Berg Engineering offers the ASTM E2491 PA Assessment (a.k.a Type B) Blocks in materials like 7075-T6 Aluminum, 1018 Steel, 304 Stainless Steel, and Special Alloys upon request. These blocks, for beam characterization and evaluation of system performance characteristics, are perfect for demonstrations of phased array ultrasonics capabilities. For more information, please contact one of our knowledgeable sales engineers by calling 847-577-3980 or emailing us at info@bergeng.com.