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Latrobe Double Six™ ASTM M2 High Speed Steel
| Category | Metal , Ferrous Metal , Alloy Steel , Carbon Steel , High Carbon Steel , Tool Steel |
| Manufacturer | Latrobe Steel |
| Trade Name | Double Six™ |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Latrobe Double Six™ ASTM M2 High Speed Steel.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
DOUBLE SIX (M2) is a tungsten-molybdenum high speed steel with a well balanced composition suitable for a wide variety of applications. World wide, the M2 type is by far
the most popular high speed steel having replaced T1 high speed in most applications because of its superior properties and relative economy. Typical applications for Double Six high speed steel include twist drills, taps, milling cutters, reamers, broaches, saws, and knives.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 | 8.14 g/cc | 8.14 g/cc | |
| Density | 8.14 g/cc | 0.294 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Rockwell C | 64.0 | 64.0 | Oil Quenched from 1121°C |
| 64.5 | 64.5 | Oil Quenched from 1232°C | |
| 66 | 66 | Oil Quenched from 1177°C | |
| Modulus of Elasticity | 207 GPa | 30000 ksi | |
| Machinability | 50 - 60 % | 50 - 60 % | 1% Carbon Steel |
| Izod Impact Unnotched | 51.5 J | 38.0 ft-lb | Oil Quenched at 1232°C; 482°C Temper Temperature |
| 55.6 J | 41.0 ft-lb | Oil Quenched at 1232°C; 545°C Temper Temperature | |
| 56.9 J | 42.0 ft-lb | Oil Quenched at 1232°C; 622°C Temper Temperature | |
| 56.9 J | 42.0 ft-lb | Oil Quenched at 1177°C; 482°C Temper Temperature | |
| 66.4 J | 49.0 ft-lb | Oil Quenched at 1177°C; 622°C Temper Temperature | |
| 96.3 J | 71.0 ft-lb | Oil Quenched at 1177°C; 566°C Temper Temperature |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 10.95 µm/m-°C @Temperature 21.0 - 204 °C |
6.083 µin/in-°F @Temperature 69.8 - 399 °F |
|
| 12.54 µm/m-°C @Temperature 21.0 - 358 °C |
6.967 µin/in-°F @Temperature 69.8 - 676 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Carbon, C | 0.85 % | 0.85 % | |
| Chromium, Cr | 4.15 % | 4.15 % | |
| Iron, Fe | 81.42 % | 81.42 % | |
| Manganese, Mn | 0.28 % | 0.28 % | |
| Molybdenum, Mo | 5.0 % | 5.0 % | |
| Silicon, Si | 0.30 % | 0.30 % | |
| Tungsten, W | 6.15 % | 6.15 % | |
| Vanadium, V | 1.85 % | 1.85 % |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Critical Temperature | 749 °C | 1380 °F | Ar3 |
| 777 °C | 1430 °F | Ar1 | |
| 832 °C | 1530 °F | Ac1 | |
| 877 °C | 1610 °F | Ac3 |
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