Incoloy alloy 020

Description

Overview:

Backed by features such as excellent resistance to corrosion, Incoloy Alloy 020 or UNS N08020 is perfect for industrial use. This nickel-based alloy can resist chemical environments that consist of sulfuric acid. Not just that, it comes with excellent resistance to nitric acid, chloride, or phosphoric acid environments.

Alloy 020 is widely used in various applications, including gasoline, explosives, solvents, organic, inorganic, pharmaceuticals, as well as food materials. This versatile metal alloy is also fabricated for use with heat exchangers, mixing tanks, process piping, pumps, pickling equipment, valves, pumps, fittings, & fasteners.

Common Names:

• Alloy 020
• UNS N08020
• UNS N08028

Executive Standards:

Forging Stock, Wire, Bar, & Rod-

• ASTM B 462
• ISO 9723
• ISO 9724
• ASTM B 472
• ASME SB 473
• ISO 9725
• ASTM B 473
• ASME SB 472
• DIN 17752-17754

Sheet, Plate, & Strip:

• ASTM A 240
• ASTM B 906
• ASME SA 240
• ASTM A 480
• DIN 17750
• ASTM B 463
• ASME SB 906
• ASME SA 480
• ISO 6208
• ASME SB 463

Tube & Pipe:

• ASTM B 729
• ASTM B 829
• ASTM B 464
• ASME SB 751
• ASME SB 464
• ASTM B 775
• ASTM B 474
• ASME SB 729
• ASME SB 829
• ASTM B 468
• ASTM B 751
• ASME SB 468
• ASME SB 775
• ASME SB 474
• ISO 6207
• DIN 77751

Others:

• ASTM B 366
• ASTM B 462
• DIN 17744
• ASTM B 471
• ASME SB-462
• ASME SB 471
• ASTM B 475
• ASME SB 366
• ASME SB 475

Chemical Properties:

Iron (%)	35
Nickel (%)	32-38
Chromium (%)	19-21
Molybdenum (%)	2-3
Copper (%)	3-4
Manganese (%)	Max 2
Silicon (%)	Max 1
Niobium (%)	Max 1
Others (%)	Remainder

Mechanical Properties:

Tensile (MPA)	683
Tensile (PSI)	99,000
Yield (MPA)	414
Yield (PSI)	60,000
Hardness	148
Elongation (%)	35

Physical Properties:

Density	Lb/In3	0.292
	G/CM3	8.08
Specific Heat	Btu/Ib.oF	0.12
	J/Kg.oC	500
Expansion Coefficient	77-212 oF	8.2
	25-100 oC	14.7
Electrical Resistivity	Ohm.circ mil/ft	651
	Ω⋅m	1.08
Thermal Conductivity	Btu.in/ft2.h. oF	85
	W/m.oC	12.3

Key Features:

• Corrosion Resistance: Incoloy 020 showcases an exceptional resistance to corrosion in environments with sulfuric acid.
• Crevice Corrosion Resistance: Incoloy alloy features molybdenum as a critical component in the metallic mix. This gives it the feature of crevice corrosion resistance as well as pitting resistance.
• Reduced Carbide Precipitation: The presence of niobium in the alloy helps reduce the carbide precipitation effect that happens during welding. Hence, it increases its resistance to intergranular corrosion.
• Decreased Stress-Corrosion: The enhanced nickel content within the alloy allows reduced cracking from stress-corrosion that happens due to the chloride-ion environment.

Product Forms Available:

• Tube
• Pipe
• Strip
• Sheet
• Plate
• Flat Bar
• Hexagon
• Forging stock
• Round Bar
• Wire

Applications:

• Tanks
• Piping
• Pumps
• Heat Exchangers
• Valves
• Fasteners
• Gasoline
• Explosives
• Food Industry

Possible Alternative Grades:

• Incoloy 800: This alloy is best used for condensation conditions in ammonia acid-based mediums. It also has high corrosion resistance to HNO3, H2SO4, or its mixed version.
• Incoloy 800H: This widely used nickel alloy is highly resistant to corrosion with top-notch mechanical properties such as weldability & workability.
• Incoloy 825: Incoloy 825 or alloy 825 is highly resistant to stress-corrosion from oxidation. It is commonly used in gas pipelines or steam coolers.
• Incoloy 901: This alloy is known for its age-hardening properties with added titanium & aluminum. It also houses traces of lower carbon & boron.

Frequently Asked Questions:

• What does the term Incoloy refer to?

Incoloy is a broad term that covers nickel-based superalloys manufactured by Special Metals Corporation.

• What is the material used in Incoloy?

This alloy is a nickel-rich metal that also comes with the addition of copper, molybdenum, & titanium.

• Is the Incoloy alloy magnetic?

Inconel is a term used to describe metal alloys rich in nickel. Even though it isn’t naturally magnetic, certain variants do have magnetic properties.

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