |
||
| 190 GPa @Temperature 204 °C |
27500 ksi @Temperature 400 °F |
||
| Machinability | 75 - 80 % | 75 - 80 % | 1% Carbon Steel |
| Charpy Impact | 13.6 J | 10.0 ft-lb | V-Notch; Air Cooled from 1010°C; 535°C Temper Temperature |
| 27.1 J | 20.0 ft-lb | V-Notch; Air Cooled from 1010°C; 650°C Temper Temperature | |
| 33.9 J | 25.0 ft-lb | V-Notch; Air Cooled from 1010°C; 370 Temper Temperature |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 11.82 µm/m-°C @Temperature 21.0 - 204 °C |
6.567 µin/in-°F @Temperature 69.8 - 399 °F |
|
| 13.1 µm/m-°C @Temperature 21.0 - 538 °C |
7.28 µin/in-°F @Temperature 69.8 - 1000 °F |
||
| Thermal Conductivity | 17.58 W/m-K @Temperature 27.0 °C |
122.0 BTU-in/hr-ft²-°F @Temperature 80.6 °F |
|
| 23.84 W/m-K @Temperature 204 °C |
165.4 BTU-in/hr-ft²-°F @Temperature 399 °F |
||
| 26.78 W/m-K @Temperature 1200 °C |
185.9 BTU-in/hr-ft²-°F @Temperature 2190 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Carbon, C | 0.40 % | 0.40 % | |
| Chromium, Cr | 5.0 % | 5.0 % | |
| Iron, Fe | 91.5 % | 91.5 % | |
| Manganese, Mn | 0.30 % | 0.30 % | |
| Molybdenum, Mo | 1.3 % | 1.3 % | |
| Silicon, Si | 1.0 % | 1.0 % | |
| Vanadium, V | 0.50 % | 0.50 % |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Critical Temperature | 732 °C | 1350 °F | Ar3 |
| 793 °C | 1460 °F | Ar1 | |
| 830 °C | 1530 °F | Ac1 | |
| 852 °C | 1570 °F | Ac3 |
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