Pipelines under pressure: Preparing CSST systems for hydrogen blends and beyond
15-04-2026
The article argues that as India expands its city gas distribution (CGD) network and pursues hydrogen blending under the National Hydrogen Mission, existing galvanized iron (GI) pipelines pose serious safety risks due to hydrogen-induced embrittlement. With blending targets rising toward 10% by 2030, the author highlights Corrugated Stainless Steel Tubing (CSST) as a safer, more durable alternative for last-mile infrastructure. CSST’s flexibility, leak resistance, and ability to withstand higher hydrogen blends, seismic activity, and extreme conditions make it better suited to India’s urban and environmental challenges. Drawing on successful pilot projects and global examples, the piece emphasises CSST’s efficiency, longevity, and cost advantages. It concludes by urging policy support—through standards, incentives, and domestic manufacturing—to accelerate adoption and ensure a resilient, future-ready gas network.
