EN10305-1 E235 E355 +N Cold Drawn Precision Products Seamless Steel Tube
EN10305-1 standard specifies seamless cold drawn precision steel tubes. These tubes, typically made from E235 or E355 grades with a normalized delivery condition (+N), offer high dimensional accuracy and surface quality. Ideal for precision engineering applications, they undergo cold drawing to achieve tight tolerances. Manufactured with precision, these tubes exhibit excellent mechanical properties, making them suitable for various industrial uses such as hydraulic systems, automotive components, and more.
| Delivery Condition | BK | BKW | GBK | NBK (N) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Steel Grade | Rm Mpa (Min) | A % (Min) | Rm Mpa (Min) | A % (Min) | Rm Mpa (Min) | A % (Min) | Rm Mpa (Min) | ReH Mpa (Min) | A % (Min) |
| E215 | 430 | 8 | 380 | 12 | 280 | 30 | 290~430 | 215 | 30 |
| E235 | 480 | 6 | 420 | 10 | 315 | 25 | 340~480 | 235 | 25 |
| E255 | 580 | 5 | 520 | 8 | 390 | 21 | 440~570 | 255 | 21 |
| E355 | 640 | 4 | 580 | 7 | 450 | 22 | 490~630 | 355 | 22 |