Vanadis 4 Extra
Encyclopedia
Vanadis 4 Extra is a powder metallurgical
Powder metallurgy
Powder metallurgy is the process of blending fine powdered materials, pressing them into a desired shape , and then heating the compressed material in a controlled atmosphere to bond the material . The powder metallurgy process generally consists of four basic steps: powder manufacture, powder...

 cold work tool steel
Tool steel
Tool steel refers to a variety of carbon and alloy steels that are particularly well-suited to be made into tools. Their suitability comes from their distinctive hardness, resistance to abrasion, their ability to hold a cutting edge, and/or their resistance to deformation at elevated temperatures...

 produced by Uddeholms AB
Uddeholms AB
Uddeholms AB is a multinational producer of high alloyed tool steel with production in Hagfors, Sweden. Since 1991, the company is part of the Austrian Böhler-Uddeholm group which in turn is part of the voestalpine AG group since 2007. Uddeholms AB has 800 employees in Sweden...

. 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
Stainless steel
In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass....

, mild carbon steel, copper
Copper
Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish...

 and aluminium
Aluminium
Aluminium or aluminum is a silvery white member of the boron group of chemical elements. It has the symbol Al, and its atomic number is 13. It is not soluble in water under normal circumstances....

.

International standards comparison chart

Grade name AISI
American Iron and Steel Institute
The American Iron and Steel Institute is an association of North American steel producers. Its predecessor organizations date back to 1855 making it one of the oldest trade associations in the United States. AISI assumed its present form in 1908, with Elbert H...

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

Chemical composition

Grade name C
Carbon
Carbon is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds...

 
Si
Silicon
Silicon is a chemical element with the symbol Si and atomic number 14. A tetravalent metalloid, it is less reactive than its chemical analog carbon, the nonmetal directly above it in the periodic table, but more reactive than germanium, the metalloid directly below it in the table...

 
Mn
Manganese
Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature , and in many minerals...

 
Cr
Chromium
Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable...

 
Mo
Molybdenum
Molybdenum , is a Group 6 chemical element with the symbol Mo and atomic number 42. The name is from Neo-Latin Molybdaenum, from Ancient Greek , meaning lead, itself proposed as a loanword from Anatolian Luvian and Lydian languages, since its ores were confused with lead ores...

 
Ni
Nickel
Nickel is a chemical element with the chemical symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile...

 
V
Vanadium
Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery gray, ductile and malleable transition metal. The formation of an oxide layer stabilizes the metal against oxidation. The element is found only in chemically combined form in nature...

 
S
Sulfur
Sulfur or sulphur is the chemical element with atomic number 16. In the periodic table it is represented by the symbol S. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8. Elemental sulfur is a bright yellow...

Vanadis 4 Extra 1.40 0.4 0.4 4.7 3.5 - 3.7 -

Properties

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
    Blanking and piercing
    Blanking and piercing are shearing processes in which a punch and die are used to modify webs. The tooling and processes are the same between the two, only the terminology is different: in blanking the punched out piece is used and called a blank; in piercing the punched out piece is...

     and forming
    Work hardening
    Work hardening, also known as strain hardening or cold working, is the strengthening of a metal by plastic deformation. This strengthening occurs because of dislocation movements within the crystal structure of the material. Any material with a reasonably high melting point such as metals and...

  • Fine blanking
  • Cold extrusion tooling
  • Powder pressing
  • Deep drawing
    Deep drawing
    Deep drawing is a sheet metal forming process in which a sheet metal blank is radially drawn into a forming die by the mechanical action of a punch. It is thus a shape transformation process with material retention. The process is considered "deep" drawing when the depth of the drawn part exceeds...

  • Knives
  • Substrate steel for surface coating


Other Uddeholm Cold Work Steels

Arne,
Caldie
Caldie
Caldie is a matrix tool steel manufactured by Uddeholms AB for cold work applications with high demands on chipping / cracking resistance and compressive strength...

,
Calmax,
Rigor,
Sleipner,
Sverker 3,
Sverker 21
Sverker 21
Sverker 21 is a tool steel manufactured by Uddeholms AB. It is primarily used for Cold Work applications such as blanking, piercing, cropping, bending, forming and cutting.-International standards comparison chart:-Chemical composition:-Properties:...

,
Unimax,
Vanadis 6,
Vanadis 10,
Vanadis 23,
Vancron 40,
UHB 11,
Formax,
Holdax,
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