... standard a179 /sa179 heat exchanger tube 2)OD 19.05-508mm 3)WT: 1-60mm Product DescriptionApplication: For high, middle, low pressure ... Grade A, C, D ASTM A192 ASTM A210 GradeA-1, C BS3059-I 320 CFS BS3059-II 360, 440, ... , S1, S2, TC1, TC2 EN10216-1 P195TR1/TR2, P235TR1/TR2, P265TR1/TR2 EN10216-2 P195GH, P235GH, P265GH, TC1, TC2 ... . seamless round pipe astm/asme standard a179 /sa179 heat exchanger tube