UNS Number N06059
Alloy 59 is a nickel-chromium-molybdenum alloy, which has particularly low concentrations of carbon and silica and is characterized by excellent corrosion resistance as well as high strength.

Available Forms of Alloy 59 at Rooplaxmi Steels:

•           Sheet
•           Plate
•           Bar

 

 

Characteristics of Alloy 59:

•           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, sulfuric and salt acids, but especially against sulfur/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 sensitivation.

Alloy 59 Chemical Composition, %:

Fe	Cr	Ni	Mo	C	S	Mn	Si
1.5 max	22.0-24.0	Balance	15.0-16.5	0.01 max	0.01 max	0.5 max	0.1 max

 

Cu	P	Al	Co
0.5 max	0.015 max	0.1-0.4	0.3 max

 

 

Application of Alloy 59:

•           Plant components for organic chemistry processes with media containing chloride, especially where catalytic systems on chloride basis are used.
•           Multi-purpose plants in the chemicals industry
•           Plant parts in active substance preparation and the pharmaceuticals industry
•           Scrubber, heat exchangers, flaps, ventilators and agitators for flue gas desulfurization (FGD) in fossil fuel power plants and waste combustion plants
•           SO2-washers for ship diesel engines
•           Components for seawater and concentrated brines
•           Equipment and components for geothermal energy and acid gas applications
•           Reactors for acetic acids and acetic anhydrides
•           Reactors for hydrofluoric acid
•           Sulfuric acid coolers

 

Alloy 59 ASTM Specification:

Sheet / Plate	Bar
B575	B574, B564

 

Mechanical Properties of Alloy 59:
At Room Temperature

Tensile Strength (sheet and strip 0.5 to 6.4 mm)	690 Mpa or 100000 psi
Yield strength (rod, bar, forgings > 100 mm)	(0.2 % offset) 320 Mpa or 46400 psi
Elongation at break	40 %