Huarida Group Achieves Mass Production of Medium-High Carbon Cold-Rolled Heat-Treated Products— Technological Breakthrough Sets New Benchmark for High-End Manufacturing
Introduction
In May 2025, Huarida Group celebrated a groundbreaking achievement in the field of medium-high carbon cold-rolled heat treatment! After 10 months of process optimization and technological innovation, the heat treatment plant has successfully achieved stable mass production of core products such as 65MN and 75CR1, marking a new phase in the deep processing of medium-high carbon cold-rolled materials. This milestone not only highlights the technical team’s expertise but also delivers higher strength and superior performance in cold-rolled product solutions for customers.
Event Overview
Since the commissioning of the medium-high carbon cold-rolling factory in March 2024, Huarida Group has remained focused on customer needs, driving technological upgrades across the entire service chain, including slitting, leveling, and heat treatment. OnMay 15, 2025, the heat treatment production line for 65MN material (specification: 1.0mm×1250mm) officially entered mass production. The following day, heat-treated 75CR1 material (specification: 2.3mm×1250mm) passed rigorous inspection, achieving a stable hardness of HRC 48-51, with surface flatness and quality far exceeding industry standards.
This breakthrough in mass production is the culmination of over 300 days of iterative testing by the Group’s technical team. From optimizing heat treatment temperature controls and cooling rates to refining plate-straightening processes, the team overcame multiple technical barriers, ultimately transitioning from laboratory-scale trials to large-scale manufacturing.
Technological Breakthroughs and Production Progress
Process Innovation, Enhanced Strength
The heat treatment process for medium-high carbon cold-rolled materials is critical to product performance. For instance, 75CR1, with its high carbon content and complex alloy composition, demands exceptional uniformity in heat treatment. By integrating intelligent temperature control systems and customized cooling processes, the team reduced hardness deviation to within ±1 HRC while ensuring flawless flatness and zero warping. This meets the stringent requirements of automotive components, precision machinery, and other high-strength material applications.
Mass Production Milestones
May 15: 65MN heat-treated coil plates entered mass production, achieving a first-day output of over 500 tons with a yield rate of 98.5%.
May 16: 75CR1 heat-treated coil plates commenced production. Initial customer feedback praised a 20% increase in tensile strength and significantly extended fatigue life.
Collaborative Effort, Overcoming Challenges
The head of the heat treatment plant stated, “The success of mass production stems from cross-departmental collaboration. The equipment team enhanced roller transmission accuracy, while the quality department introduced AI visual inspection systems. Every improvement contributed to product stability.” Additionally, technical cooperation with Jiuquan Iron & Steel Group (JISCO) provided vital support for process development.
Industry Impact and Future Plans
Filling Market Gaps, Boosting Competitiveness
The domestic market for medium-high carbon cold-rolled heat-treated products has long relied on imports. Huarida’s mass production capability will reduce costs and improve efficiency for high-end manufacturing. For example, 75CR1 costs 15% less and shortens delivery cycles by 30% compared to imported counterparts, delivering substantial value to customers.
Technology Expansion and Capacity Growth
The Group plans to addtwo smart heat treatment lines in Q3 2025, aiming to increase annual production capacity to200,000 tons. Concurrently, the R&D team is exploring heat treatment processes for higher-carbon materials like 80CrV2, targeting advanced applications in aerospace, new energy equipment, and other cutting-edge industries.
Closing Remarks
Huarida Group upholds the philosophy of “Driving Manufacturing Advancement Through Technology.” The successful mass production of heat-treated products reaffirms our commitment to innovation in high-end materials. Moving forward, we will continue to refine our processes, deliver superior products and services, and propel “Made in China” toward the pinnacle of the global value chain!
