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:
| 要素 | 構成 （％） |
|---|---|
| ニッケル(Ni) | 58.0分 |
| クロム(Cr) | 20.0～23.0 |
| モリブデン(Mo) | 8.0～10.0 |
| 鉄(Fe) | 最大5.0 |
| ニオブ(Nb) | 3.15-4.15 |
| コバルト(Co) | 最大1.0 |
| マンガン(Mn) | 0最大.50 |
| シリコン（Si） | 0最大.50 |
| カーボン(C) | 0最大.10 |
| リン(P) | 0最大.015 |
| 硫黄(S) | 0最大.015 |
| アルミニウム(Al) | 0最大.40 |
| チタン(Ti) | 0最大.40 |
Mechanical Properties of INCONEL® Alloy 625LCF
INCONEL® alloy 625LCF offers excellent mechanical properties suitable for high-stress and cyclic loading applications:
| 財産 | 価値 |
|---|---|
| 抗張力 | 760 MPa (110 ksi) 分 |
| 耐力 (0.2% オフセット) | 345 MPa (50 ksi) 分 |
| 伸長 | 30分 |
| 硬度 (ブリネル) | 150-240 (varies with heat treatment) |
| 密度 | 8.44 g/cm³ |
| Fatigue Life | Enhanced LCF performance |
さまざまな温度でのパフォーマンス
INCONEL® alloy 625LCF exhibits robust performance across a wide range of temperatures:
| 温度範囲 | パフォーマンス |
|---|---|
| 室温 | 高い強度と耐食性 |
| Elevated Temperatures (up to 980°C / 1800°F) | Retains mechanical properties |
| 極低温 | 延性と靭性を維持します |
各国の対応グレード
INCONEL® alloy 625LCF is identified by similar grades as INCONEL® alloy 625 globally:
| 国/地域 | 学年 |
|---|---|
| アメリカ合衆国 | UNS N06626 (625LCF) |
| ドイツ | 2.4856 |
| フランス | NC22DNB4M (625LCF) |
| イギリス | NA21 |
| 日本 | NCF 625LCF |
| 中国 | GH3625 |
標準形状・サイズ・製造規格
形状とサイズ
INCONEL® alloy 625LCF is available in various forms and sizes to meet diverse industrial needs:
| 形状 | サイズ範囲 |
|---|---|
| シート | 厚さ：0.1mm～50mm |
| プレート | 厚さ：0.3mm～100mm |
| バー | 直径：5mm～300mm |
| ワイヤー | 直径：0.1mm～10mm |
| チューブ | 外径：6mm～200mm |
| パイプ | 外径：10mm～300mm |
| 継手 | 規格に準拠したさまざまな構成 |
| 鍛造品 | 規格に応じたさまざまな形状とサイズ |
製造基準
INCONEL® alloy 625LCF adheres to international production standards:
| 標準 | 説明 |
|---|---|
| ASTM B443 | シート、プレート、ストリップ |
| ASTM B446 | 棒、棒、ワイヤー |
| ASTM B444 | シームレスパイプおよびチューブ |
| ASTM B704 | Welded tubes |
| ASTM B564 | 鍛造品 |
| ASTM B366 | 継手 |
Industry Applications of INCONEL® Alloy 625LCF
INCONEL® alloy 625LCF is utilized in critical applications where fatigue resistance is essential:
- 航空宇宙: Engine components, turbine discs, and seals.
- 発電: Gas turbine components, steam turbine blades.
- 化学処理: Equipment handling corrosive chemicals under cyclic loading.
- マリン: Fasteners and springs in marine environments.
- オイルとガス: Downhole tools, springs, and valve components.
Advantages of INCONEL® Alloy 625LCF
- Enhanced Fatigue Resistance: Improved performance in low-cycle fatigue applications.
- 高強度: Retains strength and toughness at elevated temperatures.
- 耐食性: Resistant to oxidation and chloride-induced stress corrosion cracking.
- 加工性: Easily machined, welded, and formed into complex shapes.
結論
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.
詳細な技術仕様や詳細な問い合わせについては、特定の製品データシートを参照し、メーカーに相談することをお勧めします。
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.