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E355 EN10305 Round Thin Wall Steel Tube ST52DIN2391 Hydraulic Parts Using Cold Rolled
Description:
| Mechanical properties at room temperature | |||||||||
| Delivery Condition | BK | BKW | GBK | NBK (N) | |||||
| Steel Grade | Rm | A % | Rm | A % | Rm | A % | Rm | ReH | A % |
| Mpa (Min) | (Min) | Mpa(Min) | (Min) | Mpa(Min) | (Min) | Mpa(Min) | Mpa(Min) | (Min) | |
| E255 | 580 | 5 | 520 | 8 | 390 | 21 | 440~570 | 255 | 21 |
| E355 | 640 | 4 | 580 | 7 | 450 | 22 | 490~630 | 355 | 22 |
| E235 | 480 | 6 | 420 | 10 | 315 | 25 | 340~480 | 235 | 25 |
| E215 | 430 | 8 | 380 | 12 | 280 | 30 | 290~430 | 215 | 30 |
Delivery Condition
1. NBK(+N)
after cold forming, eventually above phase transition point, in a
protective atmosphere of annealing oxidation medium
2. GBK(+A)
after cold forming, annealing in non oxidizing medium protective
gas
3. BK(+C)
the final heat treatment after cold forming, threfore small steel
pipe plasticly, the plasticly degree does not guarantee
Application
Fuel injection lines/nozzles for diesel or gasoline engine;
Compressed natured gas CNG tube
Drive transmission: steering column elements
Gear shafts, hand brake, front axles, airbag inflators,
stabilizers, seat fasteners, front-wheel drive shafts
Mechanical structure pipe parts in automobile,motorcycles and
vehicle
Hydraulic circuits, pneumatic lines and hydraulic suspension
Hydraulic cylinders
