Hastelloy C276 butt welded elbows resistant to oxidation and stress-corrosion cracking

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.

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.

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 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.

The use of refined technology and the modern tool has helped the producer to make the superior quality of pipes.

The 2.4819 Alloy C276 Flat Plate is typically used in areas with extreme conditions.

Alloy C276 is an alloy that excels in a range of corrosive environments. It is resistant to strong oxidizing chlorides, reducing acids, hot sea water and saline solutions.

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.

Alloy X pipe bend is one of the most widely used nickel base superalloys for gas turbine engine components.

Hastelloy B2 Seamless Pipes is a solid solution strengthened, nickel ¨C molybdenum alloy, typically used in extreme reducing conditions.

Today, Alloy B2 with restricted chemistry can be used in the welded condition and is less susceptible to SCC under many conditions. As always, care must taken in selecting the right alloy for the desired application.

Nickel Alloy C-276 and Hastelloy C-276 can be welded by all common welding methods (oxyacetylene is not recommended).

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.

Alloy C276 is a nickel, chromium and molybdenum alloy. Hastelloy C276 is designed for excellent corrosion and oxidation resistance in a variety of environments. These alloys also show resistance to pitting and crevice corrosion.

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 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.

It has great resistance to stress-corrosion cracking and pitting. Hastelloy B-2? also features hydrochloric acid resistance at all concentrations and temperatures.

Applications in the chemical process industry involving sulfuric, phosphoric, hydrochloric and acetic acid.

Alloy B2 pipe bend provides resistance to pure sulfuric acid and a number of non-oxidizing acids.

Exposures like this are regularly experienced during heat treatments that are linked with fabrication.

Hastelloy C22 weld neck flanges have the best resistance to pitting and stress corrosion cracking.

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.

NAS NW276 is a Ni Cr Mo alloy with excellent corrosion resistance in both oxidizing and reducing atmospheres. In this alloy, carbide precipitation in the heat affected zone (HAZ) is suppressed and corrosion resistance is improved by reducing the contents of C and Si.

Alloy C22 is one of the most corrosion-resistant alloys available, even outperforming C276 and 625. It is resistant to almost all reducing and oxidizing environments, including strong oxidizers, seawater, and organic acids.

La aleacion tambien es resistente a soluciones y compuestos de cloruro, muchos de los cuales son altamente corrosivos. Por ejemplo, los reductores de aleacion de niquel C276 son resistentes no solo a los medios organicos e inorganicos termicamente contaminados, sino tambien a los cloruros ferricos y c¨²pricos, asi como al cloro, el agua de mar y la salmuera.

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 high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media.

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 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.

Brushing these boards with stainless steel wire after the welding operation usually removes the hot color and likewise creates surface areas that do not require additional pickling.

Hastelloy’s resistance to sulfuric acid makes it a common choice for protection from hydrogen sulfide (H2S), more commonly known as?sour gas.

ASTM B619 UNS N10276 Alloy C276 Tube covers 2 classes under this specification. In class 1, the Hastelloy C276 Tube is furnished in an as welded and solution annealed condition or these tubes could be welded along with being sized and solution annealed.

Hastelloy C276 is a nickel-chromium-molybdenum wrought alloy considered to be the most versatile corrosion-resistant alloy known. This alloy is resistant to grain boundary deposits in the weld heat affected zone, making it suitable for most chemical process applications in the as-welded condition. Meanwhile, Hastelloy C276 fasteners are considered to be the most versatile and high-strength fasteners, finding their suitability in many industrial applications. These are nickel-molybdenum-chromium forged alloy fasteners that perform well in a variety of harsh environments. The presence of molybdenum and chromium content makes nickel alloy steel more resistant to crevice and pitting corrosion. Hastelloy c276 bolts are the highest quality bolts in the alloy series. These are corrosion resistant, which is important for the industries in which Hastelloy is best suited.

Hastelloy C-276 fasteners and other products in the Hastelloy family have excellent resistance to corrosion and oxidizing and reducing chemicals. Due to its adaptability, Hastelloy C-276 alloy can be used in problem areas and is more likely to occur in process areas. 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.