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1.441, S32750 संक्षारण प्रतिरोधी मिश्र

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संक्षारण प्रतिरोधी मिश्र

UNS S32750, 1.441 Super Duplex Stainless Steel

UNS S32750 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, sheet and strip form.

1441,-S32750-Corrosion-Resistant-Alloys-Warranty

Other form we also provide, but custom order 5-15 days finishing. Waiting for your inquiries.

1441,-S32750-Corrosion-Resistant-Alloys-Professional-Manufacturer

workability

Regarding cold workability, care is required as proof stress is high and elongation is low in comparison with Type 304.

जुड़ने की योग्यता

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 S32750 should be used.

उष्मा उपचार

After heating to a solution treatment temperature of 1080~1120℃, 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).

नमकीन बनाना

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.