Equivalent designations UNS N06455 DIN W. Nr. 2.4610 Form ASTM Rod B 574 Plate, sheet and strip B 575 Seamless pipe and tube B 622 Welded pipe B 619, B 775 Welded tube B 626, B 751 Welding fitting B 366 Chemical composition % Ni Cr Mo Fe Co C Mn Si P S Ti min balance 14.0 14.0 max 18.0 17.0 3.0 2.0 0.015 1.00 0.08 0.040 0.030 0.70 Physical properties Density 8.64 g/cm3 Melting range 1350-1380℃ Features: Hastelloy C-4 has outstanding high-temperature stability, and has excellent resistance to stress-corrosion cracking and oxidizing atmospheres up to 1040℃. It has exceptional resistance to a wide variety of chemical process environments, including hot contaminated mineral acids, solvents, chlorine and chlorine contaminated media (organic and inorganic), formic and acetic acids, acetic anhydride, and seawater and brine solutions. Applications: Chemical processing involving wet chlorine, hypochloric acid, hydrochloric acid, acetic acid and acetic anhydride; flue gas scrubber systems; pickling operations; and electro-galvanizing. Note: Hastelloy is a registered trademark of Haynes International, Inc.