Hastelloy C276 sheets are renowned for outstanding corrosion resistance in harsh environments, even at elevated temperatures they shrug off stress corrosion cracking. This nickel-chromium-molybdenum blend shines in sterilization equipment, enduring both chemical sterilants and the intense heat of repeated cycles.

When strength and longevity are key, alloys like carbon steel fit bridge building nicely by resisting pitting or crevice corrosion. Though tough, carbon steel still succumbs to the kind of microscopic attack that Hastelloy sidesteps, which is why engineers specify the more costly material in harsher settings.

Available in common industrial gauges and custom sizes, bulk sheets of Hastelloy C276 sheets can be found off-the-shelf or ordered to drawing, allowing part producers to aviation or chemical facilities to meet demanding specs.

The alloy fights chloride-induced pitting, crevice corrosion, and stress cracks, standing firm against both oxidizing and reducing acids such as hydrochloric and sulfuric.

Those traits also explain why refiners and sour-gas plants use C-276 piping and vessels; the steel endures in hydrogen-sulfide-laden streams where ordinary carbon steels fail rapidly, especially when carbon dioxide lurks.

In scrubber systems operators worry about black sulfide scale blocking lines and heating surfaces. Hastelloy C-276 minimises that problem because its surface oxides resist the microchemical reactions that usually start the build-up, helping maintain free-flowing equipment over months rather than weeks.

Such performance translates directly into lower cleaning costs, longer mechanical availability, and smaller replacement inventories, all of which appeal to project managers tracking maintenance budgets around the globe.

Hastelloy C276 is a very forgiving alloy when it comes to joining metal; its rich nickel and molybdenum content, along with limited carbon, keeps grain growth in check and lets the weld be as tough as the parent material.

Inconel 625 Data Sheet

A lean hydrogen atmosphere or light hydrocarbons present severe risk of premature failure in most superalloys; Alloy 625 sidesteps that problem because its heavy nickel backbone limits how much hydrogen can pass through.

All 625 forges chromium with a sprinkle of molybdenum and niobium, balancing protection against both oxidizing agents like oxygen or nitric acid and stubborn, non-oxidizing chemistries such as chloride, formate, or acetate. The blend also holds pitting and crevice attack in check, extending equipment life.

Welders appreciate Alloy 625 because ordinary TIG or MIG gear works well and there is no fussing with a heat-relief bake once the arc stops; cold-formed, spun, or punched parts stay usable, but any bend that stretches the outer skin more than seven percent needs a quick reanneal.

The official ASTM designation that covers Hastelloy C-276 plate is B575, which specifies a nickel-chrome-molybdenum-tungsten composition known for outstanding resistance to a wide range of corrosive media.

The added tungsten in this formulation helps guard against crevice and pitting attacks, especially in oxidizing environments that may contain chlorine or hypochlorite.

Hastelloy C276 Sheets plate can be machined with standard equipment such as lathes and mills, and it is also amenable to welding by methods like gas-tungsten-arc, shielded-metal, or submerged-arc.

Compared to most austenitic stainless steels, it shows better resistance to stress-corrosion cracking, making fabrication easier and more reliable in critical-service applications.

Because of its broad corrosion scope and ability to perform at elevated temperatures, the clad version of this alloy is frequently chosen for chemical-process vessels, flue-gas-desulfurization ducting, pharmaceutical equipment, and even food-processing machinery where cleanliness and durability are paramount.

Hastelloy X, sometimes called 625, and C-276 both belong to the nickel-chromium-molybdenum family, yet each was tailored for specific environment. In the following sections we will lay out their chemistry, corrosion behavior, mechanical strength, density, and ends-use industries to help you decide which suits your process best.

The high levels of chromium and molybdenum in the alloy give it dependable resistance to nearly every corrosive chemical that shows up in industrial settings, so engineers regularly specify the material for chemical-process plants and for flue-gas-desulfurization (FGD) systems.

An extra benefit of the added molybdenum is that it curbs pitting, while nickel helps guard against the kind of stress-corrosion cracking that chlorine, sulfuric acid, and hydrogen sulfide can cause; together with impressive fatigue strength, the combination keeps pumps, valves, and piping in service much longer.

What is Hastelloy C276 material?

Hastelloy C276 is a balanced nickel-chromium-molybdenum alloy that stands out in markets where equipment must survive extreme environments, so designers turn to it for plants handling aggressive chemicals or for exhaust-treatment systems trying to limit airborne emissions.

In addition to its chemical toughness, C276 maintains good strength at both room and elevated temperatures, is easy to weld and form, and, since it is practically non-magnetic, raises no alarms around sensitive electronic tools.

Nickel thwarts chloride-driven stress-corrosion cracking, while molybdenum and chromium deliver extra protection in nearly all oxidizing and non-oxidizing acids, and the small tungsten addition further reinforces the alloy against pitting and crevice action.

Because of those traits, C276 jackets reactors, tubes heat exchangers, and pressure vessels across the refining and chemical sectors, and it appears in scrubbers, stack liners, and offshore production as well-it even withstands the harsh conditions found in oil and gas wellhead fluids.