Abstract Recently, it was learned from the Technical Quality Department of Qiangang Company that, after more than a year of dedicated effort, the company has successfully developed high-carbon steel for saw blades in four grades: 30CrMo, 50Mn2V, 65Mn, and 75Cr. Among these, 65Mn and 75Cr have already achieved batch production and are now being supplied to key industry customers. This marks a significant milestone in Qiangang’s technological development and market expansion strategy.
Saw blade steel is widely used across industries such as mining, metallurgy, and construction, where strict requirements are placed on steel purity, surface quality, dimensional accuracy, and processing performance. Currently, only a limited number of steel mills in China can meet the demands of high-end users. According to the Technical Quality Department, the quality of saw blade steel heavily depends on advanced production equipment and technology, making it challenging to develop and produce. Especially for 75Cr steel, achieving high purity and precise composition control during molten steel processing is critical. The continuous casting and hot rolling processes require extremely high precision, reflecting the overall technological level of the steel mill.
At present, major players like Baosteel, Angang, and Valin dominate the saw blade steel market. With the ongoing sluggishness in the steel sector, companies such as Taigang and Tangshan have also entered this niche market. As a latecomer, Qiangang aims to quickly build its brand and capture market share. To achieve this, the company has integrated its technical staff, sales team, and downstream customers to thoroughly understand the demand for saw blade steel and the supply situation. Through on-site visits and industry analysis, it was found that the demand for saw blade steel in China remains relatively stable, with an annual domestic market demand exceeding 100,000 tons. Moreover, the concentration of downstream users is high, with the top four saw blade manufacturers in China consuming approximately 80,000 tons each year. Two of them are located in Tangshan City, which not only facilitates production organization but also supports efficient product distribution. During customer interactions, the technical team gained a deep understanding of customer needs regarding product quality and delivery timelines. They also provided comprehensive insights into Qiangang’s equipment, process capabilities, R&D strength, and product quality, thereby building customer confidence in collaboration.
With support from Shougang Technology Research Institute and the sales department, the saw blade steel research team swiftly launched industrial trials and mass production of 65Mn. By tracking customer usage, the dimensions, surface finish, and performance of the steel met all customer specifications. During customer visits, it became clear that 75Cr saw blade steel has a growing demand in the future and is considered the most technically challenging type. In April last year, Qiangang initiated the first round of trial production for 75Cr saw blade steel. However, early on, issues such as cracking in the continuous casting billet and “crashing†defects in the first batch of flat panels were encountered, which affected subsequent processing. To address these challenges, the technical team independently innovated, closely monitored every stage of production, adjusted key processes, and gradually resolved issues such as slab longitudinal cracking and heat treatment performance, ultimately meeting customer expectations. Additionally, due to the nature of saw blade manufacturers purchasing raw materials monthly—often with small quantities and scattered specifications—production planning becomes complex and increases short casting times. To meet customer requirements and reduce costs, Qiangang adopted a proactive inventory approach, consolidating orders from multiple customers with similar steel specifications for efficient production.
As of March, Qiangang has produced and sold 4,193 tons of saw blade steel. To expand its product range, the company has completed trial production of 50Mn2V and 30CrMo. The technical team stated that the development goal for saw blade steel is to create a "double high" premium product, continue expanding specifications, and strive to reach the highest standards in plate shape, surface quality, and heat treatment performance. This ongoing effort reflects Qiangang’s commitment to innovation, quality, and long-term market competitiveness.
Saw blade steel is widely used across industries such as mining, metallurgy, and construction, where strict requirements are placed on steel purity, surface quality, dimensional accuracy, and processing performance. Currently, only a limited number of steel mills in China can meet the demands of high-end users. According to the Technical Quality Department, the quality of saw blade steel heavily depends on advanced production equipment and technology, making it challenging to develop and produce. Especially for 75Cr steel, achieving high purity and precise composition control during molten steel processing is critical. The continuous casting and hot rolling processes require extremely high precision, reflecting the overall technological level of the steel mill.
At present, major players like Baosteel, Angang, and Valin dominate the saw blade steel market. With the ongoing sluggishness in the steel sector, companies such as Taigang and Tangshan have also entered this niche market. As a latecomer, Qiangang aims to quickly build its brand and capture market share. To achieve this, the company has integrated its technical staff, sales team, and downstream customers to thoroughly understand the demand for saw blade steel and the supply situation. Through on-site visits and industry analysis, it was found that the demand for saw blade steel in China remains relatively stable, with an annual domestic market demand exceeding 100,000 tons. Moreover, the concentration of downstream users is high, with the top four saw blade manufacturers in China consuming approximately 80,000 tons each year. Two of them are located in Tangshan City, which not only facilitates production organization but also supports efficient product distribution. During customer interactions, the technical team gained a deep understanding of customer needs regarding product quality and delivery timelines. They also provided comprehensive insights into Qiangang’s equipment, process capabilities, R&D strength, and product quality, thereby building customer confidence in collaboration.
With support from Shougang Technology Research Institute and the sales department, the saw blade steel research team swiftly launched industrial trials and mass production of 65Mn. By tracking customer usage, the dimensions, surface finish, and performance of the steel met all customer specifications. During customer visits, it became clear that 75Cr saw blade steel has a growing demand in the future and is considered the most technically challenging type. In April last year, Qiangang initiated the first round of trial production for 75Cr saw blade steel. However, early on, issues such as cracking in the continuous casting billet and “crashing†defects in the first batch of flat panels were encountered, which affected subsequent processing. To address these challenges, the technical team independently innovated, closely monitored every stage of production, adjusted key processes, and gradually resolved issues such as slab longitudinal cracking and heat treatment performance, ultimately meeting customer expectations. Additionally, due to the nature of saw blade manufacturers purchasing raw materials monthly—often with small quantities and scattered specifications—production planning becomes complex and increases short casting times. To meet customer requirements and reduce costs, Qiangang adopted a proactive inventory approach, consolidating orders from multiple customers with similar steel specifications for efficient production.
As of March, Qiangang has produced and sold 4,193 tons of saw blade steel. To expand its product range, the company has completed trial production of 50Mn2V and 30CrMo. The technical team stated that the development goal for saw blade steel is to create a "double high" premium product, continue expanding specifications, and strive to reach the highest standards in plate shape, surface quality, and heat treatment performance. This ongoing effort reflects Qiangang’s commitment to innovation, quality, and long-term market competitiveness.
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