Hastelloy C276 forged flange VS stainless steel: Corrosion rate comparison in boiling hydrochloric acid

But excellent materials for use in pipes transporting liquids are, periodically at least, the sort of stuff you have to be selective about. Besides, between Hastelloy C276 forged flange and stainless steel there are two common materials used in this industry.pressure vessel manufacturer In this article, the author will take a boiling hydrochloric acid corrosion, for example to compare them.

Boiling Hydrochloric Acid – Hastelloy C276 vs. Stainless Steel Forged Flange

Hastelloy C276 is a nickel-molybdenum-chromium superalloy with an addition of tungsten designed to have excellent corrosion resistance in a wide range of severe environments. Stainless steel, however, is a specific type of steel that contains chromium to protect it from rust and corrosion.

Comparison of Corrosion Rates for Hastelloy C276 and Stainless Steel

Hastelloy C276 has demonstrated low corrosion rates in boiling hydrochloric acid than stainless steel. In other words, Hastelloy C276 is more appropriate where the metal will come into contact with any form of acid like this.

Boiling Hydrochloric Acid Corrosion Resistance Evaluation

So why is Hastelloy C276 better able to withstand corrosion in boiling hydrochloric acid than stainless steel?To find out we first have to look at the chemical composition of both metals. Hastelloy C276 is made from high amounts of nickel and molybdenum making it highly resistant to the acid’s corrosive properties. Stainless steel, by contrast, does not have as much nickel or molybdenum and is therefore more susceptible to corrosion.

Corrosion Rate Comparison between Stainless Steel and Hastelloy in Severe Acidic Service.

Apart from boiling HCl, the corrosion of Hastelloy C276 and stainless steel in other strong acid solu-tions was also a main source of concern. It has been found that Hastelloy C276 is more effective than stainless steel in many of these environments and is a better option for use when resistance to corrosion is desired.

Selecting the Appropriate Material for Boiling Hydrochloric Acid

Why Hastelloy C276 is better for applications with boiling hydrochloric acid All these factors make Hastelloy C276 the superior choice when it comes to selecting material that allows for optimal performance in applications where you are using boiling hydrochloric acid. It has excellent corrosion resistance in acid-making environments, so it is a good material to use for pipes, flanges and fittings that will be used with acid.

In the end, with regard to comparing corrosion rates in boiling hydrochloric acid between Hastelloy C276 Forged flange and stainless steel, it is evident that Hastelloy C276 forges flanges would be the way to go . Its better corrosion resistance in more aggressive acid chlorides means even when it is used up to 250 oC and oxida tion is a concern, it may be an ideal selection. Jetvision manufactures a extensive range of Hastelloy C276 products for all kind of industries. With jetvision Hastelloy c276 forged flanges for your system, you can protect your system from the corrosive effects of hydrochloric acid boiling exposure.