SUS 329J3L, S31803, S32205, 1.4462, Duplex en acier inoxydable
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Spécification, Chemical & Performance mécanique
Alliages résistants à la corrosion
1.4462, SUS 329J3L, UNS S31803 / S32205 - Duplex Stainless Steel
SUS 329J3L, UNS S32205, S31803 is an Austenitic-ferritic stainless steel, which has superior corrosion resistance and high strength. It has better localized corrosion resistance than Type 316L and 317L, and the steel is applied in the industrial fields like chemical plant, seawater desalination plant, seawater pump, and so on. We supplies this product in plate, sheet and strip form.
Other from, you can eamil to [EMAIL PROTECTED], we will custom produce for you, usually take 5-10 days.
Manque de maniabilité
High temperature strength is similar to Type 430 in the range of 1150~950℃. However the steel shows rapid increase in the strength below 900℃. Regarding cold workability, care is required as proof stress is high and elongation is low in comparison with Type 304.
Soudabilité
Various welding methods are applicable in the same manner as with the standard austenitic stainless steels, including shielded metal arc welding, TIG welding, and plasma welding. Same duplex grade type welding consumable should be used.
Traitement thermique
Solution heat treatment should be performed in the range of 1020~1100℃ followed by rapid cooling. Cooling rate should be high in order to shorten the time exposing at temperature range which may cause the brittleness by 475℃ brittlement and σ phase formation.
Le marinage
Un mélange d'acide nitrique et d'acide fluorique est utilisé dans le décapage. Cependant, comme le détartrage est quelque peu difficile par rapport au type 304, l'immersion dans les alcalis avant décapage à l'acide et, si possible, le grenaillage sont extrêmement efficaces.
Applications
- Chemical Plant, Chemical Tanker
- Seawater desalination Plant, Seawater pump
- Thermal power plant flue gas desulfurization plants
- Pulp and paper plants
- pont
Certificat
It is possible to manufacture UNS S32205/S31803 in accordance with the NORSOK standard below. The thickness is up to 50mm.
- M-650
- M-630 MDS D45
