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  • N08904, 1.4539, SUS 890L, Corrosion Resistant Alloys
  • N08904, 1.4539, SUS 890L, Corrosion Resistant Alloys for sale
  • N08904, 1.4539, SUS 890L, Corrosion Resistant Alloys for sale
  • N08904, 1.4539, SUS 890L, Corrosion Resistant Alloys
  • N08904, 1.4539, SUS 890L, Corrosion Resistant Alloys
  • N08904, 1.4539, SUS 890L, Corrosion Resistant Alloys

N08904, 1.4539, SUS 890L, Corrosion Resistant Alloys

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Specification, Chemical & Mechanical Performance

Corrosion Resistant Alloys

UNS N08904, SUS 890L - High Corrosion Resistant Stainless Steel

UNS N08904, SUS 890L is an austenitic stainless steel with superior corrosion resistance in comparison with Type 316L and Type 317L. Due to addition of Cu (1.5%), this material displays excellent corrosion resistance against reducing acids such as sulfuric acid and phosphoric acid. It is used in chemical plants and a wide range of other applications. Shanghai Bozhong Steel Group supplies this product in plate, sheet and strip form.

N08904,-14539,-SUS-890L,-Corrosion-Resistant-Alloys-Professional

Workability

Work similar to that with ordinary austenitic stainless steels is possible.

Weldability

Weldability is on the same level as ordinary austenitic stainless steels. Preheating and post-heating are not necessary. As welding electrodes, in applications under severe corrosion environments, use of welding consumables with equal or higher corrosion resistance is recommended. When the corrosion environment is not severe, and when the purpose of welding is for joining, matching welding consumables may be used.

Heat Treatment

Because NAS 255 is an austenitic stainless steel, heat treatment also conforms to that of standard austenitic stainless steels. The solution heat treatment conditions recommended in JIS G4305 are as follows:

  • Heat treatment condition: 1030~1180℃; Water cooling

Pickling

A mixture of nitric acid and hydrofluoric acid is used in pickling. However, due to the high corrosion resistance of NAS 255, scale is somewhat difficult to remove in comparison with Type 304. Therefore, the material should be immersed in an alkaline solution before pickling, or if possible, shot blasting is extremely effective.

Applications

Sulfuric acid and phosphoric acid plants, seawater heat exchangers, chemical plants, food plants, etc.

 

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