Product Features:

Shanghai Hongguan Precision Rolling Pipe is a high-precision seamless steel pipe made from hot-rolled seamless steel pipes and round steel billets as raw materials, which are precision formed through multiple cold rolling/cold drawing processes, and then combined with online heat treatment, finishing, internal and external polishing, degreasing and cleaning, and other full process precision processes. It is the high-end product with the highest dimensional accuracy, the best surface quality, and the best wall thickness uniformity in the seamless steel pipe category. The core solution is to solve the pain points of large dimensional deviation, uneven wall thickness, and rough surface of ordinary seamless steel pipes. It can be directly used in precision machinery, hydraulic and pneumatic, automotive and aviation industries that require extremely high pipe accuracy.

Core forming process: Multi roll cold rolling mill continuous cold rolling forming, controllable single pass diameter reduction and wall reduction, no welding or cutting throughout the process, ensuring continuous and complete metal fiber of the pipe and no loss of mechanical properties;

Supporting precision technology: online bright heat treatment (oxygen free skin), mirror polishing of inner and outer walls, multi pass sizing and straightening, ultrasonic testing, degreasing and cleaning vacuum packaging, full process control of size and surface quality;

Process advantages: Compared with ordinary hot-rolled seamless steel pipes, the material utilization rate is increased by more than 15%, and the subsequent machining allowance is reduced by 80%. It can be directly used for precision assembly, greatly reducing downstream processing costs.

Core advantages:

Application Scenario:

The hydraulic and pneumatic industry: hydraulic cylinders, cylinders, hydraulic system pipelines, and pneumatic component matching pipes are the largest application scenarios for precision rolling pipes, accounting for over 60%;

Automotive industry: automotive shock absorbers, steering systems, braking systems, chassis structural components, engine matching precision pipes, with extremely high requirements for dimensional accuracy and fatigue resistance;

Precision Machinery Industry: Precision shaft sleeves, guide columns, and structural pipes for textile machinery, printing machinery, packaging machinery, and automation equipment can directly replace traditional machined parts;

Aerospace/Military Industry: Precision pipes for aircraft engines, aircraft structural components, hydraulic systems, and weapon equipment must meet the requirements of ultra-high strength, high precision, and high reliability;

Instrumentation/Medical Industry: Precision instrument tubes, medical device matching tubes, and laboratory precision pipelines must meet the requirements of high cleanliness, high precision, and no burrs.