Get current pricing for Astro Metallurgical, 31 Sq. Ft. Astro Met Approx. 31 Sq. Ft. Astro Metallurigcal, Inc. Horizontal Titanium (grade 2) Shell & Tube Heat Exchanger. Carbon Steel Shell Rated 75 Psi/fv @ . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: