EN 10305 Precision Seamless Steel Tube
1)DIN 2391/EN 10305 seamless steel tube
2)O.D.:10.0-114.3mm W.T.:1-40mm Lmax 16.5m
3)Grade:St 35 St 45 St 52 E215 E235 E355
4)Cold drawn or cold rolled precision seamless steel tubes
inside precision seamless tubes for hydraulic pressure and pneumatic services
5)Application: for Auto usd;for machinery use;Oil cylinder tube;Motorcycle shock reducer steel tubes;/Auto shock reducer inner cylinder
Steel | Chemical analysis [%] |
grade | C | Si | Mn | P | S | V | Nb | Al |
E215 | ≤0,10 | ≤0,05 | ≤0,70 | ≤0,025 | ≤0,025 | - | - | ≥0,025 |
E235 | ≤0,17 | ≤0,35 | ≤1,20 | ≤0,025 | ≤0,025 | - | - | - |
E355 | ≤0,22 | ≤0,55 | ≤1,60 | ≤0,025 | ≤0,025 | - | - | - |
E410 | 0,16 - 0,22 | 0,15 - 0,30 | 1,30 - 1,70 | ≤0,030 | ≤0,035 | 0,08 - 0,15 | ≤0,070 | 0,010 - 0,060 |
Steel | Mechanical properties : minimum values for supply conditions |
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 |
E410 | 750 | 4 | 700 | 8 | 690 | 590 | 12 | 520 | 22 | 550 - 700 | 410 | 22 |