... and medium pressure boiler superheater tube, boiling water pipe, pipe size locomotivealloy steeltubeCr5Mo(P5,STFA25,T5,)15CrMo(P11,P12 ... high temperature, low temperature, corrosion SeamlessOil cracking tube20G12CrMo15CrMoGB9948-8810-530×1.5-36Refined plant oil refining furnace, heat exchange ... 316 316LGB/T14976-2002 GB13296-91 ASTM312 ASTM21332—530×2—60 Packaging Detail:Steel strips bundled,plastic ...