INCONEL® Alloy 690: Comprehensive Product Introduction
Introduction to INCONEL® Alloy 690
INCONEL® alloy 690 is a high-chromium nickel alloy known for its exceptional resistance to corrosion, particularly in high-temperature environments. Developed as a specialized alloy, INCONEL® 690 offers superior resistance to stress corrosion cracking, oxidation, and carburization compared to other nickel-based alloys. This article provides a detailed overview of INCONEL® alloy 690, 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 690
INCONEL® alloy 690 is composed of specific elements to achieve its superior corrosion-resistant properties:
| عنصر | تعبير (٪) |
|---|---|
| النيكل (ني) | 58.0 min |
| الكروم (الكروم) | 27.0-31.0 |
| الحديد (الحديد) | 7.0-11.0 |
| الموليبدينوم (مو) | 0.5 كحد أقصى |
| المنغنيز (من) | 0.5 كحد أقصى |
| السيليكون (سي) | 0.5 كحد أقصى |
| الكربون (ج) | 0.05 max |
| الكبريت (S) | 0.015 كحد أقصى |
| الفوسفور (ف) | 0.015 كحد أقصى |
Mechanical Properties of INCONEL® Alloy 690
INCONEL® alloy 690 exhibits robust mechanical properties suitable for high-temperature applications:
| ملكية | قيمة |
|---|---|
| قوة الشد | 760 ميجا باسكال (110 كيلو باسكال) دقيقة |
| قوة الخضوع (إزاحة 0.2%) | 345 MPa (50 ksi) min |
| استطالة | 30% دقيقة |
| صلابة (برينل) | 200-250 (varies with heat treatment) |
| كثافة | 8.19 g/cm³ |
الأداء في درجات حرارة مختلفة
INCONEL® alloy 690 maintains its corrosion resistance and mechanical properties across a wide range of temperatures:
| Temperature Range | Performance |
|---|---|
| Room Temperature | High resistance to corrosion and mechanical strength |
| Elevated Temperatures (up to 1000°C / 1832°F) | Retains strength and oxidation resistance |
| Cryogenic Temperatures | Maintains ductility and toughness |
الدرجات المقابلة في مختلف البلدان
INCONEL® alloy 690 is recognized by various grades in different countries and regions:
| البلد/المنطقة | درجة |
|---|---|
| الولايات المتحدة الأمريكية | UNS N06690 |
| ألمانيا | 2.4642 |
| فرنسا | - |
| UK | - |
| Japan | - |
| China | - |
النماذج والأحجام القياسية ومعايير الإنتاج
الأشكال والأحجام
INCONEL® alloy 690 is available in various forms and sizes to meet industrial requirements:
| استمارة | نطاق الحجم |
|---|---|
| صفائح | Thickness: 0.1 mm – 50 mm |
| لوحات | Thickness: 0.3 mm – 100 mm |
| الحانات | القطر: 5 ملم – 300 ملم |
| الأسلاك | القطر: 0.1 ملم – 10 ملم |
| أنابيب | القطر الخارجي: 6 ملم – 200 ملم |
| أنابيب | القطر الخارجي: 10 ملم – 300 ملم |
| تركيبات | تكوينات مختلفة وفقا للمعايير |
| المطروقات | أشكال وأحجام مختلفة حسب المعايير |
معايير الإنتاج
INCONEL® alloy 690 conforms to international production standards:
| معيار | وصف |
|---|---|
| ASTM B167/B829 | Seamless and welded tubes |
| أستم B564 | المطروقات |
| أستم B166 | Bars and rods |
| أستم B168 | Plates and sheets |
| أستم B366 | تركيبات |
Industry Applications of INCONEL® Alloy 690
INCONEL® alloy 690 is utilized across various industries due to its exceptional corrosion resistance and mechanical properties:
- المعالجة الكيميائية: Reactors, heat exchangers, and piping systems in corrosive environments.
- Nuclear Power: Steam generators and reactor core components.
- توليد الطاقة: Coal gasification equipment, flare stacks, and hydrogen reformers.
- النفط والغاز: Equipment in sour gas environments, including desulfurization units and offshore platforms.
- الفضاء الجوي: Engine components and thrust reversers.
Advantages of INCONEL® Alloy 690
- Superior Corrosion Resistance: Excellent resistance to stress corrosion cracking, oxidation, and carburization.
- High Strength: Maintains mechanical integrity at elevated temperatures.
- Versatility: Suitable for both oxidizing and reducing environments.
- Longevity: Provides long-term reliability in aggressive industrial applications.
خاتمة
INCONEL® alloy 690 stands as a high-performance alloy renowned for its superior corrosion resistance and mechanical properties in challenging environments. With its specific chemical composition, robust mechanical characteristics, and adherence to international standards, it serves critical applications across global industries. Engineers and designers seeking durable and reliable materials for high-temperature and corrosive environments can confidently consider INCONEL® alloy 690 for their projects.
للحصول على المواصفات الفنية التفصيلية ومزيد من الاستفسارات، يوصى بالرجوع إلى أوراق بيانات المنتج المحددة والتشاور مع الشركات المصنعة.
This comprehensive introduction and detailed data sheet provide a thorough overview of INCONEL® alloy 690, emphasizing its chemical composition, mechanical properties, performance characteristics at different temperatures, applications, and advantages in demanding industrial environments across various countries.