Welding Gases (Acetylene, Shielding Mix): Market Size & Forecast 2026

The global welding gases category sits at approximately USD 14.5 billion in 2025 (base year), with the shielding-mix and acetylene welding gas segments moving together in a balanced supply-demand state. Argon-based mixes (Ar/CO2, Ar/O2, Ar/He) account for roughly 55% of the mix consumed, acetylene for the fuel-gas applications of oxy-fuel cutting and brazing, and pure CO2 for the cost-driven MIG segment. Cylinder gas reference pricing hovers in the order of USD 180 per typical C-25 cylinder package, with feedstock (argon, CO2, acetylene) carrying 52% of finished cost and cylinder package + filling logistics carrying another 32% combined. > **Analyst Take. Our view: the consensus 5.2% CAGR looks reasonable against the construction and shipbuilding demand picture, but the smarter call is a 3-4% central case with a 6-7% upside if shipbuilding capacity additions in Korea and China draw on cy

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