MONEL® alloy 404 is a nickel-copper alloy renowned for its excellent corrosion resistance and high strength, particularly in marine environments. This product introduction covers its chemical composition, mechanical properties, performance across different temperatures, industry applications, shapes, sizes, production standards, welding, machining, polishing, heat treatment, cold working, advantages and disadvantages, and similar products.
Composição química
Elemento
Composição (%)
Níquel (Ni)
52.5 min
Cobre
27.0-33.0
Ferro (Fe)
1,0 máx.
Manganês (Mn)
1.5 max
Silício (Si)
00,5 máx.
Carbono (C)
0.3 max
Enxofre (S)
00,02 máx.
Propriedades mecânicas
Propriedade
Valor
Resistência à tração (recozida)
450 MPa (65 ksi) min
Resistência ao rendimento (recozido)
170 MPa (25 ksi) min
Elongation (Annealed)
40% min
Hardness (Annealed)
70 HRB max
Desempenho em diferentes temperaturas
Faixa de temperatura
Desempenho
Temperatura do quarto
Excellent corrosion resistance, good mechanical properties
Elevated Temperatures (up to 300°C / 570°F)
Maintains strength and toughness
Temperaturas Criogênicas
Mantém ductilidade e tenacidade
Aplicações Industriais
MONEL® alloy 404 finds applications in various industries for its corrosion resistance and mechanical properties:
Indústria
Formulários
Marinho
Shipbuilding, seawater piping
Processamento Químico
Sulfuric acid production, chemical vessels
Aeroespacial
Aircraft components, fuel tanks
Oil & Gas
Valve trim, pump shafts
Formas, tamanhos e padrões de produção
Formas e tamanhos
Forma
Faixa de tamanho
Folhas
Thickness: 0.5 mm – 3 mm
Pratos
Thickness: 1 mm – 50 mm
Barras
Diameter: 6 mm – 100 mm
Tubos
OD: 6 mm – 500 mm
Tubos
DE: 6 mm – 300 mm
Padrões de produção e classes correspondentes
País
Padrão
Nota correspondente
Estados Unidos
ASTM B127, ASTM B164
UNS N04404
Alemanha
DIN 17750, DIN 17751
2.4867
França
AFNOR NFM 87-310
–
Reino Unido
BS 3072, BS 3073
NA12
Japão
JIS NW 4404
–
China
GB/T 12771, GB/T 12770
–
Soldagem, Usinagem, Polimento, Tratamento Térmico e Trabalho a Frio
Processo
Detalhes
Soldagem
Welds with matching composition filler metals. Suitable methods include gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW).
Usinagem
Requires sharp tools and proper cooling. Carbide tools are recommended for turning and milling operations.
Polimento
Achieves good surface finish with mechanical methods like buffing and polishing wheels. Chemical polishing is also effective.
Tratamento térmico
Annealing at 870°C (1600°F) followed by water quenching improves ductility and removes residual stresses.
Trabalho a frio
Can be cold worked to various degrees for shaping. Cold working increases strength and hardness.
Vantagens e desvantagens
Aspecto
Vantagens
Desvantagens
Vantagens
Excelente resistência à corrosão
Disponibilidade limitada em certos formatos
High strength and toughness
A usinagem pode ser um desafio
Good ductility and toughness
Relatively high cost compared to some alternatives
Suitable for marine and chemical processing applications
Produtos Similares
Grau de material
Comparação
Alloy K-500
Similar composition with added aluminum and titanium for increased strength and hardness.
Conclusão
MONEL® alloy 404 is a versatile nickel-copper alloy ideal for applications requiring corrosion resistance and high strength in harsh environments. Its combination of mechanical properties and resistance to marine and chemical environments makes it suitable for a wide range of industries. Engineers and designers seeking a durable material with excellent performance characteristics can rely on MONEL® alloy 404 for dependable solutions.
For detailed technical specifications and customized solutions, consulting with material suppliers and referencing specific product data sheets is recommended.lting with material suppliers and referencing specific product data sheets is recommended.
