The Corrosion-Resistant HASTELLOY® alloys have become widely used by the chemical processing industries. However, the need for reliable performance has lead 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.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 reducing 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 was designed specifically to resist commercial phosphoric acid. As such, it has been very successful as heat exchanger tubing and for other process components in the fertilizer industry. By virtue of its high chromium content, it is also the premier choice for strong oxidizing solutions and mixed acid pickling services.
G-50® alloy is a tubing material developed for deep sour gas environments. It is intended for use in the cold-worked condition and is very resistant to hydrogen embrittlement.
B-3® alloy is the newest of the "B-type" alloys. The alloy possesses outstanding resistance to reducing 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.
D-205TM alloy has been successfully used in plate heat exchangers exposed to hot concentrated sulfuric acid. It exhibits several advantages over the high-silicon stainless steels, including enhanced resistance to pitting corrosion in chloride-bearing media.
| HASTELLOY®
B-2 alloy
Product Brochure |
Superior resistance to hydrochloric acid, aluminum chloride catalysts and other strongly reducing chemicals. |
| HASTELLOY®
B-3® alloy
Product Brochure |
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®
C-4 alloy
Product Brochure |
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
Product Brochure |
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 corrosion of weldments. |
| HASTELLOY®
C-276 alloy
Product Brochure |
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
Product Brochure |
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
Product Brochure |
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-50® alloy | Superior resistance to stress corrosion cracking in deep sour gas environments. Improved corrosion resistance over G-3 alloy and less costly than C-276 alloy. |
| HASTELLOY®
N alloy
Product Brochure |
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). |
| ULTIMET®
alloy
Product Brochure |
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). |
