Shanxi Jianing Forging includes real-life engineering cases of tube sheets, flanges, and various round disc forgings. The finished products of carbon steel and stainless steel disc forgings are clearly photographed, directly reflecting the processing precision of the forgings and the effectiveness of pipeline compatibility.
A petrochemical equipment factory in Dandong, Liaoning, needed a batch of high-demand disc forgings when producing key equipment. These forgings are used at the flange connection points of pressure vessels and have strict standards for dimensional accuracy, material density, and mechanical properties. Previously, the factory purchased from multiple suppliers and often encountered issues such as unstable forging dimensions, loose internal structure, and long delivery cycles, which affected equipment installation progress and operational safety.
This petrochemical equipment factory faces three major challenges in disc forging procurement: First, the large tolerances for the outer diameter and thickness of the forgings require additional processing during assembly, increasing costs; Second, local defects often appear in forgings after ultrasonic testing, resulting in low material pass rates; Third, suppliers lack sufficient production capacity and cannot synchronize with equipment production plans, resulting in multiple delivery delays. These issues severely restrict the factory's production efficiency and the controllability of equipment quality.
To address these pain points, Jianing Forging offers customized disc forging solutions. We use multi-directional die forging technology, combined with a fine annular heating furnace, to effectively control the deformation of the forging, stabilizing the outer diameter tolerance within ±1.5mm and the thickness tolerance at ±0.8mm, allowing direct installation without secondary turning. In terms of materials, high-quality alloy steel is selected and optimized through three stages of forging ratio. After forging, it undergoes normalizing + tempering heat treatment, helping to achieve grain size grade 7 or above, and the ultrasonic inspection pass rate is increased to over 98%. In terms of delivery, we have established a dedicated rapid mold changeover mechanism, shortening the production cycle for single pieces to under 7 days, and supporting urgent order insertion, helping to seamlessly align with customers' production cycles.
Through this solution, a petrochemical equipment factory in Dandong achieved full independent supply of disc forgings, improving installation efficiency by 30%. After one year of operation, no abnormal deformation or cracks were found upon re-inspection, earning high customer recognition. Jianing Forging will continue to deepen its presence in the field of petrochemical equipment forgings, supporting industry development with stable processes and reliable delivery.
