The Global Steel for Battery Case Market was valued at USD 6.8 Billion in 2025 and is projected to reach USD 18.4 Billion by 2034, growing at a Compound Annual Growth Rate (CAGR) of 11.8% during the forecast period. This significant growth is propelled by the exponential rise in electric vehicle (EV) production, the expansion of grid-scale energy storage systems, and increasing demand for robust, lightweight, and corrosion-resistant battery housings.

As the global transition to clean energy accelerates, the materials used in battery packs are under intense scrutiny. Steel remains a critical material due to its mechanical strength, cost-effectiveness, and recyclability. In this blog, we profile the Top 10 Companies in the Steel for Battery Case Industry—a group of global steel giants and specialty manufacturers innovating to meet the stringent demands of the battery sector.

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🔟 1. China Baowu Steel Group Corporation

Headquarters: Shanghai, China
Key Offering: Ultra-High-Strength Steel (UHSS), Coated Steel Strips for Battery Cases

China Baowu is the world’s largest steel producer, with a substantial and growing portfolio of advanced steels for the automotive and energy storage sectors. The company supplies specialized steel strips and sheets that offer excellent formability, weldability, and corrosion resistance for lithium-ion battery casings.

Innovation & Market Position:

• Leading supplier to major EV manufacturers in China and globally

• Significant R&D investments in lightweight, high-strength steel alloys

• Integrated production capabilities from raw material to finished coated steel

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9️⃣ 2. ArcelorMittal

Headquarters: Luxembourg City, Luxembourg
Key Offering: Usibor® and Ductibor® for Battery Packs, Laser-Welded Blanks

ArcelorMittal is a global leader in advanced steel solutions for the automotive industry. Its products for battery cases are designed to provide superior crash protection and thermal management while minimizing weight, which is critical for maximizing EV range.

Innovation & Market Position:

• Pioneer in press-hardened steels (PHS) for battery pack safety structures

• Global manufacturing footprint ensuring supply chain resilience

• Focus on sustainable steel production with reduced carbon footprint

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8️⃣ 3. Nippon Steel Corporation

Headquarters: Tokyo, Japan
Key Offering: High-Tensile Strength Steel Sheets, Corrosion-Resistant Coated Steels

Nippon Steel is a key supplier to Japan’s leading automotive and battery manufacturers. The company develops advanced steel grades that meet the demanding specifications for battery cases, including resistance to vibration, thermal expansion, and external impacts.

Innovation & Market Position:

• Strong partnerships with Japanese automotive OEMs and battery giants like Panasonic and Toyota

• Development of non-oriented electrical steel for battery and motor applications

• Leading expertise in surface treatment technologies for enhanced durability

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Steel for Battery Case Market – View in Detailed Research Report

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7️⃣ 4. POSCO

Headquarters: Pohang, South Korea
Key Offering: PosMAC (Mg-Al-Zn Alloy Coated Steel), GIGA STEEL for Batteries

POSCO, a leading South Korean steelmaker, is a major force in supplying materials for the battery industry. Its PosMAC product offers exceptional corrosion resistance, which is vital for protecting battery cells from environmental factors, thereby extending their lifespan.

Innovation & Market Position:

• Strategic supplier to Korean battery leaders like LG Energy Solution, Samsung SDI, and SK On

• Investment in developing thinner, stronger steels to reduce battery pack weight

• Focus on green steel production using hydrogen reduction technology

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6️⃣ 5. Tata Steel

Headquarters: Mumbai, India
Key Offering: Automotive Grade Steel Strips, Galvanized Steel for Battery Housings

Tata Steel has a strong presence in the automotive steel market and is rapidly expanding its offerings for the EV battery sector. The company provides high-quality, consistent steel products that support the localization of battery manufacturing, particularly in India and Europe.

Innovation & Market Position:

• Significant investments in European operations to serve the region’s growing EV market

• Development of tailored solutions for two-wheeler and three-wheeler EV battery cases

• Commitment to net-zero carbon emissions by 2045, aligning with EV industry sustainability goals

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5️⃣ 6. JFE Steel Corporation

Headquarters: Tokyo, Japan
Key Offering: JFE-Series High-Strength Steel, Electrogalvanized Steel Sheets

JFE Steel is another Japanese powerhouse specializing in advanced steel products. Its offerings for battery cases are engineered for high precision forming and excellent surface quality, which are essential for the automated production lines of modern battery gigafactories.

Innovation & Market Position:

• Advanced R&D in steel metallurgy for improved battery safety and performance

• Strong technical support and co-engineering services for battery pack designers

• Global supply chain capabilities to support international battery cell manufacturers

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4️⃣ 7. ThyssenKrupp Steel

Headquarters: Essen, Germany
Key Offering: Mild and High-Strength Steels, Custom-Blanked Components

ThyssenKrupp Steel is a leading European supplier with deep expertise in automotive applications. The company provides a wide range of steel grades suitable for battery trays, covers, and structural components, focusing on solutions that enhance the safety and integrity of the battery pack.

Innovation & Market Position:

• Key partner for German and European automotive OEMs in their electrification strategies

• Development of integrated solutions, including pre-processing and blanking services

• Leadership in carbon-reduced steel production via the “tkH2Steel” initiative

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3️⃣ 8. SSAB

Headquarters: Stockholm, Sweden
Key Offering: SSAB Domex® and Hardox® for Heavy-Duty Battery Enclosures

SSAB is renowned for its high-strength and wear-resistant steels. While traditionally focused on construction and mining, its steels are increasingly used for robust battery cases in commercial vehicles, buses, and off-highway electric equipment where durability is paramount.

Innovation & Market Position:

• Pioneer in fossil-free steel production (HYBRIT technology)

• Strong focus on applications requiring extreme toughness and impact resistance

• Growing portfolio for the electrification of the heavy transport sector

Download FREE Sample Report:
Steel for Battery Case Market – View in Detailed Research Report

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2️⃣ 9. Angang Steel Company Limited (Ansteel)

Headquarters: Anshan, Liaoning, China
Key Offering: Cold-Rolled Steel Strips, Hot-Dip Galvanized Steel for Batteries

Ansteel is one of China’s largest and oldest steel producers, with a significant role in supplying the domestic EV supply chain. The company provides cost-effective and reliable steel materials that meet the growing demand for battery cases from Chinese EV makers.

Innovation & Market Position:

• Major domestic supplier supporting China’s position as the world’s largest EV market

• Continuous improvement in product quality and consistency for mass production

• Investment in upgrading facilities to produce higher-value automotive steels

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1️⃣ 10. Baoshan Iron & Steel Co., Ltd. (Baosteel)

Headquarters: Shanghai, China
Key Offering: Advanced High-Strength Steel (AHSS), Electrically Galvanized Steel

As a core subsidiary of China Baowu, Baosteel is a technology leader in premium steel products. It supplies sophisticated steel solutions to top-tier battery and automotive customers, with a strong emphasis on innovation and technical service.

Innovation & Market Position:

• Develops proprietary steel grades with optimized properties for battery welding and sealing

• Extensive R&D capabilities focused on the material science of battery enclosures

• Strategic partnerships for developing next-generation battery case materials

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Steel for Battery Case Market – View in Detailed Research Report

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🔋 Outlook: The Future of Steel for Battery Cases Is Smarter and More Integrated

The steel for battery case market is evolving rapidly, driven by the relentless pace of innovation in the electric mobility and energy storage sectors. While steel’s inherent advantages ensure its continued dominance, the industry is pushing towards lighter, stronger, and more sustainable solutions.

📈 Key Trends Shaping the Market:

• Lightweighting: Development of third-generation Advanced High-Strength Steels (AHSS) and ultrafine-grain steels to reduce battery pack weight without compromising safety.

• Multi-Material Solutions: Integration of steel with aluminum and composites in hybrid battery enclosures to optimize performance and cost.

• Sustainability: Accelerated adoption of green steel produced using hydrogen and electric arc furnaces to lower the carbon footprint of EVs.

• Functional Coatings: Advancements in coating technologies to enhance corrosion resistance, which is critical for battery longevity and safety, especially in harsh environments.

Get Full Report Here:
Steel for Battery Case Market – View in Detailed Research Report

The companies profiled above are not just suppliers of raw materials; they are strategic partners in the global electrification journey, providing the foundational materials that ensure the safety, performance, and reliability of the batteries powering our future.