Standard: EN10305-4
Steel tubes for precision applications.Technical delivery conditions.Seamless cold drawn tubes
Applications: for hydraulic and pneumatic power systems
Size range: O.D.:6-280mm W.T.:0.5-30mm L:max12000mm
| Steel Grade and Chemical Compositions | |||||
| Steel Grade | C | Si | Mn | P | |
| Steel name | Steel number | max | max | max | max |
| E215 | 1.0212 | 0.10 | 0.05 | 0.70 | 0.025 |
| E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 |
| E355 | 1.0580 | 0.22 | 0.55 | 1.60 | 0.025 |
a Elements not included in this table (but see footnote b) shall not be intentionally added to the steel without the
agreement of the purchaser,except for elements which may be added for finishing the cast. All appropriate measures
shall be taken to prevent the addition of undesirable elements from scrap or other materials used in the steel making
process.
| Si | ≤0.55 | +0.05 | |||||
| Mn | ≤1.60 | +0.1 | |||||
| P | ≤0.025 | +0.005 | |||||
| S | ≤0.015 | +0.003 | |||||
| Al | ≤0.025 | -0.005 | |||||
| Mechanical properties at room temperature | |||||||
| Steel grade | Yield strengtha ReH min Mpa | Tensile strengtha Rm min Mpa | Elongation A min % | ||||
| Steel Name | steel Nubmer | ||||||
| E215 | 1.0212 | 215 | 290-430 | 30 | |||
| E235 | 1.0308 | 235 | 340-480 | 25 | |||
| E355 | 1.0580 | 355 | 490-630 | 22 | |||
product name:hydraulic steel tube
