Overview of the EN 10305 Standard for Precision Steel Tubes
The EN 10305 standard is a fundamental regulation for manufacturers and consumers of metal products, establishing strict technical requirements for precision tubes. EV Group China offers supplies of products that fully comply with these specifications, ensuring high precision in geometric parameters and surface quality.
EN 10305-1: Seamless Cold-Drawn Precision Tubes
This part of the standard covers circular tubes with an outside diameter of up to 380 mm. Key characteristics include tight geometric tolerances and strictly limited surface roughness. These products are in high demand in the automotive, furniture, and mechanical engineering industries, where dimensional stability is critical.
EN 10305-2: Welded Cold-Drawn Tubes
Regulates the technical conditions for welded cold-drawn products. The standard ensures the precision of items required for critical engineering structures that demand high-quality surface finish indicators.
EN 10305-3: Welded Sized Tubes
Applies to welded sized circular tubes with a diameter of up to 193.7 mm. The standard defines parameters for general engineering use, ensuring compliance with specified tolerances and surface cleanliness.
EN 10305-4: Seamless Tubes for Hydraulic and Pneumatic Systems
A specialized standard for seamless cold-drawn tubes operating under pressure in hydraulic and pneumatic circuits. EV Group China supplies tubes that meet strict requirements for leak-tightness and internal layer roughness, which is critical for the durability of power units.
EN 10305-5: Welded Sized Square and Rectangular Tubes
The standard establishes requirements for geometric accuracy and surface quality of welded profile tubes. The products are widely used in the production of furniture, automotive frames, and complex metal structures.
EN 10305-6: Welded Cold-Drawn Tubes for Hydraulics
Regulates the production of welded cold-drawn tubes for high-pressure systems. Compliance with the standard guarantees reliability during operation in dynamic conditions, with strict control over temperature regimes and operating loads.