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.
Composition chimique
Élément
Composition (%)
Nickel (Ni)
52.5 min
Cuivre
27.0-33.0
Fer (Fe)
1,0 maximum
Manganèse (Mn)
1,5 maximum
Silicium (Si)
00,5 maximum
Carbone (C)
0.3 max
Soufre (S)
00,02 maximum
Propriétés mécaniques
Propriété
Valeur
Tensile Strength (Annealed)
450 MPa (65 ksi) min
Yield Strength (Annealed)
170 MPa (25 ksi) min
Elongation (Annealed)
40% min
Hardness (Annealed)
70 HRB max
Performances à différentes températures
Plage de température
Performance
Température ambiante
Excellent corrosion resistance, good mechanical properties
Elevated Temperatures (up to 300°C / 570°F)
Maintains strength and toughness
Températures cryogéniques
Conserve la ductilité et la ténacité
Applications industrielles
MONEL® alloy 404 finds applications in various industries for its corrosion resistance and mechanical properties:
Industrie
Applications
Marin
Shipbuilding, seawater piping
Traitement chimique
Sulfuric acid production, chemical vessels
Aérospatial
Aircraft components, fuel tanks
Oil & Gas
Valve trim, pump shafts
Formes, tailles et normes de production
Formes et tailles
Formulaire
Gamme de tailles
Feuilles
Épaisseur : 0,5 mm – 3 mm
Assiettes
Épaisseur : 1 mm – 50 mm
Barres
Diamètre : 6 mm – 100 mm
Tuyaux
Diamètre extérieur : 6 mm – 500 mm
Tubes
Diamètre extérieur : 6 mm – 300 mm
Normes de production et qualités correspondantes
Pays
Standard
Note correspondante
États-Unis
ASTM B127, ASTM B164
UNS N04404
Allemagne
DIN 17750, DIN 17751
2.4867
France
AFNOR NFM 87-310
–
Royaume-Uni
BS 3072, BS 3073
NA12
Japon
JIS NW 4404
–
Chine
GB/T 12771, GB/T 12770
–
Soudage, usinage, polissage, traitement thermique et travail à froid
Processus
Détails
Soudage
Welds with matching composition filler metals. Suitable methods include gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW).
Usinage
Requires sharp tools and proper cooling. Carbide tools are recommended for turning and milling operations.
Polissage
Permet d'obtenir une bonne finition de surface grâce à des méthodes mécaniques telles que le polissage et les meules. Le polissage chimique est également efficace.
Traitement thermique
Annealing at 870°C (1600°F) followed by water quenching improves ductility and removes residual stresses.
Fonctionnement à froid
Can be cold worked to various degrees for shaping. Cold working increases strength and hardness.
Avantages et inconvénients
Aspect
Avantages
Désavantages
Avantages
Excellent corrosion resistance
Disponibilité limitée sous certaines formes
Haute résistance et ténacité
L'usinage peut être difficile
Good ductility and toughness
Relatively high cost compared to some alternatives
Suitable for marine and chemical processing applications
Produits similaires
Qualité du matériau
Comparaison
Alloy K-500
Similar composition with added aluminum and titanium for increased strength and hardness.
Conclusion
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.
