Hastelloy® C-276
Hastelloy C-276 is a nickel-molybdenum-chromium superalloy with an addition of tungsten. It is designed to have excellent corrosion resistance in a wide range of severe environments. It is often considered the most versatile corrosion-resistant alloy available.
- الأشكال الشائعة: Plate, Sheet, Pipe, Flanges, Bar, Wire.
- الميزة الرئيسية: Resistant to wet chlorine, hypochlorite, and chlorine dioxide.
- Welding: Very low carbon/silicon ensures minimal grain boundary precipitation.
- Resistance: Exceptional resistance to strong solutions of oxidizing salts.
In harsh chemical processing environments where "upset" conditions are likely to occur, Hastelloy C-276 offers the best insurance. Its resistance to grain boundary precipitation in the heat-affected zone makes it suitable for most chemical process applications in the as-welded condition.
Wet Chlorine Resistance
One of the few materials that can withstand the corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide.
Pitting & Crevice Corrosion
The high Molybdenum (15-17%) content provides outstanding resistance to localized corrosion (pitting) even in severe chloride environments.
Sour Gas Service
Excellent resistance to sulfide stress cracking and stress-corrosion cracking in sour gas environments (hydrogen sulfide).
| العنصر | المحتوى (%) |
|---|---|
| النيكل (ني) | 57.0 min (Balance) |
| الموليبدينوم (Mo) | 15.0 - 17.0 |
| الكروم (Cr) | 14.5 - 16.5 |
| الحديد (Fe) | 4.0 - 7.0 |
| التنجستن (W) | 3.0 - 4.5 |
| المنجنيز (Mn) | 1.0 max |
| الكربون (C) | 0.01 كحد أقصى |
*Note: The high Molybdenum and Tungsten content are critical for its resistance.
| نموذج المنتج | معايير ASTM / ASME |
|---|---|
| لوحة، ورقة، شريط، شريط | astm B575، ASM SB575 |
| الأنابيب (غير الملحومة) | astm B622، ASM SB622 |
| أنابيب (ملحومة) | astm B619، ASM SB619 |
| بار وقضيب | astm B574، ASM SB574 |
| التركيبات | astm B366، ASM SB366 |
| المطروقات | astm B564، ASM SB564 |
| الممتلكات | القيم النموذجية (درجة حرارة الغرفة) |
|---|---|
| قوة الشد | 100 - 115 ksi (690 - 795 MPa) |
| قوة الخضوع (إزاحة 0.2%) | 40 - 55 ksi (275 - 380 MPa) |
| الاستطالة | 40 - 65 % |
| الصلابة (برينل) | 150 - 200 HB |
مكافحة التلوث
Liners, ducts, dampers, scrubbers, stack-gas reheaters, and fans in Flue Gas Desulfurization (FGD) plants.
المعالجة الكيميائية
Heat exchangers, reaction vessels, evaporators, and transfer piping handling mixed acids and chlorides.
اللب والورق
Digesters and bleach plants handling chlorine dioxide and hypochlorite solutions.
Waste Treatment
Evaporators and crystallizers treating industrial and municipal waste streams.
Need Hastelloy C-276 Plate or Pipe?
We maintain a large inventory of Hastelloy C-276. We can cut plate to your custom specifications. Contact us for a quote today.
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