Services / Tray Construction Materials

Tray Construction Materials

Fractionation trays are fabricated from a wide variety of materials. When corrosion is expected to be extremely low and design temperatures are not excessive, carbon steel is a logical choice because of its favorable mechanical design properties, malleability and low cost. However, since the material of construction is dictated by the process of each particular system for which the trays will be used, many different material types may be required because of unique properties which allow some materials to have resistance to corrosion and to maintain their mechanical strength at elevated temperatures.

The most common tray materials that MAPESA utilizes are listed below starting from least expensive:

  • Carbon steel
  • Type 410S stainless steel
  • Type 304 stainless steel
  • Type 316 stainless steel

Other fairly common materials for tray fabrication are as follows:

  • Type 304L stainless steel
  • Type 316L stainless steel
  • Type 317 stainless steel
  • Type 317L stainless steel
  • Type 321 stainless steel
  • Type 347 stainless steel
  • Type 904L stainless steel

MAPESA is also experienced and skilled at tray fabrication, utilizing many of the more exotic materials such as:


  • Titanium
  • Nickel
  • Zirconium
  • AL-6XN
  • Hastelloy
  • Everdur
  • Monel
Number of Flow Paths
Number of Tray Flow Paths
Tower Diameter





Less than 6 Ft. – 0 In.

6 Ft . – 0 In. to 8 Ft. – 5 In.

8 Ft . – 6 In. to 10 Ft. – 11 In.

11 Ft – 0 In. and greater

MAPESA is a ISO 9001:2015 certiefied company