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 | Skład (%) |
|---|---|
| Nikiel (Ni) | 58,0 min |
| Chrom (Cr) | 20,0-23,0 |
| Molibden (Mo) | 8.0-10.0 |
| Żelazo (Fe) | 5,0 maks |
| Niob (Nb) | 3.15-4.15 |
| Cobalt (Co) | 1,0 maks |
| Mangan (Mn) | 00,50 maks |
| Krzem (Si) | 00,50 maks |
| Węgiel (C) | 0.10 max |
| Fosfor (P) | 00,015 maks |
| Siarka (S) | 00,015 maks |
| Aluminium (Al) | 0.40 max |
| Tytan (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:
| Nieruchomość | Wartość |
|---|---|
| Wytrzymałość na rozciąganie | 760 MPa (110 ksi) min |
| Granica plastyczności (przesunięcie 0,2%) | 345 MPa (50 ksi) min |
| Wydłużenie | 30% min |
| Twardość (Brinell) | 150-240 (varies with heat treatment) |
| Gęstość | 8.44 g/cm³ |
| Fatigue Life | Enhanced LCF performance |
Wydajność w różnych temperaturach
INCONEL® alloy 625LCF exhibits robust performance across a wide range of temperatures:
| Zakres temperatury | Wydajność |
|---|---|
| Temperatura pokojowa | Wysoka wytrzymałość i odporność na korozję |
| Elevated Temperatures (up to 980°C / 1800°F) | Retains mechanical properties |
| Temperatury kriogeniczne | Zachowuje plastyczność i wytrzymałość |
Odpowiednie stopnie w różnych krajach
INCONEL® alloy 625LCF is identified by similar grades as INCONEL® alloy 625 globally:
| Kraj/region | Stopień |
|---|---|
| USA | UNS N06626 (625LCF) |
| Niemcy | 2.4856 |
| Francja | NC22DNB4M (625LCF) |
| Wielka Brytania | NA21 |
| Japonia | NCF 625LCF |
| Chiny | GH3625 |
Standardowe formy, rozmiary i standardy produkcyjne
Formy i rozmiary
INCONEL® alloy 625LCF is available in various forms and sizes to meet diverse industrial needs:
| Formularz | Zakres rozmiarów |
|---|---|
| Pościel | Grubość: 0,1 mm – 50 mm |
| Talerze | Grubość: 0,3 mm – 100 mm |
| Słupy | Średnica: 5 mm – 300 mm |
| Drut | Średnica: 0,1 mm – 10 mm |
| Rury | Średnica zewnętrzna: 6 mm – 200 mm |
| Kobza | Średnica zewnętrzna: 10 mm – 300 mm |
| Armatura | Różne konfiguracje zgodnie ze standardami |
| Odkuwki | Różne kształty i rozmiary zgodnie ze standardami |
Standardy produkcyjne
INCONEL® alloy 625LCF adheres to international production standards:
| Standard | Opis |
|---|---|
| ASTM B443 | Sheets, plates, and strips |
| ASTM B446 | Bars, rods, and wires |
| ASTM B444 | Seamless pipes and tubes |
| ASTM B704 | Welded tubes |
| ASTM B564 | Odkuwki |
| ASTM B366 | Armatura |
Industry Applications of INCONEL® Alloy 625LCF
INCONEL® alloy 625LCF is utilized in critical applications where fatigue resistance is essential:
- Lotnictwo: Engine components, turbine discs, and seals.
- Wytwarzanie energii: Gas turbine components, steam turbine blades.
- Przetwarzanie chemiczne: Equipment handling corrosive chemicals under cyclic loading.
- Morski: Fasteners and springs in marine environments.
- Olej i gaz: Downhole tools, springs, and valve components.
Advantages of INCONEL® Alloy 625LCF
- Enhanced Fatigue Resistance: Improved performance in low-cycle fatigue applications.
- Wysoka wytrzymałość: Retains strength and toughness at elevated temperatures.
- Odporność na korozję: Resistant to oxidation and chloride-induced stress corrosion cracking.
- Fabricability: Easily machined, welded, and formed into complex shapes.
Wniosek
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.
W celu uzyskania szczegółowych specyfikacji technicznych i dalszych zapytań zaleca się odwoływanie się do kart katalogowych konkretnych produktów i konsultację z producentami.
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.