DIN 2391 Precision Steel Pipe – High-Tolerance Seamless Tubing for Advanced Engineering Applications Engineered for precision and performance, DIN 2391
Precision Steel Pipe is a premium-grade seamless tubing solution designed to meet the exacting demands of modern industrial systems. Manufactured from high-quality carbon steel or alloy steel, this pipe adheres strictly to international chemical composition standards, ensuring consistent mechanical properties, corrosion resistance, and long-term reliability under operational stress. Its production involves advanced cold rolling or cold drawing techniques, resulting in exceptional dimensional accuracy—minimal tolerances on both outer and inner diameters—and uniform wall thickness that supports complex machining, assembly, and integration processes. Key Features: - Ultra-fine dimensional control (±0.05mm tolerance) for tight-fit applications - Smooth internal and external surfaces free from defects like seams, scratches, or pits - Excellent straightness and flatness for easy handling and installation - Superior mechanical strength with balanced ductility and hardness - Enhanced fluid dynamics due to low surface roughness, reducing frictional losses This precision tubing excels in environments where consistency, durability, and efficiency are critical. The smooth bore minimizes flow resistance, making it ideal for hydraulic and pneumatic systems requiring stable pressure transmission. Additionally, its uniform structure ensures reliable performance across temperature variations and mechanical loads—whether used in automotive suspension components, aerospace actuation systems, or precision instrumentation in medical devices. With superior tensile strength and impact resistance, DIN 2391 pipes offer robust support even under dynamic conditions. Common Applications: - Hydraulic and pneumatic cylinder rods in manufacturing automation - Automotive steering linkages and fuel delivery systems - Aerospace landing gear actuators and avionics housing - Industrial robotics joints and CNC machine tool components - Oil & gas downhole tools requiring leak-proof integrity - Laboratory equipment and analytical instruments demanding clean, accurate fluid pathways User Feedback Highlights: "Used these tubes in our robotic arm project—no alignment issues during assembly, and the system runs smoother than expected." "Perfect fit for our hydraulic press upgrade. The wall consistency eliminated the need for secondary machining." "Consistent quality batch after batch—this supplier understands what 'precision' truly means." Frequently Asked Questions: What makes DIN 2391 different from standard seamless steel tubes? Unlike general-purpose tubing, DIN 2391 follows strict tolerances for diameter, roundness, and wall thickness, enabling direct use in high-accuracy applications without additional finishing. Is this pipe suitable for high-pressure environments? Yes—it’s manufactured to withstand pressures up to 40 MPa depending on grade and wall thickness, making it suitable for hydraulic and pneumatic systems. Can it be customized for specific dimensions? Absolutely. While standard sizes are available, custom lengths, diameters, and finishes can be produced based on engineering specifications. Why choose alloy steel over carbon steel versions? Alloy variants provide enhanced heat resistance, fatigue strength, and wear resistance—ideal for extreme operating conditions such as aerospace or heavy machinery. Baodely Huaian Metal Technology Co., Ltd. offers a comprehensive range of precision seamless steel pipes, including carbon steel, low-temperature resistant, boiler-grade, and alloy steel options—all compliant with DIN 2391 standards. Our commitment to quality, competitive pricing, and global shipping makes us a trusted partner for industries seeking dependable materials for cutting-edge engineering solutions.
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