Schmolz + Bickenbach Cryodur® 2357(S-7) Cold Work Die Steel

Category	Metal , Ferrous Metal , Tool Steel , Cold Work Steel
Manufacturer	Schmolz + Bickenbach (Swiss Steel International)
Trade Name	Cryodur®
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Schmolz + Bickenbach Cryodur® 2357(S-7) Cold Work Die Steel.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

Description: Cryodur 2357 is a shock resistant tool steel with excellent toughness and high strength; Suitable for cold and hot work applications up to 1000 °F; and Supplied in the annealed conditionCharacteristics: Excellent toughness; Good wear resistance (abrasion); and Good polishabilityApplications: Compression molds, Injection Molds, Blanking die, Tablet compression dies, Shears, and PunchesStress Relieving (Heat Treatment):Annealed Parts: 1200°F-1250°F Hold time 2 hours, slowly cool to 930°F, then air coolHardened Parts: Heat to 25°F-50°F below the original tempering temperature, hold for 2 hours, then cool in airHardening (Heat Treatment): 1690°F- 1775°F Hold at temperature for 30 minutes; Cooling: Furnace quench to 350°F, air cool to 120°F. Immediately temper; Hardness: 60-62 HRC QuenchedInformation provided by Schmolz + Bickenbach

Physical Properties	Metric	English	Comments
Density	7.75 g/cc	0.280 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	44 @Treatment Temp. 600.0 °C, Time 7200 sec	44 @Treatment Temp. 1112 °F, Time 2.00 hour
	46 @Treatment Temp. 550.0 °C, Time 7200 sec	46 @Treatment Temp. 1022 °F, Time 2.00 hour
	49 @Treatment Temp. 500 °C, Time 7200 sec	49 @Treatment Temp. 932 °F, Time 2.00 hour
	54 @Treatment Temp. 200 °C, Time 7200 sec	54 @Treatment Temp. 392 °F, Time 2.00 hour
	54 @Treatment Temp. 100 °C, Time 7200 sec	54 @Treatment Temp. 212 °F, Time 2.00 hour
	55 @Treatment Temp. 300 °C, Time 7200 sec	55 @Treatment Temp. 572 °F, Time 2.00 hour
	56 @Treatment Temp. 400 °C, Time 7200 sec	56 @Treatment Temp. 752 °F, Time 2.00 hour
Compressive Strength	1620 MPa	235000 psi	55 HRC
	2000 MPa	290000 psi	60 HRC
	2070 MPa	300000 psi	62 HRC

Thermal Properties	Metric	English
CTE, linear	12.2 µm/m-°C @Temperature 21.1 - 204 °C	6.80 µin/in-°F @Temperature 70.0 - 400 °F
	12.6 µm/m-°C @Temperature 21.1 - 399 °C	7.00 µin/in-°F @Temperature 70.0 - 750 °F
Thermal Conductivity	28.8 W/m-K @Temperature 20.0 °C	200 BTU-in/hr-ft²-°F @Temperature 68.0 °F
	30.0 W/m-K @Temperature 204 °C	208 BTU-in/hr-ft²-°F @Temperature 400 °F
	31.0 W/m-K @Temperature 399 °C	215 BTU-in/hr-ft²-°F @Temperature 750 °F

Component Elements Properties	Metric	English
Carbon, C	0.50 %	0.50 %
Chromium, Cr	3.35 %	3.35 %
Iron, Fe	93.3 %	93.3 %
Manganese, Mn	0.70 %	0.70 %
Molybdenum, Mo	1.6 %	1.6 %
Silicon, Si	0.30 %	0.30 %
Vanadium, V	0.25 %	0.25 %

Processing Properties	Metric	English	Comments
Annealing Temperature	610 - 649 °C	1130 - 1200 °F	Soft; Cooling: Furnace 20°F/hour to 930°F then air cool; < 220 HB

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