... treatment or over 1200°F(650) after cold-drawnInspections and Tests Performed: Chemical Composition, Mechanical Properties(Tensile Strength,Yield ... Elongation, Flaring, Flattening, Flange, Hardness, Impact Test), Dimension and Surface Test, Non-destructive Test, Hydrostatic Test.Surface treatment:Oil ... , Shot Blasting. SA179 Seamless Cold-Drawn Steel tube & pipe for condenser and heat-exchanger