EN 10305 seamless precision steel tube

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EN 10305 seamless precision steel tube

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.

EN 10305 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 drawing operation the tubes are normalized in a controlled atmosphere.

Chemical composition and mechanical properties of EN 10305 seamless precision steel tube

 Steel grade

 Steel

 C

 Si

 Mn

 P

 S

 Yield strength

 Tensile strength

 Elongation

 Name

 Number

 Max

 Max

 Max

 Max

 Max

 min(Mpa)

 min(Mpa)

 min(%)

 E215

 1.0212

 0.10

 0.05

 0.70

 0.025

 0.015

 215

 290-430

 30

 E235

 1.0308

 0.17

 0.35

 1.20

 0.025

 0.015

 235

 340-480

 25

 E355

 1.0580

 0.22

 0.55

 1.60

 0.025

 0.015

 355

 490-630

 22