Jingye Steel Advances High-End Steel Manufacturing Through Innovation, Smart Technology and Engineering Excellence

From high-grade pipeline steel supplied for national energy infrastructure projects to ultra-heavy-wall welded pipes used in major transportation hubs, Jingye Steel continues to strengthen its manufacturing capabilities through technological innovation, product development and smart manufacturing.

From high-grade pipeline steel supplied for national energy infrastructure projects to ultra-heavy-wall welded pipes used in major transportation hubs, Jingye Steel continues to strengthen its manufacturing capabilities through technological innovation, product development and smart manufacturing.

Recent achievements include the successful trial production of 1,800 MPa-grade automotive hot-stamping steel, breakthroughs in 6 mm ultra-thin shipbuilding plates, and the wider application of AI-powered technologies across steel production lines.

Driven by its philosophy that “Producing excellent products is the best way to serve customers,” Jingye Steel is accelerating its transformation toward high-end, intelligent, globalized and green development. By integrating advanced steelmaking technologies with digital solutions, the company aims to deliver high-quality steel products and reliable services for global customers and major infrastructure projects.

1. Advanced Steel Product Development: Expanding High-End Manufacturing Capabilities

Continuous product innovation is essential to meeting the increasingly demanding requirements of the global steel market. Jingye Steel focuses on developing high-performance steel products and optimizing manufacturing processes to support industries such as shipbuilding, automotive manufacturing, energy and infrastructure.

Breakthrough in 6 mm Ultra-Thin Shipbuilding Steel Plates

The production of 6 mm ultra-thin shipbuilding steel plates is particularly challenging in the medium and heavy plate industry. Due to their limited thickness, these plates are susceptible to rapid temperature loss, shape-control difficulties and unstable internal microstructures during rolling.

At the same time, shipbuilding applications require excellent low-temperature toughness, tear resistance and weldability, particularly for vessels operating in demanding marine environments.

To overcome these challenges, Jingye Steel established a dedicated technical team to optimize the entire production process, including steelmaking, reheating, rolling and leveling.

Key improvements included:

• Strict control of molten steel purity and chemical composition.
• Optimization of rolling parameters for ultra-thin plate production.
• Development of an advanced ultra-fast cooling and precision leveling process.
• Improvements in welding adaptability for high-heat-input welding applications.

Through these technological breakthroughs, Jingye Steel successfully achieved stable mass production of 6 mm ultra-thin shipbuilding plates, with a 100% ultrasonic testing qualification rate. The products have achieved a high level of quality and performance within China's premium steel plate industry.

Successful Trial Production of 1,800 MPa Automotive Hot-Stamping Steel

Jingye Steel has also made progress in the development of advanced automotive steel materials.

The company successfully completed the first trial production of 1,800 MPa-grade automotive hot-stamping steel, designed to meet the demanding requirements of lightweight vehicle manufacturing and automotive safety components.

To ensure product consistency, the technical team developed a dedicated manufacturing plan and precisely controlled key processes, including steelmaking, rolling, batch annealing and temper rolling.

The trial-produced material achieved:

• Tensile strength: 570 MPa
• Yield strength: 425 MPa
• Elongation after fracture: More than 19%

These properties meet the requirements for subsequent hot stamping and quenching, through which the final automotive components are expected to achieve a tensile strength of 1,800 MPa.

From ultra-thin shipbuilding plates to advanced automotive steel, Jingye Steel continues to strengthen its R&D capabilities and expand its portfolio of high-performance steel materials.

2. Reliable Steel Supply for Major Infrastructure Projects

Large-scale infrastructure projects require more than high-quality materials. They also demand strict technical compliance, stable production capacity and reliable delivery schedules.

Jingye Steel leverages its manufacturing capabilities, technical expertise and coordinated production management to support major energy and transportation infrastructure projects.

High-Grade Pipeline Steel for China's National Energy Infrastructure

Jingye Yingkou Medium Plate supplied L555M high-grade pipeline steel for the national pipeline network's Suiyang–Anhui–Henan trunk line project.

The 822.5-kilometer pipeline crosses Jiangsu, Anhui and Henan provinces in China. As a high-pressure long-distance natural gas transmission project, it requires pipeline steel with excellent strength, toughness, weldability and steel cleanliness.

To meet these demanding requirements, the production team adopted advanced refining and vacuum treatment processes to improve molten steel purity. Rolling and cooling parameters were also strictly controlled throughout production.

Testing confirmed that the finished pipeline steel exceeded relevant national standard requirements in key performance indicators, including:

• Low-temperature impact toughness at -20°C.
• Mechanical strength.
• Plate shape and dimensional quality.
• Overall product consistency.

To ensure timely delivery, Jingye Yingkou Medium Plate established a dedicated project supply team involving production, technical, quality inspection and logistics departments.

Through priority production scheduling, 24-hour progress monitoring and advance transportation planning, the first batch of products was delivered on schedule and successfully passed joint inspection by the customer and general contractor.

This achievement demonstrates Jingye Steel's ability to coordinate steel production, quality assurance and logistics for demanding infrastructure projects.

Ultra-Heavy-Wall Welded Pipes for Nanjing North Railway Station

Jingye Steel has also supplied customized ultra-heavy-wall longitudinal submerged arc welded (LSAW) pipes for the core steel structure of Nanjing North Railway Station, a major transportation hub in China.

The project required large-diameter, heavy-wall welded pipes with demanding structural and dimensional specifications.

Supported by a 15,000-ton forming press and a digital welding system, Jingye Steel's production line has significantly expanded its manufacturing capabilities.

Key production capabilities include:

• Maximum outside diameter: 1,626 mm.
• Maximum wall thickness: 120 mm.
• Maximum single pipe length: 13 meters.

The production line can manufacture pipes up to 13 meters long, compared with the previous length of less than 6 meters per pipe.

Thanks to optimized welding technology, the number of circumferential welds can also be reduced by approximately 30%–50%, helping construction contractors significantly reduce on-site welding work.

This customized manufacturing capability allows Jingye Steel to respond to complex engineering requirements with large-diameter, thick-wall welded pipes and dependable product quality.

3. Smart Manufacturing: Integrating AI and Digital Technologies into Steel Production

As the steel industry moves toward Industry 4.0, digital transformation and artificial intelligence are becoming increasingly important for improving production efficiency, product quality and operational management.

Jingye Steel is actively integrating AI, machine vision, intelligent control systems and Manufacturing Execution Systems (MES) into its production operations.

AI-Powered Applications for Greater Production Efficiency

AI technologies are being applied to key steelmaking and quality inspection processes, delivering measurable improvements in operational performance.

Examples include:

• Blast Furnace Thermal Efficiency Prediction: AI models predict blast furnace thermal efficiency with a deviation of no more than ±3%.
• Steel Plate Surface Defect Inspection: Intelligent inspection systems achieve an accuracy rate of over 99%.
• Intelligent Hot-Blast Stove Control: AI-based combustion control improves combustion efficiency by 8% while reducing energy consumption by 5%.
• Automated Pulverized Coal Preparation: One-click automated operation increases pulverizing mill output by 7.69% per hour.
• Industrial Robotics and Machine Vision: AI-powered inspection, monitoring and labeling robots reduce manual labor input in relevant positions by 20%.

These applications help improve process control, reduce operational costs and strengthen product quality management throughout steel production.

MES Systems for Integrated Production Management

Jingye Steel is also advancing the digital integration of production and management processes through Manufacturing Execution Systems (MES).

At Jingye Huaxi Special Steel, a three-level digital architecture connecting management, execution and control has been established, with the steelmaking MES system serving as a core platform.

The system integrates eight major intelligent application scenarios and supports closed-loop management from order placement to finished product delivery.

Key application areas include:

• Production process control.
• Quality inspection and traceability.
• Raw material and material distribution.
• Production scheduling and coordination.
• Manufacturing execution and order management.

At Jingye Yingkou Medium Plate, MES applications cover core processes such as steelmaking, rolling and finishing. Production data is collected in real time, operating conditions are monitored online, and product quality information can be traced throughout the manufacturing process.

Group-Wide Digital Transformation

Beyond individual production lines, Jingye Steel is building an integrated digital manufacturing and management ecosystem across its operations.

The company has established a big data platform and data warehouse to consolidate, manage and analyze data from multiple business systems.

Through its integrated “1+8+N” production management platform, Jingye Steel is progressively implementing:

• 102 digital and intelligent systems.
• 56 AI-powered application scenarios.
• Integrated digital management across production lines, manufacturing processes and business operations.

These initiatives are helping Jingye Steel build a more connected, efficient and data-driven manufacturing system.

Recognition for Smart Manufacturing Excellence

Jingye Steel's digital transformation efforts have received recognition through several industry certifications and achievements in 2026.

• Jingye Steel achieved Level 4 certification under China's Intelligent Manufacturing Capability Maturity Model.
• Jingye Huaxi Special Steel was selected as a 2026 Advanced Smart Factory Case in Hebei Province.
• Jingye Yingkou Medium Plate obtained AAA-level certifications for both its Two-in-One Integration Management System and Digital Transformation Management System.

These achievements reflect Jingye Steel's continued investment in intelligent manufacturing and digital industrial development.

4. Jingye Steel: Building a Stronger Future for Global Steel Customers

From high-performance shipbuilding steel and advanced automotive materials to high-grade pipeline steel and customized heavy-wall welded pipes, Jingye Steel continues to strengthen its capabilities across product development, manufacturing and project supply.

 

By combining advanced steel production technologies, engineering experience and intelligent manufacturing solutions, Jingye Steel is committed to delivering reliable steel products that meet the evolving needs of global industries.

Looking ahead, Jingye Steel will continue to focus on four strategic priorities: high-end development, intelligent manufacturing, global expansion and green transformation.

With continuous investment in technology, product innovation and manufacturing excellence, Jingye Steel aims to become a stronger global steel manufacturing partner, supporting infrastructure development, industrial upgrading and the future of the global steel industry.

Jingye Steel – Your Global Steel Manufacturing Partner.

Visit our official website: https://www.jingyesteel.com.cn/

Contact our team: export@jingyesteel.com.cn