It implies that in welded systems, the metal maintains high pitting and crevice corrosion resistivity. Other materials compared to Hastelloy C276 Round Bars may weld weaker after being heated during the welding and making it more resistant to corrosion. This material is exceptionally resistant to general corrosion, including stress corrosion cracking and crevice corrosion. A wide range of features including chemical and flue gas desulfurization equipment is often used by Hastelloy C276 Round Bars. HASTELLOY C-276 is an unrivaled worldwide corrosion resistance nickel-chromium-molybdenum alloy. Hot polluted mineral acids, solvents, chlorine, and chlorine polluted environments (both physical and chemical), hypochlorite and chlorine dioxide solutions, dry chlorine, formic and acetic acids, acetic anhydride, seawater and brine solutions, and hypochlorite and chlorine dioxide solutions are a variety of chemical conditions which are resistant. Alloy C276 resists the formation of grain boundary precipitates in the weld heat-affected zone in the as-welded condition, making it appropriate for most chemical applications. It is very resistant to pitting and stress corrosion cracking. It’s no surprise that Hastelloy Alloy C276 Round Bars are usually employed in so many commercial applications because they have such a wide range of long-lasting qualities which makes them more enhancing. The high molybdenum content enhances the resistivity regarding pitting and cracking corrosion. Waste fluid treatment systems use this metal when other metals are not able to survive in demanding conditions.Hastelloy serves many different applications in these industry categories: •Chemical Process •Petrochemical •Oil & Gas •Pharmaceutical •Geothermal •Sea Water •Water Desalination •LNG (Liquefied Natural Gas) •Biomass •Mining •Utilities •Nuclear Power •Solar PowerHastelloy 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. The recently developed Hastelloy Hybrid-BC1, will handle stronger non-oxidizing acids than C-type alloys and will tolerate oxidizing impurities that B-type alloys will not. Hastelloy 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. 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 is 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 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.| Item | HC-276 | C-22 | C-4 | B2 | B3 | N |
| C | ≤0.01 | ≤0.015 | ≤0.015 | ≤0.02 | ≤0.01 | 0.04-0.08 |
| Mn | ≤1 | ≤0.5 | ≤1 | ≤1 | ≤3 | ≤1 |
| Fe | 4-7 | 2-6 | ≤3 | ≤2 | ≤1.5 | ≤5 |
| P | ≤0.04 | ≤0.02 | ≤0.04 | ≤0.04 | -- | ≤0.015 |
| S | ≤0.03 | ≤0.02 | ≤0.03 | ≤0.03 | -- | ≤0.02 |
| Si | ≤0.08 | ≤0.08 | ≤0.08 | ≤0.1 | ≤0.1 | ≤1 |
| Ni | rest | rest | rest | rest | ≤65 | rest |
| Co | ≤2.5 | ≤2.5 | ≤2 | ≤1 | ≤3 | ≤0.2 |
| Ti+Cu | -- | -- | ≤0.7 | -- | ≤0.4 | ≤0.35 |
| Al+Ti | -- | -- | -- | -- | ≤0.5 | ≤0.5 |
| Cr | 14.5-16.5 | 20-22.5 | 14-18 | ≤1 | ≤1.5 | 6-8 |
| Mo | 15-17 | 12.5-14.5 | 14-17 | 26-30 | ≤28.5 | 15-18 |
| B | -- | -- | -- | -- | -- | ≤0.01 |
| W | 3-4.5 | 2.5-3.5 | -- | -- | ≤3 | ≤0.5 |
| V | ≤0.35 | ≤0.35 | -- | 0.2-0.4 | -- | ≤0.5 |
