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.
Composição química
STELLITE® Alloy 1 primarily consists of cobalt with significant additions of chromium, tungsten, and carbon for enhanced mechanical properties and wear resistance.
Força de rendimento (compensação de 0,2%), ksi (MPa)
85 (586) min
Alongamento (% em 2 polegadas)
20 min
Dureza, Rockwell C (HRC)
42 – 48
Características de desempenho
STELLITE® Alloy 1 offers outstanding performance in demanding conditions:
Resistência ao desgaste:Exceptional resistance to abrasion, erosion, and metal-to-metal wear, making it suitable for components exposed to high-stress wear environments.
Resistência à corrosão:Good resistance to oxidation and corrosion in high-temperature environments, including acids and alkalis.
Resistência a altas temperaturas: Mantém alta resistência e dureza em temperaturas elevadas, até aproximadamente 1200°F (650°C).
Aplicações Industriais
STELLITE® Alloy 1 is widely used in various industries for its wear and corrosion resistance properties:
Setor Industrial
Formulários
Aeroespacial
Aircraft engine components, turbine blades, and wear-resistant coatings.
Petróleo e Gás
Valve seats, pump components, and drilling tools exposed to abrasive environments and corrosive fluids.
Geração de energia
Gas turbine blades, boiler components, and steam turbine seals requiring high wear resistance and durability.
Máquinas Industriais
Ferramentas de corte, matrizes de extrusão e placas de desgaste em equipamentos de fabricação.
Formas, tamanhos e padrões de produção
Formulário de produto
Formas disponíveis
Tamanhos disponíveis
Padrões de produção
Barras
Barras redondas, barras quadradas
Diâmetro: 0,25″ – 6,0″ (6,35mm – 152,4mm)
ASTM A732
Placas/Folhas
Pratos, Folhas
Espessura: 0,025″ – 1.000″ (0,64mm – 25,4mm)
ASTM A732
Varetas de soldagem
Varas
Diâmetro: 0,125″ – 0,500″ (3,18mm – 12,7mm)
AWS A5.13
Padrões e notas correspondentes
STELLITE® Alloy 1 adheres to industry standards and grades for quality assurance:
Country/Region
Standard/Grade
USA
AMS 5387
Europe
DIN 2.4778
Alemanha
CoCr28W15Ni
França
ST 1
Welding, Processing, Polishing, Heat Treatment
Processo
Detalhes
Soldagem
Pode ser soldado usando métodos convencionais como soldagem TIG e MIG com pré-aquecimento e tratamento térmico pós-soldagem para manter as propriedades.
Processing
Machinable using carbide tooling, although high cobalt content requires slower speeds and heavy feed rates.
Polimento
Capable of achieving high polish finishes for improved wear resistance and aesthetic appeal.
Tratamento térmico
Annealing at 1800°F (980°C) followed by rapid quenching optimizes material properties and reduces residual stress.
Vantagens e desvantagens
Aspecto
Detalhes
Vantagens
High wear resistance, excellent strength at elevated temperatures, good corrosion resistance, and suitability for extreme environments.
Desvantagens
Custo mais elevado em comparação aos materiais convencionais, requer técnicas especializadas de usinagem e soldagem devido ao alto teor de cobalto.
Produtos Similares
Product Name
Comparação
Liga STELLITE® 6
Similar in composition but higher tungsten content, offering superior resistance to galling and abrasion.
STELLITE® Alloy 12
Lower carbon content, providing improved weldability and machinability compared to Alloy 1.
Comparison of Similar Products
Propriedade/Recurso
STELLITE® Alloy 1
Liga STELLITE® 6
STELLITE® Alloy 12
Conteúdo de cobalto (%)
58.0 – 64.0
54,0 – 62,0
31.0 – 35.0
Conteúdo de cromo (%)
27,0 – 32,0
27,0 – 32,0
8,0 – 10,0
Conteúdo de tungstênio (%)
3.0 – 5.0
8,0 – 10,0
00,5 máx.
Dureza, Rockwell C (HRC)
42 – 48
48 – 55
28 – 36
Formulários
Wear-resistant coatings, turbine components
Componentes de válvulas, matrizes de extrusão
Welding 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.
