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Crucible Steel CRUCIBLE A9 Tool Steel
| Category | Metal , Ferrous Metal , Tool Steel , Air-Hardening Steel |
| Manufacturer | Crucible Steel |
| Trade Name | CRUCIBLE |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Crucible Steel CRUCIBLE A9 Tool Steel.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Crucible A9 is an air-hardening tool steel combining some of characteristics of the 5% chromium hot-work grades (such as H13) with the high attainable hardness and compressive yield strength of the cold-work grades such as A2). Crucible A9 is suitable for hot and cold work applications requiring high toughness, hardness, or heat check resistance, and moderate wear resistance.Information provided by Crucible Industries
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 7.78 g/cc | 0.281 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Brinell | 217 - 241 | 217 - 241 | |
| Hardness, Rockwell C | 47 @Tempering Temp. 593 °C |
47 @Tempering Temp. 1100 °F |
hardened at 1800°F then tempered |
| 52.5 @Tempering Temp. 566 °C |
52.5 @Tempering Temp. 1050 °F |
hardened at 1800°F then tempered | |
| 54.5 @Tempering Temp. 538 °C |
54.5 @Tempering Temp. 1000 °F |
hardened at 1800°F then tempered | |
| 56 @Tempering Temp. 482 °C |
56 @Tempering Temp. 900 °F |
hardened at 1800°F then tempered | |
| 56.5 @Tempering Temp. 510 °C |
56.5 @Tempering Temp. 950 °F |
hardened at 1800°F then tempered | |
| Modulus of Elasticity | 207 GPa | 30000 ksi | |
| Charpy Impact | 67.8 J @Tempering Temp. 482 °C |
50.0 ft-lb @Tempering Temp. 900 °F |
hardened at 1800°F then tempered; C-notch |
| 67.8 J @Tempering Temp. 510 °C |
50.0 ft-lb @Tempering Temp. 950 °F |
hardened at 1800°F then tempered; C-notch | |
| 152 J @Tempering Temp. 538 °C |
112 ft-lb @Tempering Temp. 1000 °F |
hardened at 1800°F then tempered; C-notch | |
| 182 J @Tempering Temp. 566 °C |
134 ft-lb @Tempering Temp. 1050 °F |
hardened at 1800°F then tempered; C-notch | |
| 205 J @Tempering Temp. 593 °C |
151 ft-lb @Tempering Temp. 1100 °F |
hardened at 1800°F then tempered; C-notch |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 12.1 µm/m-°C @Temperature 20.0 - 427 °C |
6.70 µin/in-°F @Temperature 68.0 - 800 °F |
|
| 12.4 µm/m-°C @Temperature 20.0 - 538 °C |
6.90 µin/in-°F @Temperature 68.0 - 1000 °F |
||
| 12.6 µm/m-°C @Temperature 20.0 - 649 °C |
7.00 µin/in-°F @Temperature 68.0 - 1200 °F |
||
| Thermal Conductivity | 25.8 W/m-K @Temperature 95.0 °C |
179 BTU-in/hr-ft²-°F @Temperature 203 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Carbon, C | 0.50 % | 0.50 % | |
| Chromium, Cr | 5.2 % | 5.2 % | |
| Iron, Fe | 89.2 % | 89.2 % | as balance |
| Manganese, Mn | 0.30 % | 0.30 % | |
| Molybdenum, Mo | 1.4 % | 1.4 % | |
| Nickel, Ni | 1.4 % | 1.4 % | |
| Silicon, Si | 1.0 % | 1.0 % | |
| Vanadium, V | 1.0 % | 1.0 % |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Critical Temperature | 804 °C | 1480 °F |
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