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Hastelloy G3

Designated as UNS N06985 or DIN 2.4619, Hastelloy G3 (also known as “Alloy G3”) is a nickel-chromium-iron alloy with additions of molybdenum and copper. It has good weldability and resistance to intergranular corrosion in the welded condition. The low carbon content helps prevent sensitization and consequent intergranular corrosion of weld-heat affected zones. Hastelloy G3 is generally used for flue gas scrubbers and for handling reducing acids such as phosphoric and sulfuric.

Hastelloy G3 strip in coils.

Hastelloy G3 strip in coils.

1. Composition Requirements

The Chemical Composition of Hastelloy G3, %
NiBalance
Cr21.0-23.5
Fe18.0-21.0
Co≤5.0
Mo6.0-8.0
W≤1.50
Nb≤0.5
C≤0.015
Mn≤1.0
Si≤1.0
Cu1.5-2.5

2. Mechanical Properties of Hastelloy G3

Tensile Strength, min.Yield Strength, min.Elongation, min.Hardness, min.
MpaksiMpaksi%HRB
690100320475079

3. Physical Properties of Hastelloy G3

DensityMelting RangeSpecific HeatElectrical Resistivity
g/cm3°C°FJ/kg. kBtu/lb.°FµΩ·m
8.141260-13452300-24504520.1081180

4. Product Forms

Hebei Metals supplies Hastelloy G3 material in the form of sheets, strips, coils, wires, bars, forgings, pipes, fittings or flanges.

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    Hebei Metals Industrial Limited
    (Shijiazhuang Metalsin Pipeline Tech Co., Ltd)
    No. 176, Zhonghua South Street, Shijiazhuang, China.
    Tel: +86-311-89642206
    Fax:+86-311-67906676
    Web: www.metalspiping.com
    Email: sales@metalspiping.com