Hastelloy B2 pipe bend offers excellent resistance to hydrochloric acid

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.

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

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.

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.

Hastelloy G30 is a nickel-based alloy with a high chromium content that provides superior corrosion resistance to commercial phosphoric acid and many highly oxidizing acid media.

Hastelloy C-263, is an age hardenable nickel-cobalt-chromium-molybdenum alloy.Hastelloy? 2 C-263 has some very positive attributes that make it ideal for a wide range of applications. HAYNES? 263 alloy combines properties which make it suitable for a variety of fabricated component applications in both aircraft turbine engine and industrial turbine applications.

Hastelloy X is a nickel-chromium-iron-molybdenum alloy. It has excellent oxidation resistance, workability and high temperature strength. It also exhibits good resistance to stress corrosion cracking in petrochemical applications. It shows very good ductility after prolonged exposure at 1200 to 1600 degrees Fahrenheit. It has excellent forming and welding properties, and is widely used in furnaces for aircraft and gas turbines.

Alloy C276 (UNS N10276) is an austenitic nickel-molybdenumchromium alloy with a small addition
of tungsten.Hastelloy C-276 Alloy has excellent resistance to a wide variety of chemical process environments, including strong oxidizers such as ferric and cupric chlorides, hot contaminated media (organic and inorganic), chlorine, formic and acetic acids, acetic anhydride, and seawater and brine solutions.

Hastelloy C-2000 Fastener, also known by many as Alloy C-2000, is a versatile nickel-chromium-molybdenum alloy with excellent resistance to stress corrosion cracking and pitting corrosion. The C-2000 fastener (UNS N06200) is unique among other Hastelloy alloys with approximately 1.6% copper added to its chemical composition. These properties make them ideal for applications such as heat exchangers and industrial reactors. Hastelloy C2000 fasteners combine the excellent resistance to oxidizing media of C276 with excellent resistance to non-oxidizing environments, making it a unique alloy for protecting chemical process equipment under a variety of conditions, including fluids contaminated with iron ions .

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.

HASTELLOY(r) B-2 is a wrought nickel-molybdenum alloy that can be used in the ¡®as welded¡¯ condition.

Alloy N10675 is a high corrosion resistant nickel molybdenum Alloy. This alloy is characterized by a high resistance against hydrochloric acid and other reducing media in a wide range of temperature and concentration.

Alloy B (UNS N10001) was developed to resist hydrochloric acid. Hastelloy B2 has replaced it. Alloy B3 (UNS N10675) is a newer variant with higher thermal stability. These alloy B2 bolts are a wrought nickel molybdenum alloy that can be used in the as-welded condition. It is highly resistant to hydrochloric acid of all concentrations and temperatures. Known as UNS N10665 bolts, these bolts are also resistant to stress corrosion cracking and pitting.

Alloy C276 is a Ni-Cr-Mo alloy containing W and very low carbon and Si content.

Alloy C22 is a nickel-chromium-molybdenum solid solution strengthened super-alloy with a nominal chemical composition of 56% nickel, 22% chromium, and 13% molybdenum, with additions of iron, tungsten, and cobalt.

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.

Solved other issues concerning fabricability. Stringent chemistry control along with years of development has resulted in the alloy used today, both in Alloy B2 and Alloy B-3.

All of the common methods of welding can be used to weld Hastelloy C-276 alloy, although the oxyacetylene process is not recommended. Special precautions should be taken to avoid excessive heat input.

B3 Hastelloy Flanges has some excellent features to offer like fine finish, accurate range, and durable.

The pipes are phosphoric acid, acetic and formic acid resistant. Also, it to various temperature and concentrations is hydrochloric acid resistance.

In Hastelloy C276 hex bolts, the chromium content is increased to about 21% and the molybdenum content is reduced to about 13%. Hastelloy C276 Heavy Duty Hex Bolts also provide optimum resistance to environments encountered in reducing and oxidizing conditions in the process stream. Due to the use of experienced qualified professionals and the latest technological machinery.

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.

The greatest advantage of Hastelloy B3 bolts compared to B-2 alloys is their ability to maintain excellent ductility during transient exposure to intermediate temperatures.

Hastelloy B-3 is a nickel-molybdenum alloy with excellent resistance to pitting, corrosion and stress corrosion cracking and better thermal stability than alloy B-2. In addition, this nickel-steel alloy is highly resistant to knife-line and heat-affected zone attacks.

Hastelloy C276 is resistant to localized corrosion such as pitting and stress corrosion cracking.

Hastelloy C276 Fastener is a wrought corrosion resistant alloy that resists the development of grain boundary precipitates that reduce corrosion resistance. C276 alloy fasteners have good machinability and are used for desulfurization of flue gas equipment and chemical process equipment. Hastelloy C276 bolts are commonly used to hold materials or objects together, or to position objects. A fastener that usually consists of a head on one end and a chamfer on the other. It is typically used in solution treated condition and soaked at 1121¡ãC (2050¡ãF) and then flash quenched.

C276 is forged between 2250/1750oF (1230/955oC) and then soaked at the forging temperature for 30 minutes per inch of billet or ingot section thickness. Forging should begin immediately, the billet is removed from the reheat furnace, a 25/40% reduction helps retain as much internal heat as possible. For optimum corrosion resistance, forged parts should be subsequently annealed. See Heat Treatment.

In order to convey the pipeline, it is necessary to remove the straight hose in the pipeline. When using various pipelines, various pipelines must be used. When the pipeline is used, the elbow must be used to change the size of the pipeline. When bifurcating, the three-way pipe The flange connection used when the joint is used with various pipe joints, in order to reach the long-distance transmission pipeline, in order to reach the thermal expansion and cold contraction joint or effective connection aging of the pipeline, the long-distance expansion and cold contraction joint is used for the connection of the pipeline. , In the connection of various instruments, there are also the connectors and plugs of the instrument phase.

Hastelloy B2 fasteners are primarily used for excellent resistance to reducing environments such as hydrogen chloride gas, sulfuric acid, acetic acid and phosphoric acid. Like other Hastelloys, B2 fasteners can be used in the as-welded condition because they resist the formation of grain boundary carbide deposits in the weld heat-affected zone. Due to reduced ductility, B2 fasteners are not recommended for use between 1000¡ãF and 1600¡ãF.

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.

Hastelloy B-2 is a nickel-base wrought alloy with excellent resistance to hydrochloric acid at all concentrations and temperatures.

HASTELLOY G-30 alloy is a high-chromium nickel-based alloy that exhibits corrosion resistance superior to most other nickel- and iron-based alloys in commercial phosphoric acid and in many complex environments containing highly oxidizing acids such as nitric/hydrochloric acid, Nitric/hydrofluoric and sulfuric acid. The resistance of G-30 alloy to the formation of grain boundary precipitates in the heat affected zone makes it suitable for the as-welded condition in most chemical processing applications.

These Hastelloy C276 contain a mixture of molybdenum, nickel and chromium species. Like other nickel alloys, it is ductile, easy to form and weld, and has excellent resistance to stress corrosion cracking (a form of easily degradable austenitic stainless steel) in chloride-containing solutions. Due to its high chromium and molybdenum content, it is resistant to oxidizing and non-oxidizing acids and exhibits excellent resistance to pitting and crevice corrosion in the presence of chlorides and other halides.

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.