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EN 10305 is for seamless precision steel tube applications.
EN 10305 European standard specifies the technical delivery conditions for seamless cold drawn steel pipe of circular cross section used in hyhydraulic and pneumatic power systems.
Tubes according to this EN 10305 European standard are characterised by having precisely defined tolerances on dimensions and a specified surface roughness. The allowed pressure rates and temperatures are the responsibility of the customer in accordance with the state of the art and in application of the safety coefficients specified in the application regulations, codes or standards.
Standard and Steel grade:
EN 10305 E215 seamless precision steel tube shall be manufactured from hot finished seamless tubes by cold drawning. Other suitable methods of cold working are permitted. The tubes shall be delivered in the delivery condition +N which means that after the final cold draNote:
The yield point for the annealed (GBK)condition on delivery is at least 50% of the (ultimate) tensile strength. Depending upon the degree of deformation in the drawing operation, the yield point of tubes delivered in the cold-finished/hard (BK) and cold-finished/soft(BKW) conditions, may be increased to a level close to the tensile strength.
In calculating the yield point, the following values are recommended : cold-finished/hard condition on delivery ≥ 80% of the tensile strength, cold-finished/soft condition on delivery ≥ 70% of the tensile strength.
wing operation the tubes are normalized in a controlled atmosphere.
The tubes are supplied in the following quality grades :
A) precision steel tubes intended primarily
for mechanical stressing, without any particular quality requirement and
without acceptance test certificate.
B) precision steel tubes intended primarily for mechanical stressing, with special quirement and exclusively with acceptance test certificate.
C) precision steel tubes with special requirement according to section 12. These requirements and corresponding tests must be agreed, with the customer having to specify his requirements at the time of enquiry and on ordering.
Contact: song Li
Add: The Phenix Industrial Zone Liaocheng City,Shandong Province,China