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 the petrochemical field, critical equipment places high demands on the corrosion resistance, high-temperature strength, and sealing performance of metal components. A petrochemical plant located in Qingdao, Shandong, has its core reactor and pipeline connection system operating for long periods in environments of high temperature, high pressure, and sulfur-containing media, placing great importance on the reliability of stainless steel forgings. Jianing Forging provided customized stainless steel forging products for this project, successfully meeting the petrochemical plant's demand for continuous equipment operation.
The original forgings at this petrochemical plant encountered the following problems during use: medium corrosion caused surface pitting and stress corrosion cracking, affecting sealing performance; When operating temperature fluctuates, the expansion coefficients of components do not match, causing loose connections; Some forgings have minor internal defects, posing fatigue failure risks under long-term alternating loads. In addition, due to the short on-site maintenance window period, strict requirements have been placed on the delivery cycle of forgings and the suitability of on-site installation. The customer urgently needed a forging product that could withstand corrosive environments, possess excellent mechanical properties, and deliver reliably.
To address these pain points, Jianing Forging offers a solution: selecting high-quality 316L/316H stainless steel raw materials, strictly controlling chemical composition and microstructure to enhance resistance to pitting and stress corrosion; By adopting multi-directional forging processes and optimized heat treatment regimes, internal defects are eliminated and grains are uniformly refined, thereby enhancing the material's high-temperature strength and fatigue life; Introducing CNC machining and coordinate measuring machines for dimensional accuracy helps control the tolerance between end face sealing grooves and mounting holes within ±0.05mm; At the same time, based on modular scheduling and mature supply chain management, the delivery cycle was shortened to 60% of the standard cycle, and a technical team was dispatched to guide installation on-site, reducing on-site commissioning time for customers. After implementing this plan, the forgings have operated continuously for two years without leakage or failure, effectively supporting long-term stable operation of the unit.
