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:
| 元素 | 作品 （％） |
|---|---|
| 鎳 (Ni) | 58.0 分鐘 |
| 鉻 (Cr) | 20.0-23.0 |
| 鉬（Mo） | 8.0-10.0 |
| 鐵 (Fe) | 最大 5.0 |
| 鈮 (Nb) | 3.15-4.15 |
| 鈷 (Co) | 最大1.0 |
| 錳（Mn） | 0最大.50 |
| 矽（Si） | 0最大.50 |
| 碳（C） | 0最大.10 |
| 磷（P） | 0最大.015 |
| 硫（S） | 0最大.015 |
| 鋁 (Al) | 0最大.40 |
| 鈦（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:
| 財產 | 價值 |
|---|---|
| 抗拉強度 | 最小 760 兆帕 (110 ksi) |
| 屈服強度（0.2% 偏移） | 最小 345 兆帕 (50 ksi) |
| 伸長 | 30分鐘 |
| 硬度 （布氏硬度） | 150-240（因熱處理而異） |
| 密度 | 8.44克/立方厘米 |
| Fatigue Life | Enhanced LCF performance |
不同溫度下的性能
INCONEL® alloy 625LCF exhibits robust performance across a wide range of temperatures:
| 溫度範圍 | 表現 |
|---|---|
| 室內溫度 | 高強度、耐腐蝕 |
| Elevated Temperatures (up to 980°C / 1800°F) | 保留機械性質 |
| 低溫 | 保持延展性和韌性 |
不同國家對應的年級
INCONEL® alloy 625LCF is identified by similar grades as INCONEL® alloy 625 globally:
| 國家/地區 | 年級 |
|---|---|
| 美國 | UNS N06626 (625LCF) |
| 德國 | 2.4856 |
| 法國 | NC22DNB4M (625LCF) |
| 英國 | NA21 |
| 日本 | NCF 625LCF |
| 中國 | GH3625 |
標準形式、尺寸和生產標準
形狀和尺寸
INCONEL® alloy 625LCF is available in various forms and sizes to meet diverse industrial needs:
| 形式 | 尺寸範圍 |
|---|---|
| 床單 | 厚度：0.1 毫米 – 50 毫米 |
| 盤子 | 厚度：0.3 毫米 – 100 毫米 |
| 酒吧 | 直徑：5毫米 – 300毫米 |
| 金屬絲 | 直徑：0.1 毫米 – 10 毫米 |
| 管 | 外徑：6 毫米 – 200 毫米 |
| 管道 | 外徑：10毫米 – 300毫米 |
| 配件 | 多種配置符合標準 |
| 鍛件 | 符合標準的各種形狀和尺寸 |
生產標準
INCONEL® alloy 625LCF adheres to international production standards:
| 標準 | 描述 |
|---|---|
| ASTM B443 | 片材、板材和帶材 |
| ASTM B446 | 棒材、棒材和線材 |
| ASTM B444 | 無縫管材 |
| ASTM B704 | 焊接管 |
| ASTM B564 | 鍛件 |
| ASTM B366 | 配件 |
Industry Applications of INCONEL® Alloy 625LCF
INCONEL® alloy 625LCF is utilized in critical applications where fatigue resistance is essential:
- 航太: Engine components, turbine discs, and seals.
- 發電: Gas turbine components, steam turbine blades.
- 化學加工: Equipment handling corrosive chemicals under cyclic loading.
- 海洋: Fasteners and springs in marine environments.
- 油和氣: 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.
- 耐腐蝕性能: Resistant to oxidation and chloride-induced stress corrosion cracking.
- 可加工性：易於加工、焊接並形成複雜的形狀。
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.
如需詳細技術規格和進一步詢問，建議參考具體產品資料表並諮詢製造商。
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.