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Hastelloy C-59

Hastelloy C-59 / N06059 / NS3311 / ALLOY 59 / 2.4605
The chemically stable and high-temperature resistant nickel and cobalt alloy 2.4605 (alloy 59) is mainly used in the chemical industry, flue gas desulphurisation plants, paper industry.

Alloy 59 is a nickel-chromium-molybdenum alloy with excellent corrosion resistance and high mechanical strength. The alloy has excellent resistance to both oxidizing and reducing media, and possesses superior resistance to chloride pitting and stress corrosion cracking.

The alloy is widely used in the most severe environments. Some applications include: flue gas scrubber components, bleach plant and digester components for the pulp and paper industry, sour gas handling equipment, sulfuric acid coolers, waste incinerators and seawater equipment. 

Hastelloy C-59 Mechanical Properties:
Temper Annealed
Tensile Rm 100 ksi (min)
Tensile Rm 690 MPa (min)
R.p. 0.2% Yield 45 ksi (min)
R.p. 0.2% Yield 310 MPa (min)
Elongation (2” or 4D gl) 40 % (min)

Hastelloy C-59 Chemical Composition (% by weight):
Element Min Max
C - 0.001
Si - 0.1
Mn - 0.5
P - 0.015
S - 0.01
Al 0.1 0.4
Co - 0.3
Cr 22 24
Cu - 0.5
Fe - 1.5
Mo 15 16.5
Ni Balance

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