INCONEL® Alloy 625LCF: Comprehensive Product Introduction
Introduction to INCONEL® Alloy 625LCF
INCONEL® alloy 625LCF is a specialized version of INCONEL® alloy 625, tailored for enhanced fatigue resistance, particularly in low-cycle fatigue (LCF) applications. This nickel-based superalloy retains the excellent strength, corrosion resistance, and versatility of standard alloy 625 while offering superior performance under cyclic loading conditions. This article provides a detailed overview of INCONEL® alloy 625LCF, covering its chemical composition, mechanical properties, performance at different temperatures, corresponding grades, industry applications, available forms, sizes, and production standards across various countries.
Chemical Composition of INCONEL® Alloy 625LCF
INCONEL® alloy 625LCF maintains a similar chemical composition to alloy 625, optimized for enhanced fatigue life:
| Element | Komposition (%) |
|---|---|
| Nickel (Ni) | 58,0 Min |
| Chrom (Cr) | 20.0-23.0 |
| Molybdän (Mo) | 8,0-10,0 |
| Eisen (Fe) | 5,0 max |
| Niob (Nb) | 3.15-4.15 |
| Kobalt (Co) | 1,0 max |
| Mangan (Mn) | 0.50 max |
| Silizium (Si) | 0.50 max |
| Kohlenstoff (C) | 0.10 max |
| Phosphor (P) | 0.015 max |
| Schwefel (S) | 0.015 max |
| Aluminium (Al) | 0.40 max |
| Titan (Ti) | 0.40 max |
Mechanical Properties of INCONEL® Alloy 625LCF
INCONEL® alloy 625LCF offers excellent mechanical properties suitable for high-stress and cyclic loading applications:
| Eigentum | Wert |
|---|---|
| Zugfestigkeit | 760 MPa (110 ksi) min |
| Streckgrenze (0,2 % Offset) | 345 MPa (50 ksi) min |
| Verlängerung | 30 Minuten |
| Härte (Brinell) | 150–240 (variiert je nach Wärmebehandlung) |
| Dichte | 8,44 g/cm³ |
| Fatigue Life | Enhanced LCF performance |
Leistung bei verschiedenen Temperaturen
INCONEL® alloy 625LCF exhibits robust performance across a wide range of temperatures:
| Temperaturbereich | Leistung |
|---|---|
| Zimmertemperatur | Hohe Festigkeit und Korrosionsbeständigkeit |
| Elevated Temperatures (up to 980°C / 1800°F) | Behält die mechanischen Eigenschaften |
| Kryogene Temperaturen | Behält Duktilität und Zähigkeit |
Entsprechende Noten in verschiedenen Ländern
INCONEL® alloy 625LCF is identified by similar grades as INCONEL® alloy 625 globally:
| Land/Region | Grad |
|---|---|
| USA | UNS N06626 (625LCF) |
| Deutschland | 2.4856 |
| Frankreich | NC22DNB4M (625LCF) |
| Vereinigtes Königreich | NA21 |
| Japan | NCF 625LCF |
| China | GH3625 |
Standardformen, Größen und Produktionsstandards
Formen und Größen
INCONEL® alloy 625LCF is available in various forms and sizes to meet diverse industrial needs:
| Bilden | Größenbereich |
|---|---|
| Blätter | Dicke: 0,1 mm – 50 mm |
| Platten | Dicke: 0,3 mm – 100 mm |
| Riegel | Durchmesser: 5 mm – 300 mm |
| Draht | Durchmesser: 0,1 mm – 10 mm |
| Röhren | Außendurchmesser: 6 mm – 200 mm |
| Rohre | Außendurchmesser: 10 mm – 300 mm |
| Beschläge | Verschiedene Konfigurationen gemäß Standards |
| Schmiedestücke | Verschiedene Formen und Größen gemäß den Standards |
Produktionsstandards
INCONEL® alloy 625LCF adheres to international production standards:
| Standard | Beschreibung |
|---|---|
| ASTM B443 | Bleche, Platten und Streifen |
| ASTM B446 | Stangen, Stäbe und Drähte |
| ASTM B444 | Nahtlose Rohre und Röhren |
| ASTM B704 | Geschweißte Rohre |
| ASTM B564 | Schmiedestücke |
| ASTM B366 | Beschläge |
Industry Applications of INCONEL® Alloy 625LCF
INCONEL® alloy 625LCF is utilized in critical applications where fatigue resistance is essential:
- Luft- und Raumfahrt: Engine components, turbine discs, and seals.
- Energieerzeugung: Gas turbine components, steam turbine blades.
- Chemische Verarbeitung: Equipment handling corrosive chemicals under cyclic loading.
- Marine: Fasteners and springs in marine environments.
- Öl und Gas: Downhole tools, springs, and valve components.
Advantages of INCONEL® Alloy 625LCF
- Enhanced Fatigue Resistance: Improved performance in low-cycle fatigue applications.
- Hohe Festigkeit: Retains strength and toughness at elevated temperatures.
- Korrosionsbeständigkeit: Resistant to oxidation and chloride-induced stress corrosion cracking.
- Herstellbarkeit: Leicht zu bearbeiten, zu schweißen und in komplexe Formen zu bringen.
Abschluss
INCONEL® alloy 625LCF represents a significant advancement over standard alloy 625, offering enhanced fatigue resistance while maintaining exceptional strength and corrosion resistance. Its wide availability in various forms, adherence to international standards, and proven performance in critical industries make it a preferred choice for applications demanding reliability and durability under cyclic loading conditions.
Für detaillierte technische Spezifikationen und weitere Anfragen wird die Bezugnahme auf spezifische Produktdatenblätter und die Rücksprache mit den Herstellern empfohlen.
This comprehensive introduction and detailed data sheet provide a thorough overview of INCONEL® alloy 625LCF, emphasizing its chemical composition, mechanical properties, performance characteristics at different temperatures, applications, and advantages in demanding industrial environments across different countries.