... 3. Material: Gr1,Gr2, Gr7, Gr9, etc Titanium tube /pipe for heat exchanger or condenserSPECIFICATIONMATERIALSize Range mmDESCRIPTIONGB/T3624TA1, TA2, TA9, TA10 ... TA2, TA9, TA10, TA18 5~76Titanium and Titanium Alloy tubes for condensers and Heat ExchangersASTM B338/ ASME SB338Gr.1, Gr.2 ... 9, Gr.12, Gr.165~76Titanium and Titanium Alloy tubes for condensers and Heat ExchangersASTM B337/ ASME SB337Gr.1, Gr. ...