1.4501, UNS S32760 Super Duplex Stainless Steel
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Especificación, química y rendimiento mecánico
Aleaciones Resistentes a la Corrosión
UNS S32760, 1.4501, Super Duplex Stainless Steel
1.4501, S32760 is a super duplex stainless steel with a pitting resistance equivalent (PRE) number of more than 40, and provides excellent corrosion resistance and strength properties. In comparison with UNS S32205, SUS 329J3L, and SUS 329J4L (NAS 64), it offers superior localized corrosion resistance, and thus is suitable for use in chemical plants, seawater desalination plants, and similar severe environments. We supplies this product in plate form.
Other from welcome custom inquiry, producing take 5-12 days finishing.
trabajabilidad
Regarding cold workability, care is required as proof stress is high and elongation is low in comparison with Type 304.
soldabilidad
In welding, the interpass temperature should be no more than 100℃ in order to prevent formation of intermetallic compounds. Preheating is not necessary. Welding consumables for UNS S32760 should be used.
Tratamiento térmico
After heating to a solution treatment temperature of 1080~1120℃ (ASTM standard requires above 1100℃), quenching is necessary. Cooling must be performed as rapidly as possible so as to minimize the duration of the material’s exposure to the embrittlement temperature range (475℃ embrittlement, σ phase embrittlement).
Decapado
A mixture of nitric acid and fluoric acid is used in pickling. However, because descaling is somewhat difficult in comparison with Type 304, alkali immersion before acid pickling, and if possible, shot blasting are extremely effective.
Aplicaciones
Chemical plant, Chemical tanker, Seawater desalination system, Seawater pump
