Crucible Compaction Metals CPM® VIM CRU® 20®

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Crucible Compaction Metals CPM® VIM CRU® 20®
Categories:	Metal; Ferrous Metal; Tool Steel
Material Notes:	CPM® VIM CRU® 20® is a vacuum induction melted, cobalt-free super high speed steel manufactured by the Crucible Particle Metallurgy (CPM®) process. VIM CRU processing is designed to meet the cleanliness and property requirements needed for critical bearing applications. Advantages: High Attainable Hardness Excellent Hot Hardness Fine Carbide Size Uniform Carbide Distribution Excellent Wear Resistance Information provided by Crucible Compaction Metals.
Key Words:	Powder Metallurgy
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Physical Properties	Metric	English	Comments

Density	8.172 g/cc	0.2952 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	262 - 285	262 - 285	Annealed
Hardness, Rockwell C	52	52	650°C Tempering Temperature;1150°C Hardening Temperature for 10 minutes
	54	54	650°C Tempering Temperature;1175°C Hardening Temperature for 5 minutes
	57	57	650°C Tempering Temperature;1205°C Hardening Temperature for 3 minutes
	61.5	61.5	595°C Tempering Temperature;1150°C Hardening Temperature for 10 minutes
	63	63	595°C Tempering Temperature;1175°C Hardening Temperature for 5 minutes
	63	63	As-Quenched; 1205°C Hardening Temperature for 3 minutes
	65	65	As-Quenched; 1175°C Hardening Temperature for 5 minutes
	65	65	595°C Tempering Temperature;1205°C Hardening Temperature for 3 minutes
	66	66	As-Quenched; 1150°C Hardening Temperature for 10 minutes
Modulus of Elasticity	234 GPa	34000 ksi
Flexural Strength	3957 MPa	573900 psi	1150°C Hardening Temperature, 550°C Tempering Temperature; 65.6 Rockwell Hardness C
	4005 MPa	580900 psi	1190°C Hardening Temperature, 550°C Tempering Temperature; 67 Rockwell Hardness C
Machinability	35 %	35 %	Based on W1 tool steel = 100%
Charpy Impact	16.3 J	12.0 ft-lb	1190°C Hardening Temperature, 550°C Tempering Temperature; 67 Rockwell Hardness C
	17.6 J	13.0 ft-lb	1150°C Hardening Temperature, 550°C Tempering Temperature; 65.6 Rockwell Hardness C

Thermal Properties	Metric	English	Comments
CTE, linear	11.2 µm/m-°C @Temperature 38.0 - 260 °C	6.22 µin/in-°F @Temperature 100 - 500 °F
	12.4 µm/m-°C @Temperature 38.0 - 540 °C	6.89 µin/in-°F @Temperature 100 - 1000 °F
Shrinkage	0.22 %	0.22 %	During hardening; 1190°C Hardening Temperature, 550°C Tempering Temperature, 67.5 Rockwell C Hardness

Component Elements Properties	Metric	English	Comments
Carbon, C	1.35 %	1.35 %
Chromium, Cr	3.75 %	3.75 %
Iron, Fe	75.5 %	75.5 %	As Balance
Manganese, Mn	0.35 %	0.35 %
Molybdenum, Mo	10.5 %	10.5 %
Silicon, Si	0.25 %	0.25 %
Sulfur, S	<= 0.035 %	<= 0.035 %
Tungsten, W	6.25 %	6.25 %
Vanadium, V	2.0 %	2.0 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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NCRUC107 / 16071

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