... Exchanger Tube), ASTM B 165 (Seamless pipe and Tube), ASTM B 725 (Welded Pipe), ASTM B 730 (Welded Tube), ASTM B 751 (Welded Tube), ASTM ... B 775 (welded Pipe), ASTM ... (Seamless Pipe and Tube), ASME SB 725 (Welded Pipe), ASME SB 730 (Welded Tube),ASME SB 751 Seamless and Welded Tube), ASME SB 775 ...