The Corrosion-Resistant HASTELLOY® alloys are widely used by the chemical processing industries. The need for reliable performance leads to their acceptance and growth in the areas of energy, health and environmental, oil and gas, pharmaceutical and flue gas desulfurization industries. The attributes of HASTELLOY® alloys include high resistance to uniform attack, outstanding localized corrosion resistance, excellent stress corrosion cracking resistance, and ease of welding and fabrication.
B-3® alloy possesses outstanding resistance to non-oxidizing acids, such as hydrochloric acid and sulfuric acid. The advantages of B-3® alloy over previous B-family alloys are enhanced thermal stability and improved fabrication characteristics. A new alloy, HASTELLOY® HYBRID-BC1® alloy will handle stronger non-oxidizing acids than C-type alloys and will tolerate oxidizing impurities that B-type alloys will not.
The most versatile of the HASTELLOY® alloys are the "C-type" alloys. C-2000® alloy combines outstanding resistance to oxidizing media with superior resistance to non-oxidizing environments and represents a true performance breakthrough for chemical process equipment applications. C-22® alloy is particularly resistant to pitting and crevice corrosion; it has been used extensively to protect against the most corrosive FGD systems and the most sophisticated pharmaceutical reaction vessels.
G-30® alloy has been very successful as phosphoric acid heat exchanger tubing and for other process components in the fertilizer industry. G-35® alloy was designed as an improved version of G-30 alloy in these applications. The high chromium content of both of these alloys make them the premier choices for strong oxidizing solutions and mixed acid pickling services.
| Corrosion-Resistant Alloys |
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| HASTELLOY® B-3® alloy |
HASTELLOY® G-30® alloy |
| HASTELLOY® HYBRID-BC1® alloy |
HASTELLOY® G-35® alloy |
| HASTELLOY® C-4 alloy |
HASTELLOY® N alloy |
| HASTELLOY® C-22® alloy |
ULTIMET® alloy |
| HASTELLOY® C-22HS® alloy |
Fabrication of HASTELLOY® Corrosion-Resistant alloys |
| HASTELLOY® C-276 alloy |
Specifications - Corrosion-Resistant Alloys |
| HASTELLOY® C-2000® alloy |
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| HASTELLOY® Family of Corrosion-Resistant Alloys |
| HASTELLOY® B-3® alloy |
Same excellent resistance to hydrochloric acid and other strongly reducing chemicals as B-2 alloy, but with significantly better thermal stability, fabricability and stress corrosion cracking resistance. |
| HASTELLOY® HYBRID- BC1® alloy |
A new Ni-Cr-Mo alloy with superior resistance to hydrochloric and sulfuric acids, without the drawbacks of the Ni-Mo and Zr materials. Its resistance to these key chemicals is much greater than that of the popular Ni-Cr-Mo (C-type) alloys, yet it shares w |
| HASTELLOY® C-4 alloy |
High-temperature stability in the 1200-1900°F (650-1040°C) range as evidenced by good ductility and corrosion resistance. Virtually the same corrosion resistance as alloy C-276. |
| HASTELLOY® C-22® alloy |
Better overall corrosion resistance in oxidizing corrosives than C-4, C-276 and 625 alloys. Outstanding resistance to localized corrosion and excellent resistance to stress corrosion cracking. Best alloy to use as universal weld filler metal to resist cor |
| HASTELLOY® C-22HS® alloy |
This alloys was designed to exhibit corrosion resistance comparable to other C-type alloys, but which can be heat treated to obtain approximately double the yield strength. |
| HASTELLOY® C-276 alloy |
Versatile, corrosion resistant alloy. Very good resistance to reducing, and mildly oxidizing corrosives. Excellent stress corrosion cracking resistance with very good resistance to localized attack. |
| HASTELLOY® C-2000® alloy |
Most versatile, corrosion resistant alloy with excellent resistance to uniform corrosion in oxidizing or re-ducing environments. Excellent resistance to stress corrosion cracking and superior resistance to localized corrosion as compared to C-276 alloy. |
| HASTELLOY® G-30® alloy |
Many advantages over other metallic and non-metallic materials in handling phosphoric acid, sulfuric acid, nitric acid, fluoride environments and oxidizing acid mixtures. |
| HASTELLOY® G-35® alloy |
Excellent resistance to corrosion in highly oxidizing media and acidic chloride environments. |
| HASTELLOY® N alloy |
Good resistance to aging and embrittlement and good fabricability. It has excellent resistance to hot fluoride salts in the temperature range of 1300°F to 1600°F (705°C-870°C). |
| Corrosion-Wear Resistant Alloy |
| ULTIMET® alloy |
High yield strength alloy with excellent resistance to pitting corrosion and general corrosion, especially in oxidizing acids, coupled with exceptional wear resistance (cavitation erosion, galling and abrasion). |
| Fabrication of HASTELLOY® Corrosion-Resistant alloys |
Fabrication of HASTELLOY®
Corrosion-Resistant alloys |
General Guidelines for Welding, Brazing, Hot and Cold Working, Heat Treating, Pickling and Finishing. |
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