Stress Relieved Steel Tubes
| Cold drawn or cold rolled precision seamless steel tubes precision seamless tubes | |
|---|---|
| Application: | for Auto use;for machinery use;Oil cylinder tube;Motorcycle shock reducer steel tubes;Auto shock reducer inner cylinder |
| Size(mm): | O.D.:6.0-76W.T.:1-6 |
Mechanical Properties(Mpa):Grade Chemical Composition(%): C max Si max Mn P max S max St 35 0.17 0.35 ≥0.40 0.025 0.025 St 45 0.21 0.35 ≥0.40 0.025 0.025 St 52 0.22 0.55 ≤1.60 0.025 0.025 Steel grade Chemical Composition(%): Steel name Steel number C max Si max Mn P max S max Al min E215 1.0212 0.10 0.05 0.70 0.025 0.025 0.025 E235 1.0308 0.17 0.35 1.20 0.025 0.025 - E355 1.0580 0.22 0.55 1.60 0.025 0.025 -
Steel gradeBK BKW BKS GBK NBK RmN/mm
minmin RmN/mm
minmin N/mm
minReH
N/mm
minmin N/mm
minmin N/mm
minReH
N/mm
minmin St35 480 6 420 10 420 315 14 315 25 340-470 235 25 St45 580 5 520 8 520 375 12 390 21 440-570 235 21 St52 640 4 580 7 580 420 10 490 22 490-630 355 22 Steel grade Minimum values for the delivery condition Steel name Steel number + C + LC + SR + A + N Rm Mpa A% Rm Mpa A% Rm Mpa ReH Mpa A% ReH Mpa A% Rm Mpa ReH Mpa A% E215 1.0212 430 8 380 12 380 280 16 280 30 290-430 215 30 E235 1.0308 480 6 420 10 420 350 16 315 25 340-480 235 25 E355 1.0580 640 4 580 7 580 450 10 450 22 490-630 355 22
Stress Relieved Steel Tubes 
