ASME SB 622 UNS N10276 Redrawn Tube and Alloy C276 Seamless Tubing supplier

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 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 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.

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.

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

Hastelloy C-4 is a nickel-chromium-molybdenum alloy with outstanding high temperature stability. It has high ductility and corrosion resistance. It’s high temperature resistance up to 1900 ¡ãF (1038 ¡ãC) makes it suitable for most chemical process application in the “as” welded condition.
Like other nickel alloys, it is ductile, easy to form and weld, and possesses exceptional resistance to stress corrosion cracking in chloride-bearing solutions (a form of degradation to
which the austenitic stainless steels are prone). With its high chromium and molybdenum
contents, it is able to withstand both oxidizing and non-oxidizing acids, and is resistant to
pitting and crevice attack in the presence of chlorides and other halides.

The best feature of Hastelloy C22 threaded flanges is that it has the best resistance to oxidizing aqueous media and a wide range of chemical process environments, including oxidizers like ferric acids, seawater, and chloride solution.

Werkstoff’s number 2.4602, Inconel Alloy 22, VDM Alloy 22 and ATI 22 alloy fall under same UNS number.

The low carbon content in the 2.4819 alloy C276 tube minimizes carbide precipitation. Carbide precipitation is a phenomenon that occurs during welding of various alloy grades.

Hastelloy C22 washers are composed of a nickel-chromium-molybdenum alloy that, like other high-nickel alloys, is highly ductile, making it easy to machine, weld, and fabricate into nuts, bolts, and screws. Hastelloy C-22 washers are made of Haynes International trademark alloy, also known as UNS N06022 or alloy 22 fasteners. C-22 fasteners are made from one of the more popular Hastelloy alloys. It is highly resistant to oxidizing/non-oxidizing chemicals, making it an excellent alloy for columns, heat exchangers and reactors in the chemical processing industry.

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.

While there are slight variances to different hot pipe bending methods, nearly all are a form of induction bending.

In the case of Hastelloy-C276, the corrosion product was primarily a protective chromium oxide scale, although slightly thicker regions of the same oxide formed at the site of microcracks on the metal surface. Very little carburization was observed in this alloy before exposure for at least 1000 hours.

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.

Hastelloy B3 pipe is significantly resistant to corrosion resistance at reducing atmosphere. Hastelloy B2 pipes are having excellent resistance to non-oxidizing acid and sulphuric acid.

Hastelloy C-276 has superior resistance to localized corrosion as well as oxidizing.C276 alloy is suitable for many chemical process applications.

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.

It can be used in reducing chemical environments and chemical processing industry.

Hastelloy C276 has excellent resistance to pitting, acid, crevice corrosion, and also in reducing the environment. This alloy is most widely used in many industrial applications because of its excellent qualities and features.

Hastelloy C-276 is the most common corrosion resistant material currently available, but it is not foolproof. Metals should not be exposed to high temperature, strong acid environment. Also, it is easier to work with cold working practices; hot working makes it easier to harden. If hot working, the temperature should be maintained between 1600¡ãF and 2250¡ãF.

Hastelloy 276 bolts and fasteners are suitable for most chemical applications in the welded condition. However, it should be noted that in environments where C-276 alloy weld joints are subject to attack, C-22 weld filler material should be considered. Hastelloy C276 socket head cap screws also have excellent resistance to pitting corrosion, stress corrosion cracking and oxidizing atmospheres up to 1900¡ãF.

HASTELLOY B-2 ALLOY. A nickel-molybdenum alloy with outstanding resistance to hydrochloric and sulfuric acids in the as-welded.Hastelloy B2 is a nickel-molybdenum alloy with significant resistance to reducing environments.

Nickel alloys provide high resistance to a wide variety of corrosive agents, oxidation and excellent performance at high temperatures.Certain Nickel Alloys are better for high temperature applications, while others do a better job with corrosion resistance.

Controlling other alloying elements such as iron and chromium

Hastelloy C-276 has a higher molybdenum content.

These flanges exhibit superior resistance to carburization and chloride stress corrosion cracking in reducing atmospheres.

Alloy X is known for its excellent high temperature strength and can withstand temperatures up to 2200¡ãF. The alloy can also be easily fabricated by manual and automated methods with forming and welding properties. In addition, Hastelloy X is resistant to corrosion, heat and oxidation and can withstand reducing or neutral atmospheres and oxidation.

C2000 flanges have better temperature capabilities in hydrofluoric, sulfuric, and diluted hydrochloric acids due to the addition of copper.

According to the flange size, wall thickness and diameters, the pressure classes vary from class 150 through class 2500. There are also different faced flanges such as the ring type joint Alloy B2 RTJ Flange, raised face flange and flat face flange.

Modern processing systems are often a complex network of turns, elevation changes, fittings, and more.

The outstanding oxidation resistance of HASTELLOY X pipe bend is illustrated below. Tests were conducted by exposing samples to dry air at 2000 Deg. F. and to dry air pressurized to 300 psi at 1750 Deg. F.

Two criteria for evaluating oxidation resistance are weight change and depth of corrosion penetration. HASTELLOY X pipe bend excels in both respects due to the formation of a protective, tenacious oxide film.

Otra diferencia entre la tuberia soldada Astm B626 de aleacion de niquel C276 y la aleacion C es que la tuberia de aleacion C276 tiene una mejor maquinabilidad.

Hastealloy is a term that refers to a group of corrosion resistant metal mixtures that are based on nickel. Hastealloys have a unique combination of properties that provide them with significantly stronger corrosion resistance capabilities compared to traditional alloys. As such, it was widely accepted in the chemical process and associated industries, and now has a 50-year-old track record of proven performance in a vast number of corrosive chemicals.

Hastelloy C276 alloy is a nickel-molybdenum-chromium wrought alloy that is considered a “multifunctional corrosion-resistant alloy”. Hastelloy C276 alloy has excellent corrosion resistance to both oxidizing and reducing media and excellent resistance to localized corrosion attack. The material also contains cobalt, tungsten, iron, silicon, manganese, carbon and vanadium in its composition. Due to this special combination, C276 Hastelloy bolts are also very resistant to pitting and crevice corrosion.