INCOLOY® alloy 020

INCOLOY-Alloy-020


INCOLOY Alloy 020 (UNS N08020) Product Introduction

Chemical Composition

ElementComposition (%)
Nickel (Ni)32.0 – 38.0
Chromium (Cr)19.0 – 21.0
Iron (Fe)Bal.
Copper (Cu)3.0 – 4.0
Molybdenum (Mo)2.0 – 3.0
Manganese (Mn)2.0 max
Carbon (C)0.02 max
Silicon (Si)1.0 max
Sulfur (S)0.035 max
Phosphorus (P)0.045 max

Mechanical Properties

PropertyValue
Tensile Strength, ksi (MPa)80 (550) min
Yield Strength (0.2% offset), ksi (MPa)35 (240) min
Elongation (% in 2 inches)30 min
Hardness, Brinell (HB)150 max

Performance at Different Temperatures

Temperature RangePerformance
Room TemperatureGood mechanical properties and corrosion resistance.
High Temperatures (up to 1900°F / 1040°C)Maintains strength and oxidation resistance.
Low TemperaturesRetains toughness and ductility at cryogenic temperatures.

Industry Applications

Industry SectorApplications
Chemical ProcessingSulfuric acid production, phosphoric acid production.
PetrochemicalReactors, heat exchangers.
Food ProcessingFood handling equipment.
PharmaceuticalPharmaceutical processing equipment, reactors.

Shape, Size, and Production Standards

Product FormShapes AvailableSizes AvailableProduction Standards
SheetsPlates, SheetsVarious thicknessesASTM B463, ASTM B366
BarsRound bars, hexagonal barsDiameter rangeASTM B462, ASTM B464
Tubes/PipesSeamless tubes, welded pipesVarious dimensionsASME SB-462, ASME SB-464

Standards and Corresponding Grades

Country/RegionStandard/Grade
USAUNS N08020
Europe2.4660
JapanNW 08020
ChinaNS143

Welding, Processing, Polishing, Heat Treatment

ProcessDetails
WeldingGood weldability using TIG, MIG methods.
ProcessingCold and hot forming processes. Machinable with standard methods.
PolishingAchieves smooth finishes suitable for sanitary applications.
Heat TreatmentAnnealing at 1950°F (1065°C) followed by rapid quenching.

Cold Processing, Advantages, and Disadvantages

AspectDetails
Cold ProcessingExcellent formability and cold workability.
AdvantagesHigh corrosion resistance, good mechanical properties at elevated temperatures.
DisadvantagesHigher cost compared to standard stainless steels. Requires careful welding practices to avoid sensitization.

Similar Products

Product NameComparison
Incoloy 800 (UNS N08800)Lower nickel content, similar applications.
Incoloy 825 (UNS N08825)Higher molybdenum and copper content, enhanced corrosion resistance.

This structured presentation provides a detailed insight into the chemical composition, mechanical properties, performance characteristics at different temperatures, industry applications, shapes and sizes available, production standards, welding and processing capabilities, as well as the advantages, disadvantages, and similar products related to INCOLOY Alloy 020 (UNS N08020). Each section is presented in a table format to ensure clarity and ease of reference for technical specifications and comparisons.