Weathering Steel Global Market Report 2026

Weathering steel refers to a group of low-carbon steels that contain additional alloying elements, along with carbon and iron, developing a protective oxide film on their surface. These steels are utilized for exposed steel structures due to their ability to outlast plain carbon steel in outdoor environments. This characteristic eliminates the need for regular repainting and recoating.

The main types of weathering steel include corten-A, corten-B, and others (such as a604, a606, and others). Corten-A is a weather-resistant steel alloyed with copper, chromium, and nickel. Corten A, with added phosphorous, is particularly suitable for gas flue applications and aesthetic facias. However, it is not recommended for heavy load-bearing applications. Weathering steel is available in various forms, including plates, sheets, bars, and others (coils, rivets, stripes, tubes, and more). These materials come in different colors, both painted and unpainted. Weathering steel finds applications in various industries, including building and construction, transportation, art and architecture, as well as industrial uses like street lights.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report's Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs on weathering steel have impacted the supply and pricing of corten-a, corten-b, and specialty steel products, particularly affecting building and construction, transportation, and industrial segments in asia-pacific, europe, and north america. The tariffs have slowed adoption in certain regions, but have also encouraged local manufacturing, cost-optimized production, and innovations in high-performance and specialty weathering steel alloys.

The weathering steel market research report is one of a series of new reports from The Business Research Company that provides weathering steel market statistics, including weathering steel industry global market size, regional shares, competitors with a weathering steel market share, detailed weathering steel market segments, market trends and opportunities, and any further data you may need to thrive in the weathering steel industry. This weathering steel market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

The weathering steel market size has grown strongly in recent years. It will grow from $1.47 billion in 2025 to $1.58 billion in 2026 at a compound annual growth rate (CAGR) of 7.9%. The growth in the historic period can be attributed to growing demand for low-maintenance steel in construction, increasing use in bridges and infrastructure, early adoption in architectural and art projects, rising popularity of corten-a for structural applications, expansion in heavy machinery components.

The weathering steel market size is expected to see strong growth in the next few years. It will grow to $2.08 billion in 2030 at a compound annual growth rate (CAGR) of 7.2%. The growth in the forecast period can be attributed to advancements in weathering steel alloys, increasing use in sustainable construction projects, rising demand in transportation and industrial applications, growth in customized and specialty weathering steel products, adoption in urban architectural designs and public art. Major trends in the forecast period include enhanced corrosion resistance, increased use in building and construction, rising adoption in transportation infrastructure, expansion in art and architectural applications, growth of specialty weathering steel products.

The expansion of the energy sector is expected to drive the growth of the weathered steel market in the coming years. The energy sector encompasses industries involved in the exploration, production, generation, transmission, distribution, and consumption of energy resources that power economies and societies. This sector is growing primarily due to rising global energy consumption, driven by urbanization and industrial development, which necessitates expanded and upgraded energy infrastructure. The weathered steel market supports this growth by providing corrosion-resistant, durable materials that enhance the lifespan and reduce the maintenance needs of energy infrastructure projects. For example, in June 2025, the U.S. Energy Information Administration (EIA) reported that in 2024, U.S. energy production reached a record 103.3 quadrillion British thermal units (quads), a 1% increase from the previous record set in 2023. As a result, the expansion of the energy sector is driving the growth of the weathered steel market.

Major companies in the weathering steel market are securing funding to support the steel industry's transition toward decarbonization, aimed at improving the sustainability of their operations and developing advanced materials that minimize carbon emissions while ensuring performance and durability. Boston Metal's patented MOE technology employs electricity to convert iron ore into molten steel without generating CO2 emissions. This direct, one-step process is not only environmentally friendly but also adept at processing various grades of iron ore, making it a versatile solution for steel production. For example, in January 2023, ArcelorMittal SA, a Luxembourg-based steel production corporation, received an investment of $36 million in Boston Metal, representing a significant advancement in the steel industry's transition toward decarbonization. This funding is part of a larger $120 million Series C fundraising round aimed at enhancing sustainable steel production technologies. ArcelorMittal intends to lead the decarbonization efforts within the steel industry, which accounts for approximately 7% to 9% of global CO2 emissions from fossil fuels.

In December 2023, Nippon Steel, a Japan-based steel manufacturer and one of the largest steel producers globally, acquired U.S. Steel for $14.1 billion. Through this acquisition, Nippon Steel aims to increase its production capacity in the U.S. and enhance its manufacturing capabilities to address the rising demand for high-quality steel. BlueScope Steel Limited, an Australia-based company, also offers weathering steel. U.S. Steel, a U.S.-based manufacturing firm, developed CORTEN steel, a type of weathering steel that resists corrosion by creating a protective rust layer.

Major companies operating in the weathering steel market report are Arcelor Mittal SA, United States Steel Corporation, Nippon Steel & Sumitomo Metal Corporation, Tata Steel Ltd., Posco India Pvt. Ltd., SSAB AB Corporation, Japan Future Enterprise Steel Corporation, Bluescope Steel Limited, Hebei Iron & Steel Co. Ltd., A. Zahner Company, Metal Sales Manufacturing Corporation, Henan Gang Iron and Steel Co. Ltd., Masteel UK Ltd., Cascadia Metal Ltd., Triton Corp., Amardeep Steel Centre LLP, Steel Dynamics Inc., Ternium SA, TimkenSteel Corp., Voestalpine AG, Wuhan Iron and Steel Group, Baosteel Group Corporation, Taiwan Cement Corporation, Salzgitter AG, Steelscape, Tata BlueScope Steel

Asia-Pacific was the largest region in the weathering steel market in 2025.North America is expected to be the fastest-growing region in the forecast period. The regions covered in the weathering steel market are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa.

The countries covered in the weathering steel market are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The weathering steel market consists of sales of STM A588, A242, A606-4, and Corten. Values in this market are 'factory gate' values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

Weathering Steel Market Global Report 2026 from The Business Research Company provides strategists, marketers and senior management with the critical information they need to assess the market.

This report focuses weathering steel market which is experiencing strong growth. The report gives a guide to the trends which will be shaping the market over the next ten years and beyond.

Reasons to Purchase

• Gain a truly global perspective with the most comprehensive report available on this market covering 16 geographies.
• Assess the impact of key macro factors such as geopolitical conflicts, trade policies and tariffs, inflation and interest rate fluctuations, and evolving regulatory landscapes.
• Create regional and country strategies on the basis of local data and analysis.
• Identify growth segments for investment.
• Outperform competitors using forecast data and the drivers and trends shaping the market.
• Understand customers based on end user analysis.
• Benchmark performance against key competitors based on market share, innovation, and brand strength.
• Evaluate the total addressable market (TAM) and market attractiveness scoring to measure market potential.
• Suitable for supporting your internal and external presentations with reliable high-quality data and analysis
• Report will be updated with the latest data and delivered to you within 2-3 working days of order along with an Excel data sheet for easy data extraction and analysis.
• All data from the report will also be delivered in an excel dashboard format.

Where is the largest and fastest growing market for weathering steel ? How does the market relate to the overall economy, demography and other similar markets? What forces will shape the market going forward, including technological disruption, regulatory shifts, and changing consumer preferences? The weathering steel market global report from the Business Research Company answers all these questions and many more.

The report covers market characteristics, size and growth, segmentation, regional and country breakdowns, total addressable market (TAM), market attractiveness score (MAS), competitive landscape, market shares, company scoring matrix, trends and strategies for this market. It traces the market's historic and forecast market growth by geography.

• The market characteristics section of the report defines and explains the market. This section also examines key products and services offered in the market, evaluates brand-level differentiation, compares product features, and highlights major innovation and product development trends.
• The supply chain analysis section provides an overview of the entire value chain, including key raw materials, resources, and supplier analysis. It also provides a list competitor at each level of the supply chain.
• The updated trends and strategies section analyses the shape of the market as it evolves and highlights emerging technology trends such as digital transformation, automation, sustainability initiatives, and AI-driven innovation. It suggests how companies can leverage these advancements to strengthen their market position and achieve competitive differentiation.
• The regulatory and investment landscape section provides an overview of the key regulatory frameworks, regularity bodies, associations, and government policies influencing the market. It also examines major investment flows, incentives, and funding trends shaping industry growth and innovation.
• The market size section gives the market size ($b) covering both the historic growth of the market, and forecasting its development.
• The forecasts are made after considering the major factors currently impacting the market. These include the technological advancements such as AI and automation, Russia-Ukraine war, trade tariffs (government-imposed import/export duties), elevated inflation and interest rates.
• The total addressable market (TAM) analysis section defines and estimates the market potential compares it with the current market size, and provides strategic insights and growth opportunities based on this evaluation.
• The market attractiveness scoring section evaluates the market based on a quantitative scoring framework that considers growth potential, competitive dynamics, strategic fit, and risk profile. It also provides interpretive insights and strategic implications for decision-makers.
• Market segmentations break down the market into sub markets.
• The regional and country breakdowns section gives an analysis of the market in each geography and the size of the market by geography and compares their historic and forecast growth.
• Expanded geographical coverage includes Taiwan and Southeast Asia, reflecting recent supply chain realignments and manufacturing shifts in the region. This section analyzes how these markets are becoming increasingly important hubs in the global value chain.
• The competitive landscape chapter gives a description of the competitive nature of the market, market shares, and a description of the leading companies. Key financial deals which have shaped the market in recent years are identified.
• The company scoring matrix section evaluates and ranks leading companies based on a multi-parameter framework that includes market share or revenues, product innovation, and brand recognition.

Scope

• Markets Covered:1) By Type: Corten-A; Corten-B; Other Types
• 2) By Form: Plates; Sheets; Bars; Other Forms
• 3) By Availability: Painted; Unpainted
• 4) By End Use: Building And Construction; Transportation; Art And Architecture; Industrial; Other End Uses
• Subsegments:
• 1) By Corten-A: Structural Steel Applications; Architectural Uses
• 2) By Corten-B: Heavy Machinery Components; Bridge Construction
• 3) By Other Types: Custom Weathering Steel Alloys; Specialty Weathering Steel Products
• Companies Mentioned: Arcelor Mittal SA; United States Steel Corporation; Nippon Steel & Sumitomo Metal Corporation; Tata Steel Ltd.; Posco India Pvt. Ltd.; SSAB AB Corporation; Japan Future Enterprise Steel Corporation; Bluescope Steel Limited; Hebei Iron & Steel Co. Ltd.; A. Zahner Company; Metal Sales Manufacturing Corporation; Henan Gang Iron and Steel Co. Ltd.; Masteel UK Ltd.; Cascadia Metal Ltd.; Triton Corp.; Amardeep Steel Centre LLP; Steel Dynamics Inc.; Ternium SA; TimkenSteel Corp.; Voestalpine AG; Wuhan Iron and Steel Group; Baosteel Group Corporation; Taiwan Cement Corporation; Salzgitter AG; Steelscape; Tata BlueScope Steel
• Countries: Australia; Brazil; China; France; Germany; India; Indonesia; Japan; Taiwan; Russia; South Korea; UK; USA; Canada; Italy; Spain.
• Regions: Asia-Pacific; South East Asia; Western Europe; Eastern Europe; North America; South America; Middle East; Africa
• Time Series: Five years historic and ten years forecast.
• Data: Ratios of market size and growth to related markets, GDP proportions, expenditure per capita,
• Data Segmentations: country and regional historic and forecast data, market share of competitors, market segments.
• Sourcing and Referencing: Data and analysis throughout the report is sourced using end notes.
• Delivery Format: Word, PDF or Interactive Report
• + Excel Dashboard
• Added Benefits
• Bi-Annual Data Update
• Customisation
• Expert Consultant Support

Added Benefits available all on all list-price licence purchases, to be claimed at time of purchase. Customisations within report scope and limited to 20% of content and consultant support time limited to 8 hours.