Our spec covers seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar ones ... exchangers,condensers, and similar heat transfer apparatus.Production Standard, Steel Grade: ASTM A179 Grade A,C,DDelivery Conditions: Heat ... :Oil-dip, Varnish, Passivation, Phosphorization, Shot Blasting. SA179 Seamless Cold-Drawn Steel tube & pipe for condenser and heat-exchanger