The Hastelloy C276 Hexagon Bar is made from an alloy that is known to be corrosion-resistant. It is produced by steel or stainless steel companies all over the world. This Hastelloy C276 Hexagon Bar is used for the following machines: processing of chemicals and petrochemicals, handling of industrial waste, making paper and pulp, and for flue gas desulfurization. In short, this hex bar is very important because even the most toxic of material is unable to destroy it.
The exact component of the alloy used for this hex bar is nickel-molybdenum-chromium-iron-tungsten. It is the molybdenum which prevents corrosion. The alloy is known for being resistant also to high temperature and oxidation. Oxidation as you may know is what causes metals to rust.
However, while it may be available in many countries, Japan is still the number one sought-after supplier because of the heavy metal companies there that have managed to maintain a certain level of integrity in their outputs. When dealing with these types of projects and equipment, companies requiring the hex bar need to know that it won’t break down easily. Keep in mind that the alloy only resists corrosion but eventually it will happen. Thus quality and dependability are two factors of the utmost importance.
For those just starting out or looking to other options than the C276 Hex bar, there is an ongoing debate about using the Hastelloy C-22 instead. The reasons that have been given are:
The C-22 has a better corrosion resistance because of its chemical composition. In short, it has a 6% higher corrosion resistance, so they say which improves the life span of the hex bar by at least 5 times
The C-22 tends to crack less under severe stress, pitting, and crevice corrosion but this is only based on oxidation or high temperatures. Otherwise the properties are same under reduced temperatures
It’s easier to weld the C-22 which means less chances of corrosion around the joints or ends
What do the experts say: the choice between the C-22 and the C276 hex bar would depend on usage? No project is identical to any other. The bottom line would be to get materials of the highest quality.
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