Vanadis 4 Extra

Vanadis 4 Extra is a powder metallurgical cold work tool steel produced by Uddeholms AB. It is characterized by a combination of wear and chipping resistance and is particularly suitable for high volume production tooling for production materials such as annealed austenitic stainless steel, mild carbon steel, copper and aluminium.

International standards comparison chart^[1]

Grade name	AISI (USA)	BS4659 (GB)	W.-Nr. (Germany)	SS (Sweden)	JIS (Japan)
Vanadis 4 Extra	-	-	-	-	-

Chemical composition

Grade name	C	Si	Mn	Cr	Mo	Ni	V	S
Vanadis 4 Extra	1.40	0.4	0.4	4.7	3.5	-	3.7	-

Properties^[2]

Vanadis 4 Extra is a chromiummolybdenum-vanadium alloyed steel which is characterized by high to very high:

• ductility
• abrasive-adhesive wear resistance
• compressive strength
• dimensional stability during heat treatment and in service
• through-hardening properties
• temper back resistance
• machinability and grindability

Application areas

This tool steel 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
• high strength work materials

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.

Examples:

• Blanking and forming
• Fine blanking
• Cold extrusion tooling
• Powder pressing
• Deep drawing
• Knives
• Substrate steel for surface coating

Other Uddeholm Cold Work Steels

Arne, Caldie, Calmax, Rigor, Sleipner, Sverker 3, Sverker 21, Unimax, Vanadis 6, Vanadis 10, Vanadis 23, Vancron 40, UHB 11, Formax, Holdax,

References

1. Pocket Book: The Uddeholm range of tooling materials, Third Edition, 03.2011
2. Vanadis 4 Extra, Uddeholms AB, Fifth Edition, 09.2010