GB/T4171 weathering steel pipe
GB/T4171 Q355GNH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.12 | 0.20-0.75 | ≤1.00 | 0.07-0.15 | ≤0.020 | 0.25-0.55 | 0.30-1.25 | ≤0.65 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16≤40 | >40≤60 | >60 | 490-630 | ≤16 | >16≤40 | >40≤60 | >60 |
| 355 | 345 | - | - | 22 | 22 | - | - | |
GB/T4171 Q295GNH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.12 | 0.10-0.40 | 0.20-0.50 | 0.07-0.12 | ≤0.020 | 0.25-0.45 | 0.30-0.65 | 0.25-0.50 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | 430-560 | ≤16 | >16≤40 | >40≤60 | >60 |
| 295 | 285 | - | - | 24 | 24 | - | - | |
GB/T4171 Q265GNH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.12 | 0.10-0.40 | 0.20-0.50 | 0.07-0.12 | ≤0.020 | 0.20-0.45 | 0.30-0.65 | 0.25-0.50 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | ≥410 | ≤16 | >16≤40 | >40≤60 | >60 |
| 265 | - | - | - | 27 | - | - | - | |
GB/T4171 Q235NH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.13 | 0.10-0.40 | 0.20-0.60 | ≤0.030 | ≤0.030 | 0.20-0.55 | 0.40-0.80 | ≤0.65 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | 360-510 | ≤16 | >16≤40 | >40≤60 | >60 |
| 235 | 225 | 215 | - | 25 | 25 | 24 | 23 | |
GB/T4171 Q460NH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.12 | ≤0.65 | ≤0.15 | ≤0.025 | ≤0.030 | 0.20-0.55 | 0.30-1.25 | 0.12-0.65 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | 570-730 | ≤16 | >16≤40 | >40≤60 | >60 |
| 460 | 450 | 440 | - | 20 | 20 | 19 | - | |
GB/T4171 Q310GNH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.12 | 0.20-0.75 | 0.20-0.50 | 0.07-0.12 | ≤0.020 | 0.20-0.50 | 0.30-1.25 | ≤0.65 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | ≥450 | ≤16 | >16≤40 | >40≤60 | >60 |
| 310 | - | - | - | 26 | - | - | - | |
GB/T4171 Q295NH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.15 | 0.10-0.50 | 0.30-1.00 | ≤0.030 | ≤0.030 | 0.25-0.55 | 0.40-0.80 | ≤0.65 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | 430-560 | ≤16 | >16≤40 | >40≤60 | >60 |
| 295 | 285 | 275 | 255 | 24 | 24 | 23 | 22 | |
GB/T4171 Q355NH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.16 | ≤0.50 | 0.50-1.50 | ≤0.030 | ≤0.030 | 0.25-0.55 | 0.40-0.80 | ≤0.65 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | 490-630 | ≤16 | >16≤40 | >40≤60 | >60 |
| 355 | 345 | 335 | 325 | 22 | 22 | 21 | 20 | |
GB/T4171 Q415NH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.12 | ≤0.65 | ≤1.10 | ≤0.025 | ≤0.030 | 0.25-0.55 | 0.30-1.25 | 0.12-0.65 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | 520-680 | ≤16 | >16≤40 | >40≤60 | >60 |
| 415 | 405 | 395 | - | 22 | 22 | 20 | - | |
GB/T4171 Q550NH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.16 | ≤0.65 | ≤2.0 | ≤0.025 | ≤0.030 | 0.20-0.55 | 0.30-1.25 | 0.12-0.65 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | 620-780 | ≤16 | >16≤40 | >40≤60 | >60 |
| 550 | 540 | 530 | - | 16 | 16 | 15 | - | |
GB/T4171 Q500NH Weathering Steel Pipe
| C | Si | Mn | P | S | Cu | Cr | Ni | - |
| ≤0.12 | ≤0.65 | ≤2.0 | ≤0.025 | ≤0.030 | 0.20-0.55 | 0.30-1.25 | 0.12-0.65 | - |
| Yieldstrength(MPa) min for T in mm | Tensilestrength(Mpa) | Elongation(%) | ||||||
| ≤16 | >16,≤40 | >40≤60 | >60 | 600-760 | ≤16 | >16≤40 | >40≤60 | >60 |
| 500 | 490 | 480 | - | 18 | 16 | 15 | - | |
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