| Section Shape |
Round |
| Secondary Or Not |
Non-secondary |
| Application |
Structure Pipe |
| Technique |
Hot Rolled |
| Certification |
CE |
| Alloy Or Not |
Is Alloy |
| Thickness |
7 - 25 mm |
| Outer Diameter |
76 - 178 mm |
| Place of Origin |
China (Mainland) |
Steel Tubes for Automobile Seamless Hot-rolled Steel Pipe Serves as manufacture of auto axle and auto axle housing Standard:GB/T 8162, YB/T 5035 MAL 010 Grades:45Mn2,25MnCr,20Mn2 Dimension: OD: 76mm -- 178mm WT: 7mm -- 25mm Mechanical Properties: Grade TS(Mpa) YS(Mpa) Elongation(%) ≥ ≥ ≥ 45 590 335 14 45Mn2 885 735 10 25MnCr600-785350 16 20Mn2785590 10 Chemical Composition(%) Grade C Si MnPS Cr Ni Cu ≤ ≤ ≤ ≤ ≤ 450.42-0.5 0.17-0.370.5-0.80.030.025 0.25 0.250.25 45Mn20.42-0.49 0.17-0.37 1.4-1.8 0.0250.025 0.3 0.3 0.2 25MnCr0.2-0.280.15-0.35 1.2-1.7 0.035 0.04 0.3-0.60.2 0.3 20Mn20.17-0.240.17-0.371.4-1.8 0.0350.035 0.25 0.25 0.2