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    Many years of experience
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    European standards

PN-EN 10305-4 Tubes for hydraulic and pneumatic power systems

The pipes are used to manufacture  hydraulic and pneumatic power systems of the I generation and they are also used in the pipelines of hydraulic and pneumatic systems. They are manufactured as seamless cold drawn tubes. They are provided in the  +N delivery condition (normalized in a controlled atmosphere).

PN-EN 10305-4

Chemical composition

Steel grade % of mass
Symbol C max. Si max. Mn max. P max S max Al total. Max
E215 0,10 0,05 0,70 0,025 0,015 0,025
E235 0,17 0,35 1,20 0,025 0,015 -
E355 0,22 0,55 1,60 0,025 0,015 -


Mechanical properties in room temperature

Steel grade Yield limit ReH Min. MPa Tensile strength Rm Min MPa Elongation A Min %
E215 215 290 to 430 30
E235 235 235 to 480 25
E355 355 490 to 630 22


Inspection and test list

Inspection and test type Inspection and test frequency
Internal tests Acceptance tests
Chemical analysis M M
Tensile testing M One pipe per every tested batch
Flattening test or expansion test M 2 per every tested batch
Dimension verification M M
Visual inspection M M