... apparatus Detailed Product Description Field application: For tubular heat exchangers,condensers, and similar heat transfer apparatus.Production Standard, Steel Grade: ASTM A179 ... Grade A,C,DDelivery Conditions: Heat treatment or over 1200°F(650) after cold-drawnInspections and ... Passivation, Phosphorization, Shot Blasting. SA179 shell tube and gas water Heat Exchanger Pipe