INCONEL® Alloy 686: Comprehensive Product Introduction
Introduction to INCONEL® Alloy 686
INCONEL® alloy 686 is a versatile nickel-chromium-molybdenum-tungsten alloy known for its exceptional corrosion resistance in a wide range of aggressive environments. Developed as an upgrade over traditional nickel alloys, INCONEL® 686 offers superior resistance to localized corrosion, pitting, and crevice corrosion. This article provides a detailed overview of INCONEL® alloy 686, 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 686
INCONEL® alloy 686 is formulated with precise elements to achieve its corrosion-resistant properties:
| عنصر | تعبير (٪) |
|---|---|
| النيكل (ني) | 58.0 min |
| الكروم (الكروم) | 20.0-23.0 |
| الموليبدينوم (مو) | 15.0-17.0 |
| التنغستن (ث) | 3.0-4.4 |
| الحديد (الحديد) | 5.0 max |
| كوبالت (كو) | 1.0 كحد أقصى |
| المنغنيز (من) | 1.0 كحد أقصى |
| السيليكون (سي) | 0.50 كحد أقصى |
| الكربون (ج) | 0.020 كحد أقصى |
| الفوسفور (ف) | 0.015 كحد أقصى |
| الكبريت (S) | 0.010 كحد أقصى |
Mechanical Properties of INCONEL® Alloy 686
INCONEL® alloy 686 exhibits robust mechanical properties suitable for demanding applications:
| ملكية | قيمة |
|---|---|
| قوة الشد | 760 ميجا باسكال (110 كيلو باسكال) دقيقة |
| قوة الخضوع (إزاحة 0.2%) | 345 MPa (50 ksi) min |
| استطالة | 40% min |
| صلابة (برينل) | 200-250 (varies with heat treatment) |
| كثافة | 8.68 g/cm³ |
الأداء في درجات حرارة مختلفة
INCONEL® alloy 686 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 686 is recognized by various grades in different countries and regions:
| البلد/المنطقة | درجة |
|---|---|
| الولايات المتحدة الأمريكية | UNS N06686 |
| ألمانيا | 2.4606 |
| فرنسا | - |
| UK | - |
| Japan | - |
| China | - |
النماذج والأحجام القياسية ومعايير الإنتاج
الأشكال والأحجام
INCONEL® alloy 686 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 686 conforms to international production standards:
| معيار | وصف |
|---|---|
| ASTM B462 | المطروقات |
| أستم B564 | Bars and forgings |
| أستم B574 | قضبان |
| أستم B575 | Plates and sheets |
| ASTM B619/B622 | Welded and seamless pipes and tubes |
| أستم B366 | تركيبات |
Industry Applications of INCONEL® Alloy 686
INCONEL® alloy 686 is widely utilized across various industries due to its superior corrosion resistance and mechanical properties:
- المعالجة الكيميائية: Reactors, vessels, and piping systems handling acids, alkalis, and mixed chemicals.
- النفط والغاز: Equipment in sour gas environments, including downhole components and pipelines.
- لب الورق والورق: Digesters, bleach plants, and recovery boilers.
- توليد الطاقة: Flue gas desulfurization systems, scrubbers, and heat exchangers.
- Marine: Propeller shafts, seawater cooling systems, and marine exhaust systems.
Advantages of INCONEL® Alloy 686
- Superior Corrosion Resistance: Excellent resistance to localized corrosion and pitting.
- High Strength: Maintains mechanical integrity in harsh environments.
- Versatility: Suitable for both high and low-temperature applications.
- Longevity: Provides long-term reliability in corrosive environments.
خاتمة
INCONEL® alloy 686 stands as a high-performance alloy designed to excel in corrosive environments where traditional materials fall short. With its unique combination of chemical composition, mechanical properties, and adherence to international standards, it serves critical applications across global industries. Engineers and designers seeking durability and reliability in aggressive chemical and marine environments can confidently consider INCONEL® alloy 686 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 686, emphasizing its chemical composition, mechanical properties, performance characteristics at different temperatures, applications, and advantages in demanding industrial environments across various countries.