In Q3 2026, China’s green environmental renovation drive continues to deepen. Projects including ultra-low emission transformation of industrial flue gas, quality upgrading of desulfurization and denitrification systems, and comprehensive environmental improvement of factory premises are steadily launched nationwide. Material demand for supporting equipment such as flue gas treatment units, waste gas scrubbers and dust removal purifiers maintains steady growth, expanding the application scenarios and steadily lifting market penetration of carbon steel-stainless steel clad plates in the field of industrial flue gas anti-corrosion. At present, national and local environmental governance standards have been continuously refined and upgraded. Outdated low-standard environmental equipment with simple anti-corrosion treatment can no longer meet current regulatory requirements and are being fully phased out. Long-lasting, stable anti-corrosion materials with low operation and maintenance costs have become the primary choice for all types of environmental engineering projects.
Industrial flue gas treatment equipment operates long-term under harsh complex corrosive environments featuring high temperature, high humidity, sulfur and dust. Anti-corrosion coatings on ordinary carbon steel plates are prone to aging, blistering and peeling, leading to extremely high equipment repair rates. Frequent shutdowns for maintenance not only raise enterprises’ operation costs, but also directly disrupt continuous production of production lines. Although solid stainless steel plates deliver outstanding anti-corrosion performance suitable for complex flue gas working conditions, their high procurement and equipment manufacturing costs limit large-scale popularization. Carbon steel-stainless steel clad plates integrate the core advantages of both materials: the stainless steel cladding resists flue gas corrosion, while the carbon steel substrate guarantees structural strength and pressure bearing capacity of equipment, perfectly matching long-term operation requirements of scrubber towers, dust removal cabinets, tail gas treatment storage tanks and other facilities with remarkable comprehensive service advantages.
Judging from recently launched environmental projects, the current market is dominated by scattered small and medium-sized quality upgrading projects in industrial parks, characterized by diversified specifications, small single-batch volume and flexible delivery cycles, which highly align with the dual supply mode of spot stock supply and on-demand customization of clad plates. Material selection in the industry has also become more refined and scientific. For conventional normal-temperature low-sulfur flue gas conditions, 304-clad plates with superior cost performance are widely adopted; for complex flue gas environments with chlorine, high temperature and strong corrosion, 316L clad plates with stronger corrosion resistance are prioritized to precisely match working conditions and avoid redundant material performance or insufficient anti-corrosion capacity.
Currently, demand for domestic industrial green low-carbon and ultra-low emission transformation is continuously released. Comprehensive waste gas treatment and standard flue gas emission have become standard mandatory requirements for industrial parks, while outdated simple environmental equipment has been completely withdrawn from the market. Clad plates featuring long-term anti-corrosion performance and no frequent maintenance have become the preferred material for engineering designers. Compared with short-term anti-corrosion processes such as paint coating and rubber lining on traditional carbon steel, clad plates adopt integrated metallurgical bonding molding, with anti-corrosion layers resistant to peeling and extended service life. They eliminate frequent maintenance shutdowns, fully guarantee continuous large-scale production of enterprises, and highly fit the industrial development trend of stable green production, cost reduction and efficiency improvement.