Assab Steels ASP 23 Cold Work Steel

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Assab Steels ASP 23 Cold Work Steel
Categories:	Metal; Ferrous Metal; Chrome-moly Steel; Tool Steel; Cold Work Steel
Material Notes:	ASP 23 is a chromium-molybdenum-tungsten-vanadium alloyed high speed steel which is characterized by: High wear resistance (abrasive profile) High compressive strength Very good through-hardening properties Good toughness Very good dimensional stability on heat treatment Very good temper resistance ASP 23 is especially suitable for blanking and forming of thinner work materials where a mixed (abrasive-adhesive) or abrasive type of wear is encountered and where the risk for plastic deformation of the working surfaces of the tool is high, e.g.: Blanking of medium to high carbon steels Blanking of harder materials such as hardened or cold-rolled strip steels Plastics mold tooling subjected to abrasive wear condition Plastics processing parts, e.g. feed screws, barrel liners, nozzles, screw tips, non-return check ring valves, pellitizer blades, granulator knives. AISI M3:2/W.-Nr. 1.3344
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Physical Properties	Original Value	Comments

Density	0.287 lb/in³
	0.281 lb/in³ @Temperature 600 °C
	0.283 lb/in³ @Temperature 400 °C

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	36	Holding time 100 hours. Austenitizing temperature: 1050°C. Tempering 3 x 1 h at 560°C. 650°C working temperature
	37	Holding time 100 hours. Austenitizing temperature: 1130°C. Tempering 3 x 1 h at 560°C. 650°C working temperature
	44	Holding time 100 hours. Austenitizing temperature: 1050°C. Tempering 3 x 1 h at 560°C. 600°C working temperature
	48	Holding time 100 hours. Austenitizing temperature: 1130°C. Tempering 3 x 1 h at 560°C. 600°C working temperature
	57	Holding time 5 hours. Austenitizing temperature: 1050°C. Tempering 3 x 1 h at 560°C. 600°C working temperature
	58	Final hardness after tempering 3 times for 1 hour at 560°C. 1020°C Austenitizing temperature
	60	Holding time 0.1 hours. Austenitizing temperature: 1050°C. Tempering 3 x 1 h at 560°C. 600°C working temperature
	63	Holding time 5 hours. Austenitizing temperature: 1130°C. Tempering 3 x 1 h at 560°C. 600°C working temperature
	65	Holding time 0.1 hours. Austenitizing temperature: 1130°C. Tempering 3 x 1 h at 560°C. 600°C working temperature
	66	Final hardness after tempering 3 times for 1 hour at 560°C. 1180°C Austenitizing temperature
Hardness, Vickers	200 @Temperature 700 °C	Hot Hardness. Austenitizing temperature: 1180°C. Tempering: 3x1h at 560°C. Holding time 10 minutes at 700°C
	550 @Temperature 600 °C	Hot Hardness. Austenitizing temperature: 1180°C. Tempering: 3x1h at 560°C. Holding time 10 minutes at 600°C
	800 @Temperature 200 °C	Hot Hardness. Austenitizing temperature: 1180°C. Tempering: 3x1h at 560°C. Holding time 10 minutes at 200°C
Modulus of Elasticity	230 GPa
	184 GPa @Temperature 400 °C
Flexural Strength	5000 MPa	58 HRC. Four point bend testing. 5 mm ø. 5mm/min. Austenitizing temperature: 990-1180°C, Tempering: 3X1 h at 560°C
	5000 MPa @Diameter 5.00 mm	66 HRC. Four point bend testing. 5mm/min. Austenitizing temperature: 990-1180°C, Tempering: 3X1 h at 560°C
	5400 MPa @Diameter 5.00 mm	62 HRC. Four point bend testing. 5mm/min. Austenitizing temperature: 990-1180°C, Tempering: 3X1 h at 560°C
Flexural Yield Strength	2600 MPa	57 HRC. Four point bend testing. 5 mm ø. 5mm/min. Austenitizing temperature: 990-1180°C, Tempering: 3X1 h at 560°C
	3500 MPa @Diameter 5.00 mm	66 HRC. Four point bend testing. 5mm/min. Austenitizing temperature: 990-1180°C, Tempering: 3X1 h at 560°C
Impact Test	40.0 J @Temperature 23.0 °C
	50.0 J @Temperature 23.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	11.1 µm/m-°C @Temperature 20.0 - 200 °C
	12.1 µm/m-°C @Temperature 20.0 - 400 °C
Specific Heat Capacity	0.100 BTU/lb-°F @Temperature 20.0 °C
Thermal Conductivity	24.0 W/m-K @Temperature 20.0 °C
	27.0 W/m-K @Temperature 600 °C
	28.0 W/m-K @Temperature 400 °C

Component Elements Properties	Original Value	Comments
Carbon, C	1.28 %
Chromium, Cr	4.2 %
Iron, Fe	80.02 %
Molybdenum, Mo	5.0 %
Tungsten, W	6.4 %
Vanadium, V	3.1 %

Descriptive Properties
Total Deflection, mm	2.1	66 HRC. Four point bend testing. 5 mm ø. 5mm/min. Austenitizing temperature: 990-1180°C, Tempering: 3X1 h at 560°C
	2.5	62 HRC. Four point bend testing. 5 mm ø. 5mm/min. Austenitizing temperature: 990-1180°C, Tempering: 3X1 h at 560°C
	3.25	58 HRC. Four point bend testing. 5 mm ø. 5mm/min. Austenitizing temperature: 990-1180°C, Tempering: 3X1 h at 560°C

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NASSAB10 / 15028

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