Outokumpu 1.4509
Type X2CrTiNb18 stainless steel: EN 1.4509, UNS S43940, "AISI 441"
- Stabilized both with titanium and niobium (columbium)
Applications
- Tubular products for automotive industry and for process equipment like heat exchangers are the main application areas.
- This material is used also in architectural applications, like elevators and door frames. Additionally, various structures in catering and household are among the application areas.
- High chromium content makes this grade well suited for some selected applications for replacing standard austenitic grades.
Welding
- Conventional welding methods and filler materials applied to austenitic 300-series can be used. Heat input in welding should been kept in a minimum level.
- Generally welded structures show lower ductility compared to that of base material.
Forming and machining
- Grade 1.4509 can be formed using typical forming processes like folding, bending, drawing, etc.
- It has slightly higher proof strength than standard austenitic stainless steel grade 1.4301 / AISI 304 in combination with lower work hardening.
- Due to the titanium stabilization, its r-value is higher compared to non-stabilized ferritic stainless steel.
- These characteristics means excellent deep-drawability.
Corrosion resistance
- Outokumpu produces grade 1.4509 typically with a chromium content of about 18 wt-%.
- Titanium and niobium alloying reduces sensitivity for intergranular corrosion.
- Relatively high chromium content improves resistance to crevice corrosion that is better when compared to some other ferritic stainless steels, like 1.4016.
- Oxidation resistance is good up to 950°C.
- In chloride containing environments pitting and crevice corrosion is possible depending on various parameters like chloride concentration, temperature, pH value, redox potential, crevice geometry and others.
- The best material performance is reached usually with the help of adequate design, correct post-weld treatment and regular cleaning during use (if applicable).
Propriétés générales
Consultez la fiche technique complète de Outokumpu 1.4509 en créant gratuitement votre compte Prospector. Vous y trouverez des informations exhaustives sur les propriétés physiques et mécaniques et sur la dureté
Technical Datasheet (English)
Télécharger le documentTraitement en cours
Find specific processing information for Outokumpu as well as general information for the Steel - Wrought - Stainless - Ferritic generic family. S’inscrire ou Connexion pour en savoir plus.
Où acheter
Vous pouvez acheter Outokumpu 1.4509 auprès de 1 distributeurs ou fabricants. S’inscrire ou Connexion pour en savoir plus.
Fonctions Premium
PROSPECTOR
Trouvez des solutions, pas seulement des matériaux..
Avec Prospector, vous disposez d’outils et de fonctions dynamiques qui vous permettront de trouver des solutions au plus vite.
S’inscrire aujourd’hui
