Jianing Forging provided ring forgings to a petrochemical machinery factory in Lanzhou, Gansu, playing an important role in key petrochemical equipment components. This client mainly engages in the manufacturing and maintenance of refining and chemical equipment, and has strict reliability requirements for ring forgings.

Case Summary

The annular forgings used in this collaboration are used at the flange connection points of petrochemical reactors and heat exchangers, which must endure long-term exposure to high temperature, high pressure, and corrosive media. Based on the customer's drawings and technical specifications, Jianing Forging uses high-quality alloy steel materials and, through fine forging and temperature-controlled heat treatment processes, has completed the delivery of multiple batches of ring forgings.

Customer pain points

Before the partnership, the client faced the following challenges:

• Some forgings exhibit insufficient structural stability under high-temperature conditions, making them prone to deformation or cracking;
• Purchased forgings have large dimensional accuracy fluctuations and require secondary processing during installation, affecting project timelines;
• Some suppliers cannot consistently meet the long-term operational requirements of the petrochemical industry in terms of corrosion resistance.

Product advantages

To address these pain points, Jianing Forging offers customized solutions:

• Strictly selected alloy structural steels (such as 30CrMo or 42CrMo) are selected, combined with normalizing + tempering processes, which help ensure uniform and stable microstructure of forgings at high temperatures;
• Using CNC grinding rings and fine molds, the inner and outer diameter tolerances of ring forgings are controlled within ±0.5mm, reducing machining allowances;
• Each batch of products undergoes ultrasonic flaw detection, mechanical property testing, and grain size testing, providing traceable quality reports to meet the petrochemical industry's high safety requirements.