Aerospace Investment Casting: Super-Alloys Drive High-Value Growth
The aerospace and defense sector remains the largest driver of high-value investment casting, with 80% of modern aircraft engine hot-end components—including turbine blades and casings—produced via this process. Global high-value casting sales for aerospace, defense, and industrial gas turbines reached $11.24 billion in 2024, with North America leading at $6.16 billion.
Super-alloys are the cornerstone of aerospace casting growth, with a projected 5.82% CAGR from 2025-2030. These materials withstand extreme temperatures and corrosion, critical for engine performance. Domestic Chinese manufacturers have made significant strides in single-crystal superalloy blades, increasing domestic aircraft engine casting self-sufficiency to 42% in 2023, up 20 percentage points from 2019.
Aircraft OEM backlogs and rising global defense spending sustain demand, though supply chain bottlenecks pose risks. NATO-aligned countries are increasing military investment, boosting demand for precision cast components. As aerospace manufacturers prioritize fuel efficiency and durability, investment casting’s ability to produce complex, high-precision super-alloy parts will remain irreplaceable.
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