We fabricated (8) Elliptical heads out of 2507 super duplex that were 117.92 “OD x 0.875″ nominal thickness and were solution annealed at over 2100 degrees Fahrenheit with a 25 RA max polish on the interior. We also had 2101 jacket heads that matched them that were annular spaced to +/- 1/4” throughout the head.

Anybody that has formed 2507 heads would say the likelihood of cracking is extremely high. Through extensive R&D, we refined the process by working with steel mills, metallurgists, testing labs, and our experienced in house staff to establish a procedure for forming 2507 without cracking.

Award Name

Special Fabrication

Award Year


Product Details

  • (8) 2507 Super Duplex Heads for Chemical Application
  • Cincinnati, OH

Date Completed

June 1, 2022

Construction Standard

ASME Section 8; Div 1

Overall Height

3' -0"


9' -9.92"

Steel Tonnage Used


Steel Thickness