Vd-TÜV Alloys | 1.4439 | VdTÜV405

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Description

1.4439 (VdTÜV 405) is a highly corrosion-resistant austenitic stainless steel alloyed with molybdenum and nitrogen, offering excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-rich and acidic environments. This material is ideal for use in industries such as chemical processing, marine engineering, and pharmaceutical production, where durability and reliability are crucial. Typical applications include heat exchangers, pressure vessels, piping systems, and components exposed to aggressive media. With excellent weldability and good machinability, 1.4439 is well-suited for producing complex, high-performance components. At Rosswag, this steel is processed through advanced open-die forging and precision machining, delivering tailored solutions with superior mechanical and corrosion-resistant properties for demanding industrial applications.

Material-Category

Vd-TÜV Alloys

Material-No.

1.4439

Designation

VdTÜV405

Geometries & Products

  • Forged rings
  • Rolled rings
  • Forged disks
  • Rolled disks
  • Bushes
  • Square parts
  • Shafts
  • Stepped shafts
  • Open-die forgings
  • Individual complex geometries
Services
Industries

Max. operating weight

  • 4000 kg

Max. ring diameter

  • 3000 mm

Acceptances

  • 2.2 Certificate
  • 3.1 Certificate
  • 3.2 Certificate
  • 3.2 Certificate with TÜV Süd
  • 3.2 Certificate with TÜV Nord
  • 3.2 Certificate with DNV (Det Norske Veritas)
  • 3.2 Certificate with ABS (American Bureau of Shipping)
  • 3.2 Certificate with Lloyds Register of Shipping
  • 3.2 Certificate with RINA (Registro Italiano Navale) 
  • 3.2 Certificate with BV (Bureau Veritas)
  • 3.2 with SVTI (Schweizerischer Verein für technische Inspektionen)
  • 3.2 with IBR (Indian Boiler Regulation)
  • 3.2 with LRQA
Certificates and Standards

Process

Processing status

raw / unmachined

pre- machined

finish machined according to drawing

How can we help you?

Do you have questions about the feasibility of a project? Then simply contact us directly!

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