Lega INCOLOY® 028

INCOLOY-Alloy-028


INCOLOY Alloy 028 (UNS N08028) Product Introduction

Composizione chimica

ElementoComposizione (%)
Nichel (Ni)30.0 – 34.0
Cromo (Cr)26.0 – 30.0
Ferro (Fe)26.0 min
Molibdeno (Mo)2.0 – 3.0
Rame1.5 – 3.0
Manganese (Mn)2,0 massimo
Silicon (Si)00,03 massimo
Carbonio (C)00,02 massimo
Zolfo (S)00,03 massimo
Fosforo (P)00,03 massimo

Proprietà meccaniche

ProprietàValore
Resistenza alla trazione, ksi (MPa)100 (690) min
Limite di snervamento (compensazione dello 0,2%), ksi (MPa)45 (310) min
Allungamento (% in 2 pollici)40 minuti
Hardness, Brinell (HB)200 max

Prestazioni a diverse temperature

Intervallo di temperaturaPrestazione
Temperatura ambienteExcellent mechanical properties and corrosion resistance.
Elevated Temperatures (up to 2000°F / 1093°C)Maintains strength and oxidation resistance.
Low TemperaturesRetains toughness and ductility down to cryogenic temperatures.

Applicazioni industriali

Settore industrialeApplicazioni
Elaborazione chimicaChemical reactors, sulfuric acid production.
PetrolchimicoHeat exchangers, piping systems.
Olio e gasOffshore platforms, seawater applications.
Produzione di energiaBoiler components, turbine exhaust systems.

Shape, Size, and Production Standards

Forma del prodottoForme disponibiliTaglie disponibiliStandard di produzione
FogliPiatti, FogliVarious thicknessesASTM B688, ASTM B709
BarreBarre tonde, barre esagonaliDiameter rangeASTM B805
Tubi/tubazioniTubi senza saldatura, tubi saldatiVarious dimensionsASTM B690, ASTM B775

Standard e gradi corrispondenti

Paese/regioneStandard/Grado
Stati Uniti d'AmericaUNS N08028
Europa1.4563
GermaniaX1NiCrMoCu31-27-4
FranciaZ1NCDU31-27-03

Saldatura, Lavorazione, Lucidatura, Trattamento Termico

ProcessoDettagli
SaldaturaExcellent weldability using TIG, MIG methods.
in lavorazioneCold and hot forming processes. Machinable with standard methods.
LucidaturaAchieves smooth finishes suitable for sanitary applications.
Trattamento termicoAnnealing at 2050°F (1121°C) followed by rapid quenching.

Lavorazione a freddo, vantaggi e svantaggi

AspettoDettagli
Lavorazione a freddoExcellent formability and cold workability.
VantaggiHigh corrosion resistance in a wide range of aggressive environments. Good mechanical properties at elevated temperatures.
SvantaggiHigher initial cost compared to standard stainless steels. Requires expertise in welding to prevent sensitization.

Prodotti simili

Nome del prodottoConfronto
Inconel 625 (UNS N06625)Lower nickel content, similar applications in corrosive environments.
Hastelloy C-276 (UNS N10276)Higher molybdenum content, superior resistance to pitting and crevice corrosion.

This structured presentation offers a detailed overview of INCOLOY Alloy 028 (UNS N08028), encompassing its chemical composition, mechanical properties, performance characteristics at different temperatures, industry applications, available shapes and sizes, production standards, welding and processing capabilities, as well as the advantages, disadvantages, and comparable products. Each section is organized into tables to ensure clarity and accessibility of technical specifications and comparisons.