Refractive Index, Density Stability, Chemical Resistance, High Performance, Versatile Ningbo Merak Advanced Materials Technology Co., Ltd. , https://www.merak-tech.com
From July 4th to 5th, under the guidance of the company's technical department, Shuigang Steelmaking Plant successfully developed two key steel grades: ER70S-6 and 65Mn. The production of ER70S-6 reached a total of 3 heats, amounting to 83.49 tons, while 5 heats of 65Mn were produced, with 4 heats totaling 116 tons meeting the required quality standards. After thorough testing, all trial production specifications were successfully met.
ER70S-6 is an alloy wire steel commonly used in gas-shielded welding. This welding process involves using an external gas to protect the arc and weld zone, ensuring high-quality and efficient results. Gas-shielded welding is widely adopted in China’s heavy machinery, construction equipment, shipbuilding, boiler manufacturing, and automotive industries. As the demand for this type of welding continues to grow, so does the need for high-quality welding wire rods. ER70S-6, a popular choice abroad, adheres to the American Welding Society standard AWS A5.18, offering excellent arc stability and superior weld bead performance, making it a preferred material in many international markets.
65Mn, a high-carbon low-alloy steel, is primarily used for manufacturing spring wires, shock absorber springs for vehicles, mechanical springs, and wire ropes. Known for its high strength and durability, 65Mn is considered a high-value-added product with strong market demand. Traditionally, it has been produced using electric furnace technology, but the recent development by Shuigang marks a significant step forward in expanding the company's product portfolio.
The steelmaking plant meticulously planned and prepared for the production of both steel grades. Each grade was cast using a dedicated tundish to ensure consistent quality and product integrity throughout the development process. This successful achievement not only enhances the range of high-value products offered by Shuigang but also opens up new market opportunities, strengthening the company’s competitive position and improving overall profitability.