610mm 17 48mm SCH 40 ERW Steel Pipe
610mm 17 48mm SCH 40 ERW Steel Pipe, ASTM A53B Steel Pipe Black 24 inch SCH 40 SRL BE HYSP ASTM A53B Steel Pipe Black 24 inch SCH 40 SRL BE. According to ASTM A53 Pipe Spec, our A53 steel pipe dimension tolerance is strictly with standard: we apply the wall thickness tolerance control within +/12.5%, and outside diameter tolerance within +/1%. And our weight tolerance is also within +/12.5%. You please trust us in the A53 grade B pipe quality in HYSPHua Yuan Steel Pipe.