2026 Industry Update: Solar & Infrastructure Boom Fuels Global Demand for Zn-Al-Mg (ZAM) Corrosion-Resistant Steel

The global push for renewable energy and infrastructure revitalization is reshaping the steel procurement landscape in 2026. Across Europe, Southeast Asia and the Americas, engineering contractors and manufacturers are shifting away from conventional galvanized steel toward high-performance alloy-coated solutions — with zinc-aluminum-magnesium (ZAM) steel emerging as the fastest-growing segment.

Driven by record-breaking photovoltaic (PV) installation volumes worldwide, demand for durable structural steel for solar mounting systems and rooftop projects has spiked. Traditional hot-dip galvanized (GI) steel often suffers from premature rust in coastal, high-humidity or polluted industrial areas, increasing maintenance costs and shortening asset life.

ZAM coated steel, with 5–12 times the corrosion resistance of standard galvanized steel, has become the preferred material for PV projects. Its unique cut-edge self-healing effect also reduces corrosion risk at drilled and cut sections, a common pain point for field-assembled solar structures. Popular grades for solar applications include S350GD+ZM, S550GD+ZM and DX51D+ZM, with coating weights typically ranging from ZM100 to ZM275.

Beyond solar energy, ZAM steel is gaining traction in industrial warehouses, agricultural greenhouses, multi-story car parks and roofing systems. Buyers increasingly prioritize total lifecycle cost over upfront price, and ZAM’s extended service life delivers clear savings on replacement and maintenance.

The full implementation of the EU Carbon Border Adjustment Mechanism (CBAM) has further amplified demand for durable, low-carbon-footprint steel. Longer-lasting ZAM steel reduces replacement frequency and associated embodied carbon emissions, aligning with European green procurement policies and CBAM compliance requirements.

Industry analysts expect global ZAM steel consumption to grow by over 18% in 2026, with thick-coating grades (ZM300+) seeing the fastest growth for heavy-duty applications.

As a top 3 ZAM steel manufacturer in China, CNB New Material maintains 3,000+ tons of daily ready stock of ZAM coils and sheets, covering thickness 0.3–8.0mm and coating weights from ZM40 up to ZM600. We supply full CBAM documentation for European customers and offer custom processing including slitting, shearing and profiling.

👉 Browse our ZAM steel product range or request a free, no-obligation quotation for your next project.