Corrosion-resistant Hastelloy alloys are widely used in the chemical processing industry. The need for reliable performance leads to acceptance and growth in the geothermal, solar, oil, gas and pharmaceutical sectors. Advantages of Hastelloy Tube include high uniform attack resistance, excellent localized corrosion resistance, good stress corrosion cracking resistance, and ease of welding and manufacturing.

Hastelloy C-276 Bleach Cup, 2 C-276 U Tube Packs

B-3 alloys have excellent resistance to non-oxidizing acids such as hydrochloric acid and sulfuric acid. The advantages of B-3 alloys over previous B family alloys are improved thermal stability and improved manufacturing properties. The newly developed Hastelloy Hybrid BC1 processes stronger non-oxidizing acids than Type C alloys and tolerates oxidative impurities that Type B alloys do not.

Hastelloy C-276 shell and tube heat exchanger, polished tube sheet surface

The most versatile Hastelloy alloy is the "Type C" alloy. The C-2000 alloy's excellent resistance to oxidizing media combined with excellent resistance to non-oxidizing environments represents a true performance boost for chemical process equipment applications.

C-22 alloys are especially resistant to pitting and crevice corrosion. They are widely used to protect against the most corrosive FGD systems and the most sophisticated drug reaction vessels.

G-30 alloy has been very unbeaten as a phosphoric acid heat exchanger pipe. This is the other procedure mechanism in the fertilizer business. The G-35 alloy was designed as an upgraded version of the G-30 alloy for these Hastelloy applications.

Hastelloy family of corrosion-resistant alloys

Hastelloy B-3 Alloy

It has the same excellent resistance to hydrochloric acid and other strong chemicals as the B-2 alloy, but with greatly improved thermal stability, workability and stress corrosion resistance.

Hastelloy HYBRID-BC1 Alloy

New Ni-Cr-Mo alloy with excellent resistance to hydrochloric acid and sulfuric acid without the drawbacks of Ni-Mo and Zr materials. Its resistance to these major chemicals is far superior to common Ni-Cr-Mo alloys (Type C), but shares excellent resistance to pitting and crack attack in chloride salt solutions And even more resistant. Ni-Mo alloy cannot withstand high levels of oxide impurities.

Hastelloy C-22 alloy

It has the better overall corrosion resistance of oxidizing corrosives than C-4, C-276, and 625 alloys, and has excellent local corrosion resistance and excellent resistance to stress corrosion cracking. The best alloy to use as a general-purpose weld filler metal to resist weld corrosion.

Hastelloy C-22HS Alloy

This alloy is designed to have corrosion resistance comparable to other Type C alloys but can be heat treated to obtain about twice its yield strength.

Hastelloy C-276 Alloy

It is a highly versatile corrosion resistant alloy. This C-276 Hastelloy Pipe is very good resistance to reduced corrosion and slight oxidation. Very good resistance to local attack and good resistance to stress corrosion cracking.

Hastelloy C-2000 Alloy

Excellent resistance to stress corrosion cracking and local corrosion compared to C-276 alloy.

Hastelloy G-35 alloy

Excellent resistance to corrosion in highly oxidizing media and acid chloride environments.

Hastelloy Applications

Hastelloy supports a variety of applications in the following industry categories:

• Chemical process


• petrochemistry


• Oil and gas


• pharmacist


• Geothermal


• Seawater


• Water desalination


• LNG (liquefied natural gas)


• biomass


• Mining


• utility


• Nuclear power


• Solar energy