On December 25, 2025, our company successfully completed the production and delivery of a batch of DIN933 S32750 super duplex stainless steel bolts.
As a high-performance fastener product, the DIN933 S32750 super duplex stainless steel bolt uses S32750 super duplex stainless steel as the base material, which combines the advantages of both austenitic and ferritic stainless steel.
This superior mechanical performance allows the bolts to withstand high pressure and heavy loads, while the unique duplex structure provides excellent corrosion resistance. For offshore and marine engineering projects exposed to seawater and humid air for extended periods, these performance advantages can effectively extend equipment life and reduce maintenance costs.
During the production of this batch of DIN933 S32750 super duplex stainless steel bolts, the company adopted advanced cold heading and thread rolling technologies. Each bolt underwent rigorous quality inspection, including material composition analysis (PMI testing), mechanical performance testing, and surface defect detection, achieving a first-pass yield rate of 99.9%. Currently, the company has established a complete production line for DIN933 S32750 super duplex stainless steel bolts, with an annual production capacity of 5 million pieces, capable of meeting the needs of large-volume customers.
The Nordic customer who purchased this batch of bolts is engaged in offshore energy development. After multiple comparisons and sample testing, they ultimately chose our company's products because of their superior quality and reliable supply capacity. In the future, the company will continue to focus on the research and development and production of high-end stainless steel fasteners, optimizing product performance and providing more reliable fastener solutions for global industrial projects.
