Hastelloy G (UNS N06007 / W.Nr. 2.4618)

Hastelloy G (UNS N06007 / W.Nr. 2.4618) is a nickel-chromium-iron alloy with additions of molybdenum and copper which has good resistance to both oxidation and reduction.

Equivalent Grades

Hastelloy GNS3402Hastelloy GN06007Nicrofer 4520 hMo2.4618

Chemical Composition, %

Hastelloy G≤0.05≤1.01.0-2.0≤0.04≤0.0321.0-23.5Bal≤2.55.5-7.5≤1.01.75-2.50≤1.518.0-21.0

Typical Physical and Mechanical Properties (RT, Solution annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaELongation, %Hardness, HB

Available Products and Specifications

Rod, Bar, Wire and ForgingsASTM B581, ASME SB581, DIN 17752
Plate, Sheet and StripASTM B582, ASME SB582, DIN 17750, ISO 6208
Pipe and TubeASTM B619, ASTM B622, ASTM B626, ASTM B751, ASTM B775, ASTM B829, ASME SB619, ASME SB622, ASME SB626, ASME SB751, ASME SB775, ASME SB829
Welding ProductASTM B366, ASME SB366
OthersASTM B581, ASME SB581, DIN 17752


  • Good corrosion resistance
  • Well weldable and with good stability against grain border corrosion in welded condition


Hastelloy G finds its application in wet flue gas desulfurization process and manufacture of chemical process equipment.