What Are The Implementation Standards for Precision Tube?

Implementation standards are an important basis for the production and quality control of precision steel tubes. By following and implementing relevant standards, the quality of precision tube can be ensured to be stable and reliable, meeting the needs of specific application areas. At the same time, implementation standards are also helpful to promote technical exchanges and cooperation within the industry and promote the healthy development of the precision tube industry.

ASTM/ASME main implementation standards

ASTM A519／ASME SA 519

Scope of application: Seamless steel pipe for hot-rolled or cold-rolled mechanical structures with an outer diameter of ≤ 323.8 mm.

Regulations: Chemical composition, tensile strength, yield strength, elongation, size and allowable deviation, surface quality and test methods.

ASTM A106/ASME SA 106

Scope of application: Carbon seamless pipes for high-temperature service, although mainly used to transport fluids, their pipe tolerances and mechanical properties can also provide references for the selection of precision tubes.

Key indicators: High-temperature tensile properties, yield strength, torsion properties, etc.

ISO main implementation standards

ISO 3304:1985

Scope of application: Specifies the technical delivery conditions for flat-end seamless precision tubes, including chemical composition, mechanical properties and dimensional tolerances.

ISO 4200:1991

Scope of application: Provides a comparison table of dimensions and quality of seamless and welded steel pipes, which is an important basis for design selection and international trade.

GB/T main implementation standards

GB/T 3639

Scope of application: cold-drawn or cold-rolled precision seamless steel pipes.

Regulations: Detailed provisions on the size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificates of steel pipes. Applicable to machinery and structural parts with high requirements on steel pipe precision and surface quality.

GB 8713

Scope of application: Precision inner diameter seamless steel pipes for hydraulic and pneumatic cylinders.

Special attention: Inner diameter accuracy and roundness of steel pipes to ensure their application performance in hydraulic and pneumatic systems.

GBT 43898-2024

Scope of application: Precision seamless steel pipes for hydraulic cylinders of engineering machinery.

The latest standard: Released and implemented in 2024, it specifies in detail the steel pipe brand naming method, ordering content, size, shape, weight and allowable deviation, technical requirements, test methods and inspection rules, etc., especially for cold-drawn or cold-rolled precision seamless steel pipes with an inner diameter of 80mm~500mm.

EN main implementation standards

EN 10305

EN 10305-1: Technical delivery conditions for cold-drawn seamless steel pipes.

EN 10305-2: Technical delivery conditions for cold-drawn welded steel pipes.

EN 10305-4: Technical delivery conditions for cold-drawn seamless steel tubes for hydraulic and pneumatic systems. This series of standards also includes other parts, which provide detailed regulations for precision tubes of different types and uses.

DIN main implementation standards

DIN German standards are standards formulated by the German National Standards Institute (DIN Deutsches Institut für Normung). This standard stipulates the dimensions, tolerances, technical requirements, materials, tests, etc. of precision tubes.

DIN 2391

DIN 2391-1: Dimensional requirements for cold-rolled or cold-drawn precision seamless steel tubes.

DIN 2391-2: Technical delivery conditions for cold-rolled or cold-drawn precision seamless steel tubes. This standard comprehensively regulates cold-rolled or cold-drawn precision seamless steel tubes.

JIS main implementation standards

JIS G3445

Scope of application: Technical delivery conditions for carbon steel pipe, for mechanical structures.

Regulations: Detailed regulations on the chemical composition, mechanical properties, dimensional tolerances, etc. of steel pipes.

Summary

In summary, the implementation standards of precision steel tubes are detailed in many aspects to ensure that their quality and performance meet the needs of specific application areas. During production and use, the relevant standards should be strictly followed to ensure the reliability and safety of precision tubes.

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