Shanxi Jianing Forging can process 304, 304L, 316, 316L stainless steel forgings, with a complete range of real-world cases of stainless steel flanges, shafts, and ring forgings, offering excellent corrosion resistance and suitable for chemical and seawater corrosion protection conditions.
In marine engineering and heavy industry, the material properties and manufacturing processes of key components directly determine the long-term operational stability of equipment. A seawater desalination heavy plant recently completed the delivery of a batch of high-performance stainless steel forgings, produced by Jianing Forging for the connection and support structure of its core desalination unit. The following explains from the perspectives of project background, customer needs, product solutions, and core features.
This project is located in Tongzhou, Beijing, serving a large seawater desalination heavy factory. The factory requires a batch of large stainless steel forgings to be used at critical load-bearing points under high temperature, high pressure, and high salt spray corrosion conditions. Leveraging its technical expertise in the field of special alloy forging, Jianing Forging undertook the entire manufacturing process for this batch of forgings, from raw material selection and forging process design to final precision machining and inspection, achieving high-quality delivery.
The client encountered the following core issues in the early stages of the project: 1) Long-term exposure of seawater desalination equipment to high concentrations of brine and chloride ions makes ordinary stainless steel forgings prone to pitting and stress corrosion cracking, threatening equipment safety; 2) Large forging sizes and uneven wall thicknesses, making it difficult for conventional forging processes to achieve internal microstructure uniformity and consistent mechanical properties; 3) The project schedule is tight, requiring suppliers to have rapid response and stable batch delivery capabilities; 4) Strict nondestructive testing standards for forgings (such as UT, MT) must meet relevant domestic and international standards.
To address these pain points, Jianing Forging offers a complete solution: first, select duplex stainless steel or super austenitic stainless steel with outstanding chloride ion corrosion resistance, and control impurities and segregation from the source by optimizing alloy ratios and clean smelting processes; Second, multi-directional forging and temperature-controlled forging technology are used to refine grains and eliminate casting defects, helping to ensure uniform microstructure in the thickness direction of the forging; Furthermore, equipped with large presses and fine molds to form large, special-shaped forgings in one go, reducing weld seams and subsequent processing workload; Finally, full-process nondestructive testing and third-party certification were performed, shortening delivery times by about 15% compared to industry norms, strongly supporting the client's project schedule.
