UDIMAR® Alloy 300 (UNS K93120) Product Introduction
UDIMAR® alloy 300, designated as UNS K93120, is a high-strength nickel-based superalloy known for its exceptional mechanical properties and corrosion resistance. This article provides a comprehensive introduction to UDIMAR® alloy 300, covering its chemical composition, mechanical properties, performance at different temperatures, industry applications, shapes and sizes, production standards, welding and processing capabilities, advantages and disadvantages, and a comparison with similar alloys.
Composição química
UDIMAR® alloy 300 is primarily composed of nickel with significant additions of cobalt, chromium, molybdenum, and other elements to enhance its mechanical and thermal properties:
| Elemento | Composição (%) |
|---|---|
| Níquel (Ni) | 50,0 – 60,0 |
| Cobalto (Co) | 18.0 – 22.0 |
| Cromo (Cr) | 12.0 – 15.0 |
| Molibdênio (Mo) | 2,0 – 3,0 |
| Ferro (Fe) | 5.0 – 8.0 |
| Titânio (Ti) | 1.0 – 2.0 |
| Alumínio (Al) | 00,1 – 0,5 |
| Carbono (C) | 00,05 máx. |
Propriedades mecânicas
UDIMAR® alloy 300 exhibits excellent mechanical properties suitable for high-strength applications:
| Propriedade | Valor |
|---|---|
| Resistência à tração, ksi (MPa) | 170 – 200 (1172 – 1379) |
| Força de rendimento (compensação de 0,2%), ksi (MPa) | 140 – 170 (965 – 1172) |
| Alongamento (% em 2 polegadas) | 15 – 25 |
| Dureza, Rockwell C (HRC) | 35 – 45 |
Características de desempenho
UDIMAR® alloy 300 offers several performance advantages:
- High-Strength: Provides excellent strength properties suitable for applications requiring high mechanical performance.
- Resistência à corrosão: Exhibits good resistance to corrosion and oxidation in various environments, including high-temperature applications.
- Heat Resistance: Maintains mechanical properties at elevated temperatures up to 800°C (1472°F), making it suitable for aerospace and industrial gas turbine applications.
Aplicações Industriais
UDIMAR® alloy 300 is used in various industries where high-strength and corrosion resistance are critical:
| Setor Industrial | Formulários |
|---|---|
| Aeroespacial | Turbine blades, discs, shafts, and casings for aerospace engines. |
| Geração de energia | Gas turbine components, including rotor blades, combustion chambers, and heat exchangers. |
| Processamento Químico | Reactor vessels, valves, and pipes handling corrosive chemicals at high temperatures. |
Formas e tamanhos
UDIMAR® alloy 300 is available in various forms and sizes to meet specific application requirements:
- Formulários: Chapas, chapas, barras, peças forjadas e arames.
- Tamanhos: Espessuras variando de 0,5 mm a 100 mm para chapas e diâmetros variando de 1 mm a 300 mm para barras redondas.
Padrões de produção
UDIMAR® alloy 300 conforms to international production standards ensuring quality and reliability:
| Formulário de produto | Formas disponíveis | Tamanhos disponíveis | Padrões de produção |
|---|---|---|---|
| Placas/Folhas | Lençóis, Pratos | Espessura: 0,5 mm – 100 mm | ASTM B637, AMS 5764 |
| Barras/hastes | Barras redondas, barras quadradas | Diâmetro: 1mm – 300mm | ASTM B637, AMS 5764 |
| Forjados | Blocos, discos, anéis | Tamanho: Personalizado | ASTM B637, AMS 5764 |
Soldagem e Processamento
UDIMAR® alloy 300 offers good weldability and processing characteristics:
- Soldagem: Pode ser soldado usando métodos como TIG, MIG e soldagem por resistência. O pré-aquecimento e o tratamento térmico pós-soldagem podem ser necessários para manter as propriedades.
- Usinabilidade: Geralmente usinado na condição de recozimento em solução usando ferramentas de metal duro e fluidos de corte apropriados.
Vantagens e desvantagens
| Aspecto | Detalhes |
|---|---|
| Vantagens | High strength, good corrosion and oxidation resistance, reliable performance at high temperatures, and availability in various forms and sizes. |
| Desvantagens | Custo mais elevado em comparação com ligas de níquel padrão, requer processamento e manuseio especializado devido à sua alta resistência e elementos de liga. |
Comparação com ligas semelhantes
UDIMAR® alloy 300 (UNS K93120) is often compared with other high-strength nickel-based superalloys such as UDIMET® alloy 720 and UDIMET® alloy R41. Here’s a brief comparison:
| Tipo/propriedade da liga | UDIMAR® liga 300 | UDIMET® liga 720 | Liga UDIMET® R41 |
|---|---|---|---|
| Composição química | High nickel, cobalt, chromium, molybdenum for high-strength properties. | Alto teor de níquel, cobalto, cromo, tungstênio, molibdênio para resistência a altas temperaturas. | Alto teor de níquel, cobalto, cromo, tungstênio, molibdênio para resistência a altas temperaturas. |
| Propriedades mecânicas | Higher tensile and yield strength, good toughness, and fatigue resistance. | Higher tensile and yield strength compared to UDIMAR® alloy 300, excellent oxidation resistance. | Higher tensile and yield strength compared to UDIMET® alloy 720, superior creep resistance. |
| Formulários | Aerospace engine components, gas turbines, and industrial applications requiring high strength and corrosion resistance. | Turbinas a gás, componentes aeroespaciais que exigem resistência a altas temperaturas e resistência à oxidação. | Turbinas a gás, componentes aeroespaciais que exigem resistência a altas temperaturas e resistência à oxidação. |
This detailed article introduces UDIMAR® alloy 300 (UNS K93120), highlighting its chemical composition, mechanical properties, performance characteristics, industry applications, available forms and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and a comparison with similar alloys. Engineers and professionals seeking a robust, high-strength nickel-based superalloy for critical applications in aerospace, power generation, and chemical processing will find UDIMAR® alloy 300 well-suited for use in demanding environments.