• ICS will be closed for the Christmas and New Year period from 12pm, 22 Dec - 9 Jan 2023

Lynas Rare Earths Hopper

ICS was tasked by PIV’s Engineering Pty Ltd and BMH Global to pickle and passivate two large hoppers in compliance with ASTM A380 and A967. The post fabrication treatment was performed at ICS’s Forrestdale workshop within time and on budget.

Upon completion ICS issued a certificate of conformity to verify the treatment performed. The hopper will soon commence its working life at one of Lynas Rare Earth’s mine site.


  • Removed surface contaminants that would otherwise have caused premature tea staining and corrosion.
  • Treated the heat affected areas that would otherwise be a point of corrosion.
  • Reformed the passive/chromium layer that gives the stainless steel its corrosion. resistant properties.
  • Treatment performed was for all surfaces inside and out.


  • Increased durability and longevity.
  • Reduced tea staining and corrosion.
  • Increase the corrosion resistance of the stainless steel.
  • Reduced maintenance and cost of ownership.
  • Will enable the stainless steel to perform at its optimum best for longer.

If durability longevity, low cost of ownership and maintenance are important factors pickling and passivation in compliance with ASTM A380 and A967 is critical to achieving these outcomes.