Welded Pipe
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| Pipe Category | Standard | Main Grade |
| low pressure fluid pipe | GB/T3091 | Q195/GALV/Q235/GALV/Q345 |
| Longitudinal welded pipe | GB/T13793 | Q195/Q235/Q345 |
| Spiral Submerged Arc Welded Pipe | SY/T5037 | Q235/Q345 |
| Welded Line Pipe | API SPEC 5L/ISO 3183 GB/T9711 | L245(B)/L290(X42)/L320(X46)/L360(X52)/ L390(X56)/L415(X60)/L450(X65)/L485 (X70)/ L555(X80)/L625(X90)/L690(X100)/R/N/Q |
| Low Temp.EFW Pipe | ASTM A671/A671M | CB60/CB65/CB70/CC60/CC65/CC70 |
| Mid-Temp.High Pressure EFW Pipe | ASTM A672/A672M | B55/B60/B65/B70/C55/C60/C65/C70 |
| Hot Dipped Galvanized Pipe | ASTM A53/SATM A123/ASTM A153 | A/B |
| High-Temp.High Pressure EFW Pipe | ASTM A691/A691M | 1/2CR/1CR/4CR/3CR/5CR/9CR/91 |
| EU Standard Structure Pipe | EN10210 | S235/S275/S355/S420/S460 |
| EN10219 | S235/S275/S355/S420/S460 |