• The global ASTM ultrasonic reference blocks market is expected to grow at a 6.0% CAGR from 2026 to 2035.
• The market will reach an index of approximately 170 by 2035.
• Demand is driven by the aerospace, energy, and manufacturing sectors.
• Custom-geometry blocks are growing at 8-10% per year.

The growth of the ASTM ultrasonic reference blocks market may indicate increasing demand for non-destructive testing in various industries, which could benefit manufacturers and suppliers of these blocks. The trend toward custom-geometry blocks suggests a shift toward more specialized and high-value products, which could lead to premium pricing and differentiation opportunities for suppliers.