20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> EN 10305 Seamless cold drawn precision steel tubes for mechanical applications and for hydraulic and pneumatic power systems.

20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> Typical fields of application are in the automotive, furniture and general engineering industries.

20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> Steel tubes for precision applications – Technical delivery conditions – Part 1: Seamless cold drawn tubes.

20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> Seamless Precision Steel Tubes according to EN 10305-1

1 arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> Standard and Steel grade:

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EN10305-1 E215

EN10305-1 E235

EN10305-1 E355

1 arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> Feature:

20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> High precision and high brightness, the inner and outer surface of the tubes have high cleanness without oxid mechanical properties of the final tubes also come out excellent promising no leakage under high pressure no deformation after cold-bent and no cracks when flaring and flattening ensuring the efficient operation in all service.

1 arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> Chemical analysis [%] of  EN10305-1 20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\" width=\"100%\"> Steel grade C Si Mn P S V Nb Al EN10305-1 E215 ≤0,10 ≤0,05 ≤0,70 ≤0,025 ≤0,025 - - ≥0,025 EN10305-1 E215 ≤0,17 ≤0,35 ≤1,20 ≤0,025 ≤0,025 - - - EN10305-1 E215 ≤0,22 ≤0,55 ≤1,60 ≤0,025 ≤0,025 - - -

1 arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\">  Mechanical properties of  EN10305-1 20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\" width=\"100%\"> Steel grade +C +LC +SR +A +N Rm A Rm A Rm ReH A Rm A Rm ReH A MPa % MPa % MPa MPa % MPa % MPa MPa % E215 430 8 380 12 380 280 16 280 30 290 – 430 215 30 E235 480 6 420 10 420 350 16 315 25 340 – 480 235 25 E355 640 4 580 7 580 450 10 450 22 490 – 630 355 22

1 arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> Quality grade

20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> The tubes are supplied in the following quality grades :

20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> 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. Theses requirements and corresponding tests must be agreed, with the customer having to specify his requirements at the time of enquiry and on ordering.

1 arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> Condition on delivery: 20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\" width=\"100%\"> Term Symbol Explanation Cold-finished/hard
(cold-finished as-drawn) BK No heat treatment after the last cold-forming process. The tubes therefore have only low deformability. Cold-finished/soft
(lightly cold-worked) BKW After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits. Annealed GBK After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum. Normalized NBK The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.