The Deployment of FQM™ Three‑Roll Continuous‑Rolling Technology at Hengyang‑Steel Sets a New Benchmark for Extra‑Large‑Diameter Seamless Pipe Rolling
Danieli Supports Hengyang‑Steel in Successful Hot‑Commissioning of Its Extra‑Large‑Diameter Seamless Steel‑Pipe Hot‑Continuous‑Rolling Line, with the First Φ610 mm Pipe Successfully Rolled‑Off‑Line
Equipped with the FQM™ three‑roll continuous‑rolling technology, the production line boasts an annual output of 800,000‑ton high‑end pipe products. It features high machining precision, low‑energy consumption and intelligent process control, marking a new breakthrough in China’s manufacturing capacity for extra‑large‑diameter steel pipes.
I. Off‑line of the inaugural Φ610 mm Pipe Marks an Industry Milestone
Recently, the hot‑commissioning of Hengyang‑Steel’s hot‑continuous‑rolling production line for extra‑large‑diameter seamless steel pipes has succeeded and the first Φ610 mm steel pipe has come off the assembly line. This signals a critical advancement for domestic extra‑large‑diameter pipe manufacturing.
As industry counterparts, we are sincerely delighted by this achievement. The accomplished production‑line commissioning is far more than an individual success; it serves as an essential indicator that China’s steel‑pipe manufacturing is advancing toward high‑end and large‑scale production.
II. FQM™ Three‑roll Continuous‑rolling Technology Redefines Large‑diameter Rolling Standards
The mill adopts Danieli six‑stand three‑roll continuous‑rolling technology with double‑sided stand‑changing FQM™ system. It possesses prominent strengths over conventional two‑roll rolling and hot‑expansion techniques. Symmetrical three‑roll rolling delivers superior wall‑thickness accuracy and consistent finished‑product quality. The one‑shot forming procedure eliminates repeated reheating procedures, greatly boosting production efficiency and cutting energy consumption. Full‑process intelligent control enables precise rolling operation and complete quality traceability. This suite of technologies has set a brand‑new benchmark for the sector.
III. 800,000‑ton Annual Capacity Fills the High‑end Production Capacity Gap
Designed for an annual capacity of 800,000 tons, the line manufactures premium seamless steel pipes with outer‑diameter specifications from Φ323.8 mm to Φ610 mm and wall‑thickness ranging 7.2‑65 mm. Its products are widely deployed for oil‑and‑gas transportation, subsea pipelines, new‑energy projects, high‑pressure boilers and other sectors.
Its large‑scale manufacturing capacity will effectively reduce domestic reliance on imported high‑performance extra‑large‑diameter steel pipes and furnish robust material guarantees for national energy security and infrastructure construction.
IV. Intelligent Empowerment Ushers in the Era of 'One‑click Fully‑Automatic Pipe Rolling'
The production line integrates an AI‑driven industrial internet platform, on‑line quality inspection, automated stereoscopic warehouse and other systems, achieving full‑chain intelligent management covering raw‑material feeding through finished‑product delivery.
Centralised remote operation plus real‑time data feedback improves production efficiency while ensuring stable product performance and complete traceability. This one‑click fully‑automatic pipe‑rolling mode represents our primary orientation for industrial transformation and upgrading in the future.
Ⅴ. Message for Industry Peers: Break Through Bottlenecks via Innovation and March Toward High‑end Markets
The fruitful cooperation between Hengyang‑Steel and Danieli yields precious experience for pipe manufacturers. Future‑oriented success amid fierce market competition can only be secured through technology‑driven strategies, deep‑going smart‑manufacturing upgrades and high‑end‑market focus.
All seamless‑pipe manufacturers shall take this case for reference, accelerate process optimisation and intelligent renovation, and jointly elevate China’s steel‑pipe industry to the high‑end segment of the global value chain.
This triumphant hot‑commissioning is not merely an honour for Hengyang‑Steel but a boon benefiting the whole industry. Let us forge ahead hand‑in‑hand, forge outstanding quality with exquisite craftsmanship and embrace tomorrow powered‑by innovation.
Jia hui