Hastelloy C276 butt welded elbows exposed to elevated temperatures

Hastelloy Alloys Directory
The Corrosion Resistant HASTELLOY alloys are widely used by the chemical processing industries. The need for reliable performance leads to their acceptance and growth in the areas of energy, health and environmental, oil and gas, pharmaceutical and flue gas desulfurization industries.

This provides greatly enhanced resistance to sulfuric acid. It also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen.

Hastelloy C2000 is available in a variety of sizes and thicknesses, this type of nickel-chromium-molybdenum alloy is renowned for its superior strength and corrosion resistance.

It is able to withstand a wide range of oxidizing and non-oxidizing chemicals, and exhibits outstanding resistance to pitting and crevice attack in the presence of chlorides and other halides.

It demonstrates good resistance to neutral and reducing environments. This alloy creates a tenacious oxide, protective film that does not spall off, but it retains superior oxidation resistance at soaring temperatures.

Hastelloy C2000 Tubes are used in a broad range of industries including petrochemical processing, chemical processing equipment manufacturing, oil refineries and power plants.

The Molybdenum of Hastelloy B2 pipe bend is the primary alloying element which provides significant corrosion resistance to reducing environments.

HASTELLOY X pipe bend is recommended especially for use in furnace applications because it has unusual resistance to oxidizing, reducing, and neutral atmospheres.

Hastelloy c22/C276 fasteners have good dimensional accuracy, corrosion resistance, durability, high durability, high flexibility, strong structure, high tensile strength and other characteristics. The presence of molybdenum and tungsten provides good resistance to reducing media. The nickel content of Hastelloy c22 fasteners provides admirable resistance to oxidizing aqueous media. These fasting agents also work well wet in environments containing chlorine, formic acid, and acetic acid.

Welding of this alloy is similar to that of the C-22 alloy. Gas tungsten arc welding (GTAW) and shielded metal arc welding (SMAW) are commonly used to weld C-276 alloys.

It is recommended that the alloy be welded in the solution annealed condition with C-276 filler metal.

Hastelloy C2000 flanges are a special alloy for securing chemical process equipment under different conditions, including streams contaminated with ferric ions.

Hastelloy C-276 is a very popular alloy for us because of its high corrosion resistance in a wide range of environments. HT PIPE stocks a large stock of Hastelloy c726 bolts and fasteners. Hastelloy C-276 fasteners are made of nickel-molybdenum-chromium forged alloy, which is an improved forged version of alloy C. We stock Hastelloy c-276 bolts, nuts, screws, washers, studs, socket head cap screws, and many other fasteners for timely shipment.

Hastelloy C-276 alloy can be forged, hot-upset, and impact extruded. Although the alloy tends to work-harden, it can be successfully deep-drawn, spun, press formed or punched.

Hastelloy C22 has good versatility and resistance to chloride-induced pitting HASTELLOY? C-22? alloy (UNS N06022) is a well-known nickel-chromium-molybdenum material, some of its main properties are resistance to oxidizing and non-oxidizing chemicals, protection from Subject to pitting, crevice corrosion and stress corrosion cracking. C22 has a high chromium content and is more resistant to oxidation than C-276 alloy.

Hastelloy Alloy B2 Pipes is known for its excellent chemical resistance, suited to high pressure and high temperature applications.

Light gauge steel framing is an integral part of modular construction as it is strong, lightweight, durable, accurate, free from long-term movement and is well proven in a wide range of applications.

These alloys can function at very high temperatures and in severe mechanical stress environments, and also where high surface stability is required. They have high creep and oxidation resistance.

This alloy is resistant to the formation of grain boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in an as welded condition.

Hastelloy C-276 bushings are also used in sour gas wells, pulp and paper production, waste disposal, pharmaceutical and food processing equipment. Other important properties of this alloy Nickel Alloy C-276 and Hastelloy C-276 include its resistance to oxidizing agents.

The flange is second most used joining method after selding. Flanges are used when joints need dismantling. It provides flexibility for maintenance. Flange connects the pipe with various equipment and valves. Breakup flanges are added in the pipeline system if regular maintenance in required during plant operation.
A flanged joint is composed of three separate and independent although interrdlated components; the flanges, the gaskets, and the bolting; which are assembled by yet another influence, the fitter. Special controls are required in the selection and application of all there elements to attain a joint, which has acceptable leak tightness.
A flange is a protruded ridge, lip or rim, either external or internal, that serves to increase strength (as the flange of an iron beam such as an I-beam or a T-beam); for easy attachment/transfer of contact force with another object (as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera); or for stabilizing and guiding the movements of a machine or its parts (as the inside flange of a rail car or tram wheel, which keep the wheels from running off the rails). The term “flange” is also used for a kind of tool used to form flanges.

The pipes are having good stress corrosion cracking and pitting resistance ability.

HASTELLOY(r) C276 is solution heat treated at 1121¡ãC (2050¡ãF) and then rapidly quenched. In the case of forging or hot forming, parts should be solution heat treated prior to use.

Hastelloy C276 flanges are made of a nickel-chromium-molybdenum alloy called Hastelloy. The composition includes 50.99% nickel, 14.5% chromium, 15% molybdenum and carbon, manganese, silicon, sulfur, cobalt, iron and phosphorus. Hastelloy C276 flanges have a high melting point of 1370 degrees Celsius.

These Hastelloy B2 Slip On Flanges can be machined using all the traditional machining methods. More than most other metals of similar chemistry, our Hastelloy B2 Spectacle Blind Flanges offers superior protection against powerful chemical corrosion and comes with one of the best high ¨C temp strengths of any steel.

C-276 alloy has excellent resistance to pitting and to stress-corrosion cracking. It is also one of the few materials that withstands the corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide.

Hastelloy C22 machined gaskets also have the best resistance to environments that encounter reducing and oxidizing conditions in the process stream. Hastelloy C22 round washers can be welded, forged, hot upset and impact extruded. Typical chemical process industry (CPI) applications for Hastelloy C22 punch gaskets include reactors, heat exchangers and columns. Hastelloy C22 flat washers have excellent resistance to pitting corrosion, stress corrosion cracking, tool marks and weld heat affected zone erosion.

The primary alloy base materials for Hastelloy C276 include metals such as nickel, molybdenum and chromium. In addition to these three metals, Hastelloy C276 fasteners also have tungsten added. It is well known that the addition of tungsten to superalloys can improve the corrosion resistance of alloys in various harsh environments. Hastelloy C-276 alloy has excellent resistance to a variety of chemical process environments, including strong oxidizing agents such as ferric and cupric chlorides, hot fouling media (organic and inorganic), chlorine, formic and acetic acid, acetic anhydride , seawater and brine solutions.

Although HASTELLOY X pipe bend is primarily noted for heat and oxidation resistance it also has good resistance to chloride stress-corrosion cracking and has good resistance to carburization, excellent resistance to reducing or carburizing atmospheres.

The flange is second most used joining method after selding. Flanges are used when joints need dismantling. It provides flexibility for maintenance. Flange connects the pipe with various equipment and valves. Breakup flanges are added in the pipeline system if regular maintenance in required during plant operation.
A flanged joint is composed of three separate and independent although interrdlated components; the flanges, the gaskets, and the bolting; which are assembled by yet another influence, the fitter. Special controls are required in the selection and application of all there elements to attain a joint, which has acceptable leak tightness.
A flange is a protruded ridge, lip or rim, either external or internal, that serves to increase strength (as the flange of an iron beam such as an I-beam or a T-beam); for easy attachment/transfer of contact force with another object (as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera); or for stabilizing and guiding the movements of a machine or its parts (as the inside flange of a rail car or tram wheel, which keep the wheels from running off the rails). The term “flange” is also used for a kind of tool used to form flanges.

A nickel alloy of this type also has great resistance to hydrochloric acid at different concentrations and temperatures.

Another difference between Astm B626 Nickel Alloy C276 Welded Pipe and Alloy C is that Alloy C276 pipe has better machinability.

Although Alloy C276 plate has a higher rate of work hardening compared to its austenitic counterpart, in-process annealing may be required if nickel alloy C276 plate is to be work hardened to a higher degree. Solution annealing may be required if the deformation of the nickel C276 strip exceeds 15%.

Hastelloy G-30 is an improved version of nickel-chromium-iron-molybdenum-copper alloy G-3. With higher chromium, added cobalt and tungsten, the G-30 shows superior corrosion resistance over most other nickel and iron based alloys in commercial phosphoric acids as well as complex environments containing highly oxidizing acids. The resistance of the alloy to the formation of grain boundary precipitates in the heat-affected zone makes it suitable for use in most chemical process applications in the as-welded condition.

A butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.

This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, …) in a safe and efficient manner, over short or long distances.

Hastelloy C276 Plates, which has excellent corrosion resistance in reducing environments. Inconel C276 Plates is a nickel-molybdenum-chromium superalloy with an addition of tungsten designed to have excellent corrosion resistance in a wide range of severe environments.

Alloy C-276 has excellent resistance to pitting and stress corrosion cracking. It is also one of the few materials that can withstand the corrosive effects of wet chlorine, hypochlorite and chlorine dioxide.