Outokumpu Core range Core 4622

Core 4622 (EN 1.4622) is Outokumpu’s ferritic innovation which has many unmatched properties. Core 4622 has improved corrosion resistance due to its high chromium content, and it is comparable to common austenitic grades 304 (EN 1.4301) and 304L (EN 1.4307).

Competitive and stable price

Core 4622 has excellent cost stability compared to Ni-alloyed austenitic grades and Mo-alloyed acid proof grades.

Core 4622 reduces production time of any product that requires forming via a method like deep-drawing. It has better deep drawability than austenitic grades 304 (EN 1.4301) and 304L (EN 1.4307). Because of its low degree of roping, polishing after forming is minimized and easy thus saving both time and money.

One of Core 4622’s most significant advantages over austenitic grades is its very good weldability and machinability due to lower work hardening. This provides longer tooling life and faster machining time. In addition, in welding Core 4622 has a low risk of sensitization due to stabilization, and it has less distortion than austenitic grades due to higher heat transfer.

Upgraded potential

High chromium content makes Core 4622 an ideal choice for replacing standard austenitic grades in many applications such as catering and household products, architectural applications both indoors and outdoors, tubular products for automotive industry and process equipment such as heat exchangers. If lower alloyed ferritic grades meet corrosion problems, Core 4622 brings the needed upgraded potential.

Core 4622 fulfills ASTM UNS S44330.

 

Outokumpu Core 4622 is suitable for a wide variety of applications that require good corrosion resistance, deep-drawability, weldability and machinability.

 

Key benefits of Outokumpu Core 4622

Good corrosion resistance

  • Comparable to common austenitic grades 304 (EN 1.4301) and 304L (EN 1.4307)
  • Stabilization reduces sensitivity for intergranular corrosion in the welds
  • Not susceptible to chloride induced stress corrosion cracking

Good deep drawability

  • Better deep drawability than austenitic grades 304 (EN 1.4301) and 304L (EN 1.4307)
  • Low roping degree provides easy polishing

Good weldability

  • Conventional welding methods and 316L filler metals can be used. Shielding gases should be Ar/He based, mixed with maximum of 2% oxygen. 
  • Less distortions than austenitic grades due to higher heat transfer
  • Stabilization prevents sensitization in the welds

Core 4622

Beschreibung Nickelfreier ferritischer Edelstahl (21Cr) mit hohem Chromanteil, der genauso korrosionsbeständig ist wie Core 304/4301. Core 4622 verfügt über eine ausgezeichnete Tiefziehfähigkeit und ist nahezu gratfrei, was den Werkstoff leichter polierbar macht und somit die Gesamtproduktionskosten verringert.

EN 1.4622

ASTM Typ -

ASTM UNS S44330

Mikrostruktur Ferritisch

Typische Anwendungsbereiche

  • Anwendungen in Haushalt, Gastronomie und Architektur (Innen- und Außenbereich)
  • Rohrprodukte für die Automobil- und die verarbeitende Industrie
  • Gebäudefassaden
  • Tanks und Verarbeitungsanlagen

Datenblatt Hier finden Sie das Core Datenblatt mit mehr Informationen zu Korrosionsbeständigkeit, mechanischen und physikalischen Eigenschaften und Herstellung.

Typische chemische Zusammensetzung, Massenprozent

C 0,02

Cr 21,0

Ni -

Mo -

N -

Sonstige Nb, Ti, Cu

 

Finish EN

Finish ASTM

Thickness (mm)

Width (mm)

1E RAP

1

3.005.50

up to 1500

2E RAP

1

3.004.50

up to 1500

2B

2B

0.500.69

up to 1250

2B

2B

0.803.00

up to 1500

2K

4

0.500.69

up to 1250

2K

4

0.803.00

up to 1500

 

STANDARDS AND APPROVALS

EN 10028-7: 2016

Flat products made of steels for pressure purposes – Part 7: Stainless steels.

Available

PED Directive 2014/68/EU

European Pressure Equipment Directive

Available

ASTM A240/A240M-17

Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Available

ASME SA-240/SA-240M, ASME BPVC.II.A-2017

Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessel and for General Applications

Available

 

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