International Mold Steel DH2F Pre-Hardened H13-Type Mold Steel

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International Mold Steel DH2F Pre-Hardened H13-Type Mold Steel
Categories:	Metal; Ferrous Metal; Tool Steel; Hot Work Steel; Mold Steel
Material Notes:	Description: DH2F is one of the best machining pre-hardened H13-type steels available. Unique Characteristics: 38-42 HRc hardness. Through hardened for exceptional dimensional stability. Cuts mold making costs by reducing man hours required for machining. Classified as a “free-machining” steel. Ideal for complex, precision molds and parts susceptible to distortion and/or deformation without needing additional heat-treating. Ideal for Ion-nitriding. Applications: Molds for plastics Diecast die components Plunger tips, sprue bushings Diecasting dies for aluminum and zinc Dies for aluminum extrusions Press dies Dieplate strippers Machine parts Information provided by International Mold Steel.
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Mechanical Properties	Original Value	Comments

Hardness, Rockwell C	38 - 42
Hardness, Vickers	130 @Temperature 700.0 °C
	220 @Temperature 600.0 °C
	320 @Temperature 300 °C
	320 @Temperature 400 °C
	320 @Temperature 500 °C
	330 @Temperature 200 °C
	380 @Temperature 100 °C
	400 @Temperature 23.0 °C
Tensile Strength, Ultimate	400 MPa @Temperature 700.0 °C
	785 MPa @Temperature 600.0 °C
	1080 MPa @Temperature 500 °C
	1100 MPa @Temperature 400 °C
	1170 MPa @Temperature 300 °C
	1300 MPa @Temperature 200 °C
	1300 MPa @Temperature 23.0 °C
Tensile Strength, Yield	300 MPa @Temperature 700.0 °C
	730 MPa @Temperature 600.0 °C
	850 MPa @Temperature 400 °C
	880 MPa @Temperature 500 °C
	1050 MPa @Temperature 300 °C
	1100 MPa @Temperature 200 °C
	1100 MPa @Temperature 23.0 °C
Elongation at Break	10 % @Temperature 23.0 °C
	10 % @Temperature 392 °C
	10 % @Temperature 752 °C
	12 % @Temperature 572 °C
	13 % @Temperature 932 °C
	20 % @Temperature 1112 °C
	37 % @Temperature 1292 °C
Reduction of Area	15 % @Temperature 23.0 °C
	22 % @Temperature 400 °C
	25 % @Temperature 200 °C
	26 % @Temperature 300 °C
	30 % @Temperature 500 °C
	40 % @Temperature 600.0 °C
	60 % @Temperature 700.0 °C
Machinability	65 %	100% would be best rating for pre-hardened mold steels
Charpy Impact, Notched	25.0 J/cm² @Temperature 400 °C
	29.0 J/cm² @Temperature 500 °C
	29.0 J/cm² @Temperature 300 °C
	29.0 J/cm² @Temperature 23.0 °C
	39.0 J/cm² @Temperature 600.0 °C
	40.0 J/cm² @Temperature 100 °C
	45.0 J/cm² @Temperature 200 °C
	49.0 J/cm² @Temperature 700.0 °C
Abrasion	3.76	mm²kgf^{x10^-7}, Speed = 0.656 ft/sec, Final Load = 1.5 lbs; Ohgoshi
	4.61	mm²kgf^{x10^-7}, Speed = 7.8064 ft/sec, Final Load = 1.5 lbs; Ohgoshi

Thermal Properties	Original Value	Comments
CTE, linear	4.94 µin/in-°F @Temperature 20.0 - 100 °C
	6.00 µin/in-°F @Temperature 20.0 - 200 °C
	6.61 µin/in-°F @Temperature 20.0 - 300 °C
	7.00 µin/in-°F @Temperature 20.0 - 400 °C
	7.28 µin/in-°F @Temperature 20.0 - 500 °C
	7.61 µin/in-°F @Temperature 20.0 - 600.0 °C
	7.72 µin/in-°F @Temperature 20.0 - 700.0 °C

Component Elements Properties	Original Value	Comments
Carbon, C	0.32 - 0.42 %
Chromium, Cr	4.5 - 5.5 %
Iron, Fe	88.38 - 90.78 %
Manganese, Mn	1.5 %
Molybdenum, Mo	1.0 - 1.5 %
Silicon, Si	1.5 %
Vanadium, V	0.40 - 1.2 %

Descriptive Properties
Erosion Resistance	15.2%	after soaking in an aluminum bath at 1292°F for 30 hours

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NIMS05 / 17384

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