Bohler-Uddeholm UDDEHOLM VANADIS 4 EXTRA® Powder Metallurgically Produced Tool Steel

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Bohler-Uddeholm UDDEHOLM VANADIS 4 EXTRA® Powder Metallurgically Produced Tool Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; Tool Steel
Material Notes:	Description: Uddeholm Vanadis 4 Extra is a chromiummolybdenum-vanadium alloyed steel Vanadis 4 Extra is characterized by: Very good ductility High abrasive-adhesive wear resistance High compressive strength Good dimensional stability during heat treatment and in service Very good through hardening properties Good temper back resistance Good machinability and grindability Applications:Uddeholm Vanadis 4 Extra is especially suitable for applications where adhesive wear and/or chipping are the dominating failure mechanisms, i.e.with soft/adherent materials such as austenitic stainless steel, mild steel, copper, aluminium, etc.as work material; with thicker work material and high strength work materials. Uddeholm Vanadis 4 Extra is however also very suitable for blanking and forming of Ultra High Strength Steel Sheet, these materials place high demands on the tool steel regarding abrasive wear resistance and ductility.
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Physical Properties	Original Value	Comments

Density	0.278 lb/in³	hardened to 60 HRC

Mechanical Properties	Original Value	Comments
Hardness, Brinell	230	Soft annealed
Modulus of Elasticity	29800 ksi	(hardened to 60 HRC)
	26800 ksi @Temperature 399 °C	hardened to 60 HRC
	29000 ksi @Temperature 199 °C	hardened to 60 HRC
Impact Test	37.0 J	HRC 65, unnotched
	47.0 J	HRC 63, unnotched
	57.0 J	HRC 61, unnotched
	67.0 J	HRC 59, unnotched
	77.0 J	HRC 57, unnotched
	97.0 J	HRC 55, unnotched

Thermal Properties	Original Value	Comments
CTE, linear	6.00 µin/in-°F @Temperature 199 °C	hardened to 60 HRC
	6.50 µin/in-°F @Temperature 399 °C	hardened to 60 HRC
Specific Heat Capacity	0.110 BTU/lb-°F @Temperature 20.0 °C	hardened to 60 HRC
Thermal Conductivity	30.0 W/m-K @Temperature 199 °C	hardened to 60 HRC
	30.0 W/m-K @Temperature 399 °C	hardened to 60 HRC

Component Elements Properties	Original Value	Comments
Carbon, C	1.4 %
Chromium, Cr	4.7 %
Iron, Fe	85.9 %	As Balance
Manganese, Mn	0.40 %
Molybdenum, Mo	3.5 %
Silicon, Si	0.40 %
Vanadium, V	3.7 %

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NBUCOR14 / 15483

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