Limite d'élasticité (compensation de 0,2 %), ksi (MPa)
55 (380) min
Allongement (% en 2 pouces)
40 minutes
Hardness, Brinell (HB)
255 max
Performances à différentes températures
Plage de température
Performance
Température ambiante
Excellent mechanical properties and corrosion resistance.
Elevated Temperatures (up to 1000°F / 538°C)
Maintains strength and oxidation resistance.
Low Temperatures
Retains toughness and ductility down to cryogenic temperatures.
Applications industrielles
Secteur industriel
Applications
Pétrole et Gaz
Downhole equipment, subsea pipelines.
Pétrochimique
Heat exchangers, chemical processing equipment.
Marin
Offshore platforms, seawater handling systems.
Production d'électricité
Condensers, boiler components.
Shape, Size, and Production Standards
Formulaire de produit
Formes disponibles
Tailles disponibles
Normes de production
Feuilles
Plaques, Feuilles
Various thicknesses
ASTM B688, ASTM B709
Barres
Round bars, hexagonal bars
Diameter range
ASTM B805
Tubes/Tuyaux
Seamless tubes, welded pipes
Various dimensions
ASTM B690, ASTM B775
Normes et notes correspondantes
Pays/Région
Standard/Grade
USA
UNS S31277
Europe
1.4529
Allemagne
X1NiCrMoCuN20-18-7
France
Z1NCDU20.18.06Az
Welding, Processing, Polishing, Heat Treatment
Processus
Détails
Soudage
Excellent weldability using TIG, MIG methods.
Processing
Cold and hot forming processes. Machinable with standard methods.
Polissage
Achieves smooth finishes suitable for sanitary applications.
Traitement thermique
Solution annealing at 2100°F (1150°C) followed by rapid quenching.
Cold Processing, Advantages, and Disadvantages
Aspect
Détails
Cold Processing
Excellent formability and cold workability.
Avantages
High resistance to chloride-induced stress corrosion cracking. Good mechanical properties over a wide temperature range.
Désavantages
Higher initial cost compared to standard stainless steels. Requires expertise in welding to prevent sensitization.
Produits similaires
Product Name
Comparaison
Alloy 926 (UNS N08926)
Higher molybdenum content, similar applications in aggressive environments.
Alloy 254 SMO (UNS S31254)
Higher chromium and molybdenum content, excellent resistance to pitting and crevice corrosion.
Comparison of Similar Products
Propriété/caractéristique
INCOLOY Alloy 27-7MO (UNS S31277)
Alloy 926 (UNS N08926)
Alloy 254 SMO (UNS S31254)
Teneur en nickel (%)
26.0 – 28.0
24.0 – 26.0
18.0 – 20.0
Teneur en chrome (%)
26.0 – 28.0
19.0 – 21.0
19.5 – 20.5
Teneur en molybdène (%)
6.0 – 7.0
6.0 – 7.0
6.0 – 6.5
Copper Content (%)
1,5 – 2,5
1,5 – 3,0
0.5 – 1.0
Nitrogen Content (%)
0.25 – 0.30
0.15 – 0.25
0.18 – 0.22
Tensile Strength (ksi)
115 min
100 min
100 min
Yield Strength (ksi)
55 min
45 min
45 min
Allongement (%)
40 minutes
40 minutes
35 min
Resistance to SCC
Haut
Haut
Haut
Typical Applications
Oil and gas, petrochemical, marine
Chemical processing, marine
Chemical processing, marine
This structured presentation provides a detailed overview of INCOLOY Alloy 27-7MO (UNS S31277), encompassing its chemical composition, mechanical properties, performance characteristics at different temperatures, industry applications, available shapes and sizes, production standards, welding and processing capabilities, as well as the advantages, disadvantages, and comparable products. Each section is organized into tables to ensure clarity and accessibility of technical specifications and comparisons.
