441 – 1.4509

441 – 1.4509

(South America offer) Titanium-niobium stabilised 17% chromium Ferritic Stainless Steel.

Main features

Good weldability; ease of forming; suitable for surface finishing (polishing, brushing, scotch bright); good resistance to corrosion (in boiler and gas environments), pitting corrosion, and high temperature oxidation (up to 950°C); enhanced hot mechanical properties (without risk of σ phase formation at intermediate temperatures); greater thermal conductivity and lower expansion coefficient than austenitic grades. Delivered by Aperam South America.

Applications

  • Catering kitchen cladding, Trolleys, Work surfaces.
  • Extractor hoods, hobs, oven casings and linings.
  • Sinks.
  • Cooking utensils.
  • Lift doors and cabins.
  • Construction: profiles, fascias, panels, decorative tubes.
  • Domestic boiler burners.
  • Condensing boilers.
  • Fume pipes (chimneys).
  • Exchangers for cold ceiling.
  • Welded structures under mild corrosion conditions or when components are exposed to temperatures of up to 950°C.
441 – 1.4509

Norms

  • AISI 441
  • EN 1.4509
  • IMDS ID 336816606

Chemical Composition

Typical values

  • C=0.01
  • Si=0.5
  • Mn=0.17
  • Cr=17,65
  • P=0.034
  • S=0.01
  • N=0.013
  • Nb=0.04
  • Ti=0.15

Alphanumerical designation X2CrTiNb18

Dimensional range

Coils & Sheets

  • Thickness: from 0.40 to 5.20 mm
  • Width: from 1,000 to 1,250 mm

Tubes

  • Diameter: from 31.75 to 127 mm
  • Thickness: from 1 to 3 mm

Surface finishes

  • Cold rolled & Hot rolled
  • NR1/1D, 2D, 2B, polished

According to thickness.

Additionnal services

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