Equivalent designations UNS N06030 DIN W. Nr. 2.4603 Form ASTM Rod B 581 Plate, sheet and strip B 582 Seamless pipe and tube B 622 Welded pipe B 619, B 775 Welded tube B 626, B 751 Welding fitting B 366 Forged or rolled pipe flange and forged fitting B 462 Billet and bar for reforging B 472 Chemical composition % Ni Cr Fe Mo W Co C Mn Si P S Cu Nb+Ta min balance 28.0 13.0 4.0 1.5 1.0 0.30 max 31.5 17.0 6.0 4.0 5.0 0.030 1.5 0.80 0.040 0.020 2.4 1.50 Physical properties Density 8.22 g/cm3 Melting range 1370-1400℃ Features: Hastelloy G-30 is a high chromium nickel-base alloy which has superior corrosion resistance over most other nickel and iron-base alloys in commercial phosphoric acid as well as many complex environments containing highly oxidizing acids such as nitric/hydrochloric, nitric/hydrofluoric and sulfuric acids. It resists the formation of grain boundary precipitates in the heat-affected zone, making it suitable for use in most chemical process environments in the as-welded condition. Applications: Chemical processing involving phosphoric acid, sulfuric acid and nitric acid; nuclear fuel reprocessing; nuclear waste processing; pickling operations; petrochemical; fertilizer manufacture; pesticide manufacture; and gold ore extraction.