Top 10 17-4 Stainless Steel Plate Factory in the world 2026

Aug 05, 2026

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Introduction to 17 - 4 Stainless Steel Plate

17 - 4 Stainless Steel Plate, also known as UNS S17400, is a precipitation - hardening stainless steel. It combines high strength, good corrosion resistance, and excellent mechanical properties. The "17" in its name refers to the approximate chromium content (17%), and "4" refers to the nickel and copper content. This type of stainless steel can be heat - treated to achieve different levels of hardness and strength, making it suitable for a wide range of applications, such as aerospace components, valve parts, and marine equipment.


Top 10 Factories

1. Jiangsu Cunrui Metal Products Co., Ltd

Jiangsu Cunrui Metal Products Co., Ltd is a leading manufacturer in the field of stainless steel products, especially 17 - 4 Stainless Steel Plate. The company is committed to providing high - quality products and excellent services to its customers.


Company Introduction

Established in [Year of establishment], Jiangsu Cunrui Metal Products Co., Ltd has a modern production base with advanced production equipment and a professional R & D team. The company adheres to strict quality control systems, from raw material procurement to the final product delivery. It sources high - quality raw materials from reliable suppliers and conducts multiple inspections during the production process to ensure the quality of the 17 - 4 Stainless Steel Plate.


The company has a wide range of product specifications to meet the different needs of customers. Whether it is a small - scale order or a large - scale project, Jiangsu Cunrui Metal Products Co., Ltd can provide timely and efficient solutions. It has established long - term cooperative relationships with many domestic and foreign customers, and its products are well - received in the market.


Features in 17 - 4 Stainless Steel Plate

  • High - Quality Standards: The 17 - 4 Stainless Steel Plate produced by Jiangsu Cunrui Metal Products Co., Ltd meets international quality standards. The company uses advanced production technology to ensure the uniformity of the plate's composition and structure, resulting in stable mechanical properties.
  • Customizable Specifications: The company can customize the size, thickness, and surface finish of the 17 - 4 Stainless Steel Plate according to the customer's requirements. This flexibility allows customers to use the product in various applications.
  • Excellent Corrosion Resistance: Through strict quality control and advanced production processes, the 17 - 4 Stainless Steel Plate has excellent corrosion resistance, which is suitable for use in harsh environments.


Company Advantages

  • Professional Team: The company has a professional R & D and production team with rich experience in the stainless steel industry. They can continuously improve the production process and product quality.
  • Good Reputation: With years of operation, Jiangsu Cunrui Metal Products Co., Ltd has established a good reputation in the market. Customers trust the company's products and services.
  • Convenient Service: The company provides convenient pre - sales and after - sales services. It can provide technical support and solutions to customers in a timely manner.


Website: https://www.cunrui-steels.com/


2. ThyssenKrupp AG

Company Introduction

ThyssenKrupp AG is a German multinational conglomerate with a long history and a strong global presence. It was founded in 1999 through the merger of Thyssen AG and Krupp AG. The company operates in various sectors, including steel production, elevator manufacturing, and automotive components.


In the steel production field, ThyssenKrupp has a high - tech production system. It has state - of - the - art steel mills equipped with advanced rolling and processing equipment. The company invests heavily in research and development to improve the quality and performance of its steel products.


ThyssenKrupp has a wide customer base around the world. It supplies steel products to industries such as automotive, construction, and energy. The company's global distribution network ensures that its products can reach customers in a timely manner.


Features in 17 - 4 Stainless Steel Plate

  • Advanced Production Technology: ThyssenKrupp uses advanced melting and rolling technologies in the production of 17 - 4 Stainless Steel Plate. These technologies can ensure the high purity and fine grain structure of the steel, resulting in excellent mechanical properties.
  • Strict Quality Control: The company has a comprehensive quality control system. Every batch of 17 - 4 Stainless Steel Plate is tested for chemical composition, mechanical properties, and surface quality. Only products that meet the strict quality standards can be released to the market.
  • Innovative Product Design: ThyssenKrupp's R & D team continuously explores new applications and designs for 17 - 4 Stainless Steel Plate. They can develop customized products according to the specific needs of customers.


Company Advantages

  • Global Brand Influence: ThyssenKrupp is a well - known global brand. Its products are widely recognized for their high quality and reliability, which gives it a competitive edge in the market.
  • Strong R & D Capability: The company's large - scale R & D investment enables it to stay at the forefront of technology in the steel industry. It can continuously introduce new products and improve existing ones.
  • Comprehensive Service System: ThyssenKrupp provides comprehensive services, including technical support, product customization, and after - sales service. This helps customers solve various problems during the use of 17 - 4 Stainless Steel Plate.


3. Outokumpu Oyj

Company Introduction

Outokumpu Oyj is a Finnish stainless steel company. It was founded in 1910 and has a long - standing reputation in the stainless steel industry. The company focuses on sustainable stainless steel production and has a strong commitment to environmental protection.


Outokumpu has a modern production facility with advanced manufacturing processes. It uses recycled materials in its production to reduce the environmental impact. The company also has a global sales and service network, which allows it to serve customers in different regions.


The company's product portfolio includes a wide range of stainless steel products, and the 17 - 4 Stainless Steel Plate is one of its key products. Outokumpu has a deep understanding of the market demand for 17 - 4 Stainless Steel Plate and can provide high - quality products to meet the needs of various industries.


Features in 17 - 4 Stainless Steel Plate

  • Sustainable Production: Outokumpu's production of 17 - 4 Stainless Steel Plate is based on sustainable principles. It uses recycled stainless steel as raw material, which reduces energy consumption and carbon emissions.
  • High - Precision Manufacturing: The company's advanced manufacturing equipment can produce 17 - 4 Stainless Steel Plate with high precision in terms of thickness, flatness, and surface finish.
  • Good Formability: The 17 - 4 Stainless Steel Plate produced by Outokumpu has good formability, which is suitable for various processing methods, such as bending, stamping, and welding.


Company Advantages

  • Environmental Leadership: Outokumpu's focus on environmental protection gives it an advantage in the market, especially in regions where environmental regulations are strict.
  • Global Service Network: The company's global service network ensures that customers can get timely support and service, no matter where they are located.
  • Product Innovation: Outokumpu continuously invests in product innovation. It can develop new grades of 17 - 4 Stainless Steel Plate with improved performance to meet the changing market needs.


4. Acerinox S.A.

Company Introduction

Acerinox S.A. is a Spanish multinational company specializing in stainless steel production. It was founded in 1972 and has grown to become one of the largest stainless steel producers in the world. The company has production facilities in Europe, the United States, and Asia.


Acerinox has a vertically integrated production model, which means it controls the entire production process from raw material extraction to the final product. This allows the company to ensure the quality and cost - effectiveness of its products. The company also has a strong R & D department that focuses on developing new stainless steel products and improving production processes.


In the market, Acerinox has a wide range of customers in different industries, such as construction, household appliances, and transportation. Its 17 - 4 Stainless Steel Plate is well - known for its high quality and performance.


Features in 17 - 4 Stainless Steel Plate

  • Vertical Integration Advantage: The vertically integrated production model enables Acerinox to have better control over the quality of the 17 - 4 Stainless Steel Plate. It can ensure the consistency of the raw materials and the production process.
  • Diverse Product Range: The company offers a diverse range of 17 - 4 Stainless Steel Plate products, including different thicknesses, widths, and surface finishes. This allows customers to choose the most suitable product for their applications.
  • High - Performance Products: Acerinox's 17 - 4 Stainless Steel Plate has high strength, good corrosion resistance, and excellent fatigue resistance, which makes it suitable for demanding applications.


Company Advantages

  • Cost - Efficiency: The vertically integrated production model helps Acerinox to reduce production costs, which gives it a price advantage in the market.
  • Global Market Reach: The company's global production facilities and sales network allow it to reach customers in different parts of the world, which enhances its market competitiveness.
  • R & D - Driven Innovation: Acerinox's strong R & D department continuously drives product innovation. It can introduce new features and improvements to the 17 - 4 Stainless Steel Plate to meet the evolving market requirements.


5. Nippon Steel Corporation

Company Introduction

Nippon Steel Corporation is a Japanese steel company with a long history and a high - tech production base. It was formed through the merger of Nippon Steel & Sumitomo Metal Corporation in 2019. The company is one of the largest steel producers in the world and has a wide range of steel products.


Nippon Steel Corporation has advanced steelmaking technologies and a strict quality control system. It invests a large amount of resources in research and development to improve the performance of its steel products. The company has a strong presence in the global market, supplying steel products to various industries, including automotive, construction, and energy.


The 17 - 4 Stainless Steel Plate produced by Nippon Steel Corporation is known for its high quality and reliability. The company has a deep understanding of the technical requirements of 17 - 4 Stainless Steel Plate and can produce products that meet the most demanding standards.


Features in 17 - 4 Stainless Steel Plate

  • Advanced Steelmaking Technology: Nippon Steel Corporation uses advanced steelmaking technologies, such as vacuum melting and continuous casting, in the production of 17 - 4 Stainless Steel Plate. These technologies can ensure the high purity and uniform structure of the steel.
  • High - Quality Assurance: The company's strict quality control system covers every aspect of the production process, from raw material inspection to the final product testing. This ensures that the 17 - 4 Stainless Steel Plate meets the highest quality standards.
  • Technical Support: Nippon Steel Corporation provides strong technical support to its customers. It can offer advice on product selection, processing, and application, which helps customers make the best use of the 17 - 4 Stainless Steel Plate.


Company Advantages

  • Long - Standing Reputation: Nippon Steel Corporation has a long - standing reputation for high - quality steel products. Customers around the world trust the company's products and services.
  • Strong R & D Capability: The company's large - scale R & D investment enables it to develop new technologies and products. It can continuously improve the performance of the 17 - 4 Stainless Steel Plate.
  • Global Supply Chain: Nippon Steel Corporation has a well - established global supply chain, which ensures the timely delivery of its products to customers in different regions.


6. POSCO

Company Introduction

POSCO is a South Korean steel company that is one of the leading steel producers in the world. It was founded in 1968 and has grown rapidly over the years. The company has a modern production complex with advanced steelmaking and processing facilities.


POSCO is committed to innovation and sustainable development. It invests heavily in research and development to develop new steel products and improve production efficiency. The company has a wide range of customers in different industries, including automotive, shipbuilding, and construction.


The 17 - 4 Stainless Steel Plate produced by POSCO is known for its high quality and excellent performance. The company has a strict quality control system and uses advanced production technologies to ensure the consistency and reliability of its products.


Features in 17 - 4 Stainless Steel Plate

  • Advanced Production Processes: POSCO uses advanced production processes, such as hot rolling and cold rolling, in the production of 17 - 4 Stainless Steel Plate. These processes can ensure the high precision and good surface quality of the plate.
  • Customized Solutions: The company can provide customized solutions for 17 - 4 Stainless Steel Plate according to the specific needs of customers. It can adjust the chemical composition, mechanical properties, and surface finish of the plate to meet different application requirements.
  • Good Weldability: The 17 - 4 Stainless Steel Plate produced by POSCO has good weldability, which is an important advantage in many applications. It can be easily welded without significant loss of mechanical properties.


Company Advantages

  • Innovation - Driven: POSCO's focus on innovation allows it to stay ahead of the competition. It can continuously introduce new products and technologies to the market.
  • Sustainable Development: The company is committed to sustainable development. It uses environmentally friendly production methods and promotes the recycling of steel products.
  • Global Market Presence: POSCO has a strong global market presence. It exports its products to many countries around the world, which gives it a wide customer base and market share.


7. ArcelorMittal

Company Introduction

ArcelorMittal is the world's largest steel and mining company. It was formed in 2006 through the merger of Arcelor and Mittal Steel. The company has a global production network with facilities in Europe, Asia, the Americas, and Africa.


ArcelorMittal has a wide range of steel products, including 17 - 4 Stainless Steel Plate. The company invests a large amount of resources in research and development to improve the quality and performance of its steel products. It also has a strong focus on sustainability, aiming to reduce its environmental impact and promote the circular economy.


The company's global sales and service network allows it to serve customers in different industries, such as automotive, construction, and energy. ArcelorMittal's 17 - 4 Stainless Steel Plate is well - known for its high quality and reliability.


Features in 17 - 4 Stainless Steel Plate

  • Global Production and Supply: ArcelorMittal's global production network ensures the stable supply of 17 - 4 Stainless Steel Plate. It can produce and deliver products to customers in different regions in a timely manner.
  • Advanced R & D: The company's large - scale R & D investment enables it to develop new technologies and products. It can improve the performance of the 17 - 4 Stainless Steel Plate, such as increasing its strength and corrosion resistance.
  • Sustainable Production: ArcelorMittal is committed to sustainable production. It uses recycled materials and energy - efficient production methods in the production of 17 - 4 Stainless Steel Plate.


Company Advantages

  • Economies of Scale: The company's large - scale production allows it to achieve economies of scale, which reduces production costs and gives it a price advantage in the market.
  • Global Brand Recognition: ArcelorMittal is a well - known global brand. Its products are widely recognized for their high quality and reliability, which enhances its market competitiveness.
  • Comprehensive Service: The company provides comprehensive services, including technical support, product customization, and after - sales service. This helps customers solve various problems during the use of 17 - 4 Stainless Steel Plate.


8. AK Steel Holding Corporation

Company Introduction

AK Steel Holding Corporation is an American steel company. It was founded in 1989 and has a long - standing reputation in the steel industry. The company focuses on the production of high - quality steel products, including 17 - 4 Stainless Steel Plate.


AK Steel has a modern production facility with advanced steelmaking and processing equipment. The company invests in research and development to improve the quality and performance of its products. It has a wide range of customers in different industries, such as automotive, aerospace, and energy.


The 17 - 4 Stainless Steel Plate produced by AK Steel is known for its high strength and good corrosion resistance. The company has a strict quality control system to ensure the consistency and reliability of its products.


Features in 17 - 4 Stainless Steel Plate

  • High - Strength Performance: AK Steel's 17 - 4 Stainless Steel Plate has high strength, which makes it suitable for applications that require high - load - bearing capacity.
  • Good Corrosion Resistance: The plate has good corrosion resistance, which allows it to be used in harsh environments, such as marine and chemical industries.
  • Precision Manufacturing: The company uses advanced manufacturing processes to ensure the precision of the 17 - 4 Stainless Steel Plate. It can produce plates with accurate thickness and flatness.


Company Advantages

  • Domestic Market Advantage: As an American company, AK Steel has an advantage in the domestic market. It can quickly respond to the needs of local customers and provide timely service.
  • Technical Expertise: The company has a team of technical experts who have in - depth knowledge of stainless steel production. They can provide technical support and solutions to customers.
  • Quality Assurance: AK Steel's strict quality control system ensures the high quality of its 17 - 4 Stainless Steel Plate. Customers can trust the reliability of the products.


9. Sandvik AB

Company Introduction

Sandvik AB is a Swedish multinational engineering company. It was founded in 1862 and has a long history of innovation and high - quality manufacturing. The company operates in various sectors, including mining, construction, and materials technology.


In the materials technology field, Sandvik is known for its high - performance stainless steel products, including 17 - 4 Stainless Steel Plate. The company has a state - of - the - art production facility with advanced manufacturing processes. It invests heavily in research and development to develop new materials and improve existing products.


Sandvik has a global sales and service network, which allows it to serve customers in different industries around the world. The 17 - 4 Stainless Steel Plate produced by Sandvik is well - known for its excellent performance and reliability.


Features in 17 - 4 Stainless Steel Plate

  • High - Performance Materials: Sandvik uses advanced materials and manufacturing processes to produce 17 - 4 Stainless Steel Plate with high performance. The plate has excellent mechanical properties, such as high strength and good toughness.
  • Customized Design: The company can provide customized design solutions for 17 - 4 Stainless Steel Plate according to the specific needs of customers. It can develop products with special properties and shapes.
  • Advanced Surface Treatment: Sandvik's 17 - 4 Stainless Steel Plate can be treated with advanced surface treatment technologies, which can improve its corrosion resistance and wear resistance.


Company Advantages

  • Innovation Leadership: Sandvik is at the forefront of innovation in the materials technology field. It can continuously introduce new products and technologies to the market.
  • Global Service Network: The company's global service network ensures that customers can get timely support and service, no matter where they are located.
  • Quality Reputation: Sandvik has a long - standing reputation for high - quality products. Customers around the world trust the company's 17 - 4 Stainless Steel Plate.


10. Tata Steel Limited

Company Introduction

Tata Steel Limited is an Indian multinational steel company. It was founded in 1907 and is one of the oldest and largest steel producers in India. The company has a large - scale production facility with advanced steelmaking and processing equipment.


Tata Steel is committed to sustainable development and social responsibility. It invests in research and development to improve the quality and performance of its steel products. The company has a wide range of customers in different industries, including automotive, construction, and engineering.


The 17 - 4 Stainless Steel Plate produced by Tata Steel is known for its high quality and cost - effectiveness. The company has a strict quality control system to ensure the consistency and reliability of its products.


Features in 17 - 4 Stainless Steel Plate

  • Cost - Effective Production: Tata Steel can produce 17 - 4 Stainless Steel Plate at a relatively low cost due to its large - scale production and efficient management. This gives it a price advantage in the market.
  • Good Mechanical Properties: The 17 - 4 Stainless Steel Plate has good mechanical properties, such as high strength and good ductility. It can be used in various applications.
  • Local Market Advantage: As an Indian company, Tata Steel has an advantage in the local market. It can understand the needs of local customers better and provide more suitable products and services.


Company Advantages

  • Large - Scale Production: The company's large - scale production capacity allows it to meet the large - scale demand for 17 - 4 Stainless Steel Plate.
  • Sustainable Development: Tata Steel is committed to sustainable development. It uses environmentally friendly production methods and promotes the recycling of steel products.
  • Social Responsibility: The company takes social responsibility seriously. It invests in community development and environmental protection, which enhances its brand image.


Conclusion

The top 10 17 - 4 Stainless Steel Plate factories in the world in 2026 represent the highest level of production and technology in the industry. Each factory has its own unique features and advantages, whether it is the advanced production technology of ThyssenKrupp, the sustainable production of Outokumpu, or the cost - effectiveness of Tata Steel. These factories play an important role in meeting the global demand for 17 - 4 Stainless Steel Plate in various industries, such as aerospace, automotive, and construction. As the market demand continues to grow and the technology continues to develop, these factories will continue to innovate and improve their products and services to maintain their competitiveness in the global market. At the same time, customers can choose the most suitable factory according to their specific needs, such as product quality, price, and service.