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.
Composizione chimica
Elemento
Composizione (%)
Nichel (Ni)
52.5 min
Rame
27.0-33.0
Ferro (Fe)
1,0 massimo
Manganese (Mn)
1.5 max
Silicon (Si)
0.5 max
Carbonio (C)
0.3 max
Zolfo (S)
00,02 massimo
Proprietà meccaniche
Proprietà
Valore
Resistenza alla trazione (ricotto)
450 MPa (65 ksi) min
Carico di snervamento (ricotto)
170 MPa (25 ksi) min
Elongation (Annealed)
40% min
Hardness (Annealed)
70 HRB max
Prestazioni a diverse temperature
Intervallo di temperatura
Prestazione
Temperatura ambiente
Excellent corrosion resistance, good mechanical properties
Elevated Temperatures (up to 300°C / 570°F)
Maintains strength and toughness
Temperature criogeniche
Retains ductility and toughness
Applicazioni industriali
MONEL® alloy 404 finds applications in various industries for its corrosion resistance and mechanical properties:
Industry
Applicazioni
Marino
Shipbuilding, seawater piping
Elaborazione chimica
Sulfuric acid production, chemical vessels
Aerospaziale
Aircraft components, fuel tanks
Oil & Gas
Valve trim, pump shafts
Shapes, Sizes, and Production Standards
Forme e dimensioni
Modulo
Gamma di dimensioni
Fogli
Thickness: 0.5 mm – 3 mm
Piatti
Thickness: 1 mm – 50 mm
Barre
Diameter: 6 mm – 100 mm
Tubi
OD: 6 mm – 500 mm
Tubi
Diametro esterno: 6 mm – 300 mm
Production Standards and Corresponding Grades
Country
Standard
Corresponding Grade
United States
ASTM B127, ASTM B164
UNS N04404
Germania
DIN 17750, DIN 17751
2.4867
Francia
AFNOR NFM 87-310
–
United Kingdom
BS 3072, BS 3073
NA12
Giappone
JIS NW 4404
–
Cina
GB/T 12771, GB/T 12770
–
Welding, Machining, Polishing, Heat Treatment, and Cold Working
Process
Dettagli
Saldatura
Welds with matching composition filler metals. Suitable methods include gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW).
Lavorazione
Requires sharp tools and proper cooling. Carbide tools are recommended for turning and milling operations.
Lucidatura
Achieves good surface finish with mechanical methods like buffing and polishing wheels. Chemical polishing is also effective.
Trattamento termico
Annealing at 870°C (1600°F) followed by water quenching improves ductility and removes residual stresses.
Lavoro a freddo
Can be cold worked to various degrees for shaping. Cold working increases strength and hardness.
Vantaggi e svantaggi
Aspetto
Vantaggi
Svantaggi
Vantaggi
Eccellente resistenza alla corrosione
Limited availability in certain forms
High strength and toughness
Machining can be challenging
Good ductility and toughness
Relatively high cost compared to some alternatives
Suitable for marine and chemical processing applications
Similar Products
Material Grade
Comparison
Alloy K-500
Similar composition with added aluminum and titanium for increased strength and hardness.
Conclusione
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.
