... , STPY400, STK400, STK490KSWELDEDSPPS38, SPPLOW TEMPERATURE PIPEASTM/ASMESEAMLESSA/SA333 GR.1, GR.3, GR.6JISSEAMLESSSTPL380, STPL450, STPL690ASTMWELDEDA671-CC60, CC65, CC70 etc..ALLOY STEEL ... STB410, STB510ASTM/ASMEWELDEDA/SA178, A/SA214JISWELDEDSTB340LOW TEMPERATURE TUBEASTM/ASMESEAMLESSA334 GR.1, GR.6JISSEAMLESSSTBL380, STBL450, STBL690ALLOY STEEL TUBEASTM/ASMESEAMLESSA/SA213-T5, T9 ...