Thank you for the suggestion. In fact, this is a 1956 Siemens make 32 tph steam condenser of 1200 m2 surface area working under 0.027 ata(a) pressure. I'll check the composition of the materials you have mentioned. Thank you.
We are planning to retube a very old steam condenser of German make. The tube specs is SO,MS 71 F 38 with 0.04% arsenic with 23 od and 1mm thk. Can somebody suggest me it's equivalent in ASTM?
Thanks in advance.