Sverker 21 is a 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...

 manufactured 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 primarily used for Cold Work applications such as blanking, piercing, cropping, bending, forming and cutting.

International standards comparison chart

Grade name	AISI AISI The acronym AISI can stand for:* African Information Society Initiative of UNECA* Alberta Initiative for School Improvement* American Iron and Steel Institute* Agenzia Informazioni e Sicurezza Interna, the internal intelligence agency of Italy...  (USA)	BS4659 (GB)	W.-Nr. (Germany)	SS (Sweden)	JIS (Japan)
Sverker 21	D2	BD2	1.2379	2310	SKD 11

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...
Sverker 21	1.55	0.3	0.4	11.8	0.8	-	0.8	-

Properties

Sverker 21 is characterized by high compressive strength, high
surface hardness after hardening, good though-hardening properties and high wear
resistance (abrasive type of wear profile). These characteristics combine to give a steel
suitable for the manufacture of medium run tooling for applications where abrasive
wear is dominant and the risk of chipping or cracking is not so high, e.g. for blanking and
forming of thinner, harder work materials.

Application areas

It is a 12% chromium steel suitable for medium production volume tooling where the production materials cause abarasive wear and the risk of chipping is not so high.

Other Uddeholm Cold Work Steels

Arne

Arne

In Greek mythology, Arne or Melanippe was a daughter of Aeolus and Melanippe , daughter of Chiron. She was born as a foal as her mother had been transformed into a horse as a disguise, but was returned to the human form and renamed 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

Sleipner

Sleipnir is an eight-legged horse in Norse mythology. Sleipnir or Sleipner may also refer to:Ships and offshore* Sleipner gas field** Sleipner A, an offshore platform...

,
Sverker 3,
Unimax,
Vanadis 4 Extra

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...

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