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
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
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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