|
Alloy |
UNS Number |
|
Alloy 59 |
UNS N06059 |
GENERAL PROPERTIES
Alloy 59 is a nickel-chromium-molybdenum alloy with high mechanical strength and excellent corrosion resistance. The alloy also possesses high resistance to stress corrosion cracking, chloride pitting and oxidizing and reducing media.
RESISTANCE TO CORROSION
Excellent resistance against a multitude of corrosive media under oxidizing and reducing conditions, outstanding resistance against chloride induced pitting and crevice corrosion, as well as resistance against stress corrosion cracking, excellent resistance in mineral acids such as nitric, phosphoric, sulphuric and salt acids, but especially against sulphur/salt acid mixtures, excellent resistance in contaminated mineral acids, very good processing characteristics and weldability with low propensity to form hot cracks, very resistant to sensitization.
PHYSICAL PROPERTIES
|
Melting Point (°C) |
Density |
Modulus of Elasticity |
|
377 – 392 |
8.6g/cm3 |
210 GPa |
MECHANICAL PROPERTIES
|
Alloy |
Tensile Strength |
Yield Strength |
% Elongation |
|
59 |
100,000 |
46,400 |
40 |
CHEMICAL PROPERTIES
|
Alloy |
C |
Mn |
Cr |
Fe |
Si |
Mo |
Co |
P |
Cu |
Ni |
|
59 |
0.01 |
0.5 |
22.0-24.0 |
1.5 |
0.1 |
15-16.5 |
0.3 |
0.025 |
0.5 |
Bal |
WELDING
Alloy 59 can be welded using conventional processes with metals of the same type as well as many other metals. This includes TIG, GMAW (MIG/MAG), plasma, electron beam welding and handheld electrical welding.
HEAT TREATMENT
Alloy 59 should be solution annealed between 1100-1180°C (2010 and 2150°F) and cooled quickly. Water quenching is preferred to obtain maximum corrosion resistance.
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