Lega STELLITE® 1

STELLITE-Alloy1

STELLITE® Alloy 1 Product Introduction

STELLITE® Alloy 1 is a cobalt-based superalloy known for its exceptional wear resistance, high strength at elevated temperatures, and corrosion resistance. This article provides a comprehensive introduction to STELLITE® Alloy 1, detailing its chemical composition, mechanical properties, performance characteristics, industry applications, shapes, sizes, production standards, welding, processing, polishing, heat treatment, advantages, disadvantages, and comparisons with similar materials.

Composizione chimica

STELLITE® Alloy 1 primarily consists of cobalt with significant additions of chromium, tungsten, and carbon for enhanced mechanical properties and wear resistance.

ElementoComposizione (%)
Cobalto (Co)58.0 – 64.0
Cromo (Cr)27.0 – 32.0
Tungsteno (W)3.0 – 5.0
Carbonio (C)1.0 – 2.5
Silicon (Si)1,0 massimo
Ferro (Fe)3.0 – 5.0
Manganese (Mn)1,0 massimo
Nichel (Ni)1,0 massimo
Fosforo (P)00,03 massimo
Zolfo (S)00,03 massimo

Proprietà meccaniche

STELLITE® Alloy 1 exhibits excellent mechanical properties suitable for high-wear applications:

ProprietàValore
Resistenza alla trazione, ksi (MPa)140 (965) min
Limite di snervamento (compensazione dello 0,2%), ksi (MPa)85 (586) min
Allungamento (% in 2 pollici)20 minuti
Durezza, Rockwell C (HRC)42 – 48

Caratteristiche prestazionali

STELLITE® Alloy 1 offers outstanding performance in demanding conditions:

  • Resistenza all'usura: Exceptional resistance to abrasion, erosion, and metal-to-metal wear, making it suitable for components exposed to high-stress wear environments.
  • Resistenza alla corrosione: Good resistance to oxidation and corrosion in high-temperature environments, including acids and alkalis.
  • Resistenza alle alte temperature: Maintains high strength and hardness at elevated temperatures, up to approximately 1200°F (650°C).

Applicazioni industriali

STELLITE® Alloy 1 is widely used in various industries for its wear and corrosion resistance properties:

Settore industrialeApplicazioni
AerospazialeAircraft engine components, turbine blades, and wear-resistant coatings.
Olio e gasValve seats, pump components, and drilling tools exposed to abrasive environments and corrosive fluids.
Produzione di energiaGas turbine blades, boiler components, and steam turbine seals requiring high wear resistance and durability.
Industrial MachineryCutting tools, extrusion dies, and wear plates in manufacturing equipment.

Forme, dimensioni e standard di produzione

Forma del prodottoForme disponibiliTaglie disponibiliStandard di produzione
BarreBarre tonde, barre quadreDiametro: 0,25″ – 6,0″ (6,35 mm – 152,4 mm)ASTM A732
Lastre/FogliPiatti, FogliSpessore: 0,025″ – 1.000″ (0,64 mm – 25,4 mm)ASTM A732
Welding RodsRodsDiameter: 0.125″ – 0.500″ (3.18mm – 12.7mm)AWS A5.13

Standard e gradi corrispondenti

STELLITE® Alloy 1 adheres to industry standards and grades for quality assurance:

Paese/regioneStandard/Grado
Stati Uniti d'AmericaAMS 5387
EuropaDIN 2.4778
GermaniaCoCr28W15Ni
FranciaST 1

Saldatura, Lavorazione, Lucidatura, Trattamento Termico

ProcessoDettagli
SaldaturaCan be welded using conventional methods such as TIG and MIG welding with preheating and post-weld heat treatment to maintain properties.
in lavorazioneMachinable using carbide tooling, although high cobalt content requires slower speeds and heavy feed rates.
LucidaturaCapable of achieving high polish finishes for improved wear resistance and aesthetic appeal.
Trattamento termicoAnnealing at 1800°F (980°C) followed by rapid quenching optimizes material properties and reduces residual stress.

Vantaggi e svantaggi

AspettoDettagli
VantaggiHigh wear resistance, excellent strength at elevated temperatures, good corrosion resistance, and suitability for extreme environments.
SvantaggiHigher cost compared to conventional materials, requires specialized machining and welding techniques due to high cobalt content.

Prodotti simili

Nome del prodottoConfronto
STELLITE® Alloy 6Similar in composition but higher tungsten content, offering superior resistance to galling and abrasion.
STELLITE® Alloy 12Lower carbon content, providing improved weldability and machinability compared to Alloy 1.

Confronto di prodotti simili

Proprietà/funzionalitàSTELLITE® Alloy 1STELLITE® Alloy 6STELLITE® Alloy 12
Contenuto di cobalto (%)58.0 – 64.054.0 – 62.031.0 – 35.0
Contenuto di cromo (%)27.0 – 32.027.0 – 32.08.0 – 10.0
Tungsten Content (%)3.0 – 5.08.0 – 10.000,5 massimo
Durezza, Rockwell C (HRC)42 – 4848 – 5528 – 36
ApplicazioniWear-resistant coatings, turbine componentsValve components, extrusion diesWelding electrodes, pump parts

This comprehensive article offers a detailed introduction to STELLITE® Alloy 1, highlighting its chemical composition, mechanical properties, performance characteristics, industrial applications, available forms and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and comparisons with similar alloys. Engineers, manufacturers, and professionals seeking high-performance materials for wear and corrosion resistance applications will find this information invaluable for selecting the appropriate alloy for their specific needs.