CASE STUDY: AL-6XN® selected to fabricate 9 distillation trays

AL6-XN® has been used to fabricate 9 distillation trays in the crude oil tower of a major refinery. The previous trays were made of Alloy 400.

AL-6XN® was selected following a thorough regime of testing, where it was found that it provided much higher resistance to corrosion when handling higher sulfur crude oil. It is also much stronger than it’s predecessor.

An added benefit was its low cost, and to provide further additional cost savings for the refinery a lighter gauge of AL-6XN® was used.

The distillation trays made of Alloy AL-6XN® were replaced after 10 years of continuous service, whereas the previous trays – constructed of Alloy 400 – needed to be replaced every 2 years.

AL6-XN®: An overview

AL6-XN® has decades of proven service and is 50% stronger than stainless steel. Due to its high corrosion resistance AL6-XN® is the material of choice for many applications and industries around the world!

Commonly used applications…

  • FGD Scrubbers
  • Reverse Osmosis
  • Distillation Columns
  • Heat Exchangers

Features include…

  • Excellent resistance to pitting and crevice corrosion in chloride solutions
  • Practical immunity to stress corrosion cracking in NaCl environments
  • High strength and toughness

To learn more about AL6-XN® contact us today and we’ll be happy to help!