Global concrete formwork demand keeps growing: USD 6.21 billion in 2025, projected USD 8.37 billion by 2032 (CAGR 4.3%), with metal formwork (aluminum alloy and high-strength steel) expanding at 7.2% CAGR, far outpacing timber. Regional procurement rules are diverging: emerging markets favor standardized, reusable steel formwork with competitive pricing, while Europe, North America, Australia and the Middle East demand certification, material traceability and engineering services. As BIM modeling and digital formwork layout become entry requirements for overseas general contractors, Chinese manufacturers face fragmented standards, price-cutting competition and supply-chain risks. Leading exporters are shifting from product selling to total engineering solutions - regional certification, drawing detailing, on-site support, refurbishment and rental - as competition moves from manufacturing capacity to engineering service capability.

 

 

 

This paper deconstructs the inherent defects of "steel-clad wood" formwork due to stiffness mismatch and internal electrochemical corrosion from the perspective of fundamental engineering physics. It quantitatively compares the mechanical boundaries of aluminum alloy (elastic modulus ~70 GPa) and structural steel (elastic modulus ~210 GPa) under high fluid lateral pressure. Simultaneously, it systematically analyzes the cost-effectiveness of general-purpose Q235 carbon steel, the optimization of section modulus of Q700 high-strength steel under extreme heavy loads, and the microscopic mechanism of "cut self-healing" of a 1.5mm ZAM (zinc-aluminum-magnesium) coating in strongly alkaline concrete environments through electrochemical sacrificial anodes. This provides global EPC contractors with quantitative decision-making basis for life-cycle cost (LCC).