In high-pressure hydraulic systems, every component must deliver uncompromising reliability. At the heart of these systems lies a critical element: the DIN 2391/C hydraulic steel tube with high pressure DIN 2391/C seamless precision steel tubes are engineered to meet the rigorous demands of industrial hydraulics, offering superior strength, durability, and precision. As a trusted manufacturer of DIN 2391/C hydraulic steel tubes, YUTONG INDUSTRY combines advanced production expertise with stringent quality controls to provide solutions that empower your operations.
Our DIN 2391/C hydraulic tubes are crafted through a meticulously controlled production process to ensure consistency and performance:
1. Material Selection：High-grade cold-rolled steel billets are sourced to guarantee chemical composition (e.g., St52, St37) compliance with DIN 2391/C standards.
2. Cold Drawing & Precision Sizing: Tubes undergo a multi-stage cold-drawing process to achieve tight dimensional tolerances (outer diameter ±0.3 mm, wall thickness ±5%). Proprietary die technology ensures smooth internal surfaces (Ra ≤ 0.4 µm), minimizing friction and pressure loss in hydraulic circuits.
3. Stress-Relieving Heat Treatment：A controlled annealing process eliminates residual stresses from cold working, enhancing structural integrity and fatigue resistance.
4. Surface Finishing & Protection：Phosphating or oiling options provide corrosion resistance, extending service life even in harsh environments.
Why DIN 2391/C Hydraulic Steel Tubes? Key Technical Advantages
Superior Pressure Resistance: Designed for hydraulic systems operating up to 300 bar, with burst pressures exceeding 1,000 bar.
Dimensional Accuracy: Seamless construction and strict adherence to DIN 2391/C tolerances ensure easy assembly and compatibility with global hydraulic component standards.
Longevity: Homogeneous microstructure from precision heat treatment resists wear and deformation under cyclic loading.
