Hastelloy G-30/UNS N06030 sheet/bar/pipe
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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.



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