The global weathering steel market size is estimated at USD 2.89 Billion in 2025. It can reach a valuation of USD 4.01 Billion by 2032, by exhibiting a CAGR of 4.8% throughout the forecast period (2025-2032).  

The adoption of corrosion-resistant materials in construction, transport, and infrastructure development sectors, and the use of weathering steel in the construction of facades, bridges, railway systems, and outdoor structures.

However, the high initial costs of weathering steel compared to other types of steel can limit the market growth.

Key Market Insights

The weathering steel market is predicted to be shaped by advances in fabrication and design technologies, coupled with the incorporation of corten steel in green buildings.

• By product, the sheet segment is expected to capture a 22% share of the market in 2025. Its versatility and wide use in construction and architectural projects can rivet its segment growth over the forecast period.
• By end use, the automotive segment is anticipated to retain 14.0% market share in 2025. The segment growth is driven by the use of weathering steel in the manufacturing of truck frames, vehicle bodies, and shipping containers. With the focus on durability and reduction on environmental impact, the automotive sector can contribute significantly to the weathering steel market growth.
• By geography, the Asia Pacific region is projected to exhibit the fastest growth rate during the forecast period. Large-scale infrastructure government programs in India, China, and Japan are expected to be the primary driver of the market in the region.

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Weathering Steel Market Report Coverage

Market Dynamics

The investments in government infrastructure projects for strengthening cities and connecting urban areas require the use of weather-resistant alloys. The development of aging bridges and railway lines by governments can drive the demand for weathering steel or corten steel. For instance, the Make in India initiative launched in September 2014 to make India self-reliant, has brought in different types of steel under its purview. The certification accorded to various steels can reduce the reliance on imports and shift the reliance on domestic manufacturers to feed the demand. The corrosion resistance of corten steel and its use in railway bridges can drive the weathering steel market growth over the forecast period.

The demand for sustainability in material choices in construction can drive additional demand in the weathering steel market. The self-weathering properties of corten steel and its use in modern architectures can augur favorably for the market. On April 02, 2025, Atelier Schwimmer designed a mountain retreat with exterior corten facades in Quebec due to its durability and resilience.

Market Opportunity: Corten Steel Planters in Gardening

The use of corten steel planters, due to its ability to blend with natural landscapes, can open new opportunities for the weathering steel market. The influence of social media has brought corten steel planters to the forefront of gardening. The benefits of weather resistance, tensile strength, and low maintenance is expected to lead to a surge in demand for these planters in modern gardens.

Market Challenge: Initial Surface Treatment of Corten Steel

The initial surface treatment of corten steel needs to undergo sunlight exposure at the right environmental conditions, or it risks losing its corrosion resistance feature. This may lead to a loss of desired protective patina. Improper detailing, such as poor drainage or nearby staining of materials, can also reduce its resistance. The high attention to detail required for this type of steel can be a challenge for the weathering steel market.

Analyst’s View

• The lack of frequent repainting and the use of corten steel in urban projects can drive the demand in the weathering steel market.
• The automotive segment is expected to be one of the key end users in 2025, due to the adoption of weathering steel in the manufacture of car bodies and truck frames.
• The increasing investments in research and development and production capacities of weathering steel are the main objectives of key market players.

Recent Development

Neri&Hu, a China-based architecture and design firm, revitalized a compound comprising six office buildings into a creative complex called the Yard. It began refurbishing in November 2018 and finished in May 2025. It used weathering steel as the primary surfacing material to blend with existing facades.  

Competitor Insights

• Masteel UK
• ArcelorMittal S.A.
• SSAB Corporation
• BlueScope Steel Ltd.
• Central Steel Service
• Nippon Steel Corporation
• POSCO (formerly Pohang Iron and Steel Company)
• United States Steel Corporation
• JFE Steel Corporation
• Zahner Company
• HBIS Group
• Tata Steel
• JFE Steel Corporation

Market Segmentation

• By Product
• Plate
• Sheet
• Coil
• Angles
• Beams
• Bars
• By End Use
• Construction
• Automotive
• Infrastructure
• Energy
• Mining
• Heavy Equipment

Regional Insights

• North America
  • U.S.
  • Canada
• Latin America
  • Brazil
  • Argentina
  • Mexico
  • Rest of Latin America
• Europe
  • Italy
  • Germany
  • U.K.
  • Spain
  • Russia
  • France
  • Rest of Europe
• Asia Pacific
  • South Korea
  • India
  • China
  • Japan
  • Australia
  • ASEAN
  • Rest of Asia Pacific
• Middle East
  • GCC Countries
  • Israel
  • Rest of Middle East
• Africa
  • South Africa
  • North Africa
  • Central Africa