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Schmolz + Bickenbach Cryodur® 2379 (D-2) Cold Work Die Steel
| Category | Metal , Ferrous Metal , Tool Steel , Cold Work Steel |
| Manufacturer | Schmolz + Bickenbach (Swiss Steel International) |
| Trade Name | Cryodur® |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Schmolz + Bickenbach Cryodur® 2379 (D-2) Cold Work Die Steel.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Description: Cryodur® 2379 is a high carbon, high chromium tool steel developed for high wear applications and Supplied in the annealed conditionCharacteristics: Excellent abrasive wear resistance; High compressive strength; Good stability during heat treatment; and Good through hardening propertiesApplications: Forming Rolls, Threading rolls, Fine blanking die, Cold extrusion dies, Coining dies, and Trim dieStress Relieving (Heat Treatment): 1200°F-1290°F; Cooling: Hold time 2 hours, slowly cool to 930°F, then air coolHardening (Heat Treatment): 1840°F-1905°F Hold at temperature for 30 minutes; Cooling: Furnace quench to 350°F, air cool to 120°F, immediately temper; Hardness:
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 7.70 g/cc | 0.278 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Rockwell C | 50 @Treatment Temp. 600.0 °C, Time 7200 sec |
50 @Treatment Temp. 1112 °F, Time 2.00 hour |
|
| 56 @Treatment Temp. 550.0 °C, Time 7200 sec |
56 @Treatment Temp. 1022 °F, Time 2.00 hour |
||
| 58 @Treatment Temp. 300 °C, Time 7200 sec |
58 @Treatment Temp. 572 °F, Time 2.00 hour |
||
| 58 @Treatment Temp. 400 °C, Time 7200 sec |
58 @Treatment Temp. 752 °F, Time 2.00 hour |
||
| 58 @Treatment Temp. 500 °C, Time 7200 sec |
58 @Treatment Temp. 932 °F, Time 2.00 hour |
||
| 61 @Treatment Temp. 200 °C, Time 7200 sec |
61 @Treatment Temp. 392 °F, Time 2.00 hour |
||
| 63 @Treatment Temp. 100 °C, Time 7200 sec |
63 @Treatment Temp. 212 °F, Time 2.00 hour |
||
| Compressive Strength | 1900 MPa | 275000 psi | 55 HRC |
| 2140 MPa | 310000 psi | 60 HRC | |
| 2210 MPa | 320000 psi | 62 HRC |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 10.4 µm/m-°C @Temperature 21.1 - 93.3 °C |
5.80 µin/in-°F @Temperature 70.0 - 200 °F |
|
| 11.3 µm/m-°C @Temperature 21.1 - 204 °C |
6.30 µin/in-°F @Temperature 70.0 - 400 °F |
||
| 12.2 µm/m-°C @Temperature 21.1 - 399 °C |
6.80 µin/in-°F @Temperature 70.0 - 750 °F |
||
| Thermal Conductivity | 16.7 W/m-K @Temperature 20.0 °C |
116 BTU-in/hr-ft²-°F @Temperature 68.0 °F |
|
| 20.5 W/m-K @Temperature 343 °C |
142 BTU-in/hr-ft²-°F @Temperature 650 °F |
||
| 24.2 W/m-K @Temperature 704 °C |
168 BTU-in/hr-ft²-°F @Temperature 1300 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Carbon, C | 1.55 % | 1.55 % | |
| Chromium, Cr | 12 % | 12 % | |
| Iron, Fe | 84.15 % | 84.15 % | |
| Manganese, Mn | 0.35 % | 0.35 % | |
| Molybdenum, Mo | 0.75 % | 0.75 % | |
| Silicon, Si | 0.30 % | 0.30 % | |
| Vanadium, V | 0.90 % | 0.90 % |
| Processing Properties | Metric | English | Comments |
|---|---|---|---|
| Annealing Temperature | 829.4 - 860 °C | 1525 - 1580 °F | Soft; Cooling: Furnace 20°F/hour to 1200°F/ Then air cool; < 250 HB |
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