... content maintains a ductile, austenitic structure. Thus, alloy 800 is readily formed, welded, and machined Chemical composition ... CHAOWEI:Pipe, Tube - ASTM B 163 & ASME SB 163 (Seamless Condenser & Heat Exchanger Tubes), ASTM ... B 407/B829 & ASME SB 407/SB 829 (Seamless Pipe & Tubes), ASTM B 514 ... Strip), ASTM B 409/B 906 & ASME SB 409/SB 906 (Plate, Sheet, and Strip), ASME Code ...