Hast Alloy X Sheet Quality Inspection Scenario

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.

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.

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 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.

Alloy B2 also has excellent resistance to pitting and stress corrosion cracking.

C22 nickel alloy fasteners offer better overall corrosion resistance than its sister alloy Hastelloy C-276, and more specifically, it offers better protection when used in certain saturated wet chlorine environments. Additionally, its high chromium content provides C22 fasteners with better resistance to oxidative media than C276. This makes it excellent resistance to chloride-induced pitting, although in most cases C-276 fasteners are a more cost-effective option due to their availability, especially in sizes smaller than 1/ 2″ case.

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

Hastelloy C276 plates are referred to as excessive-alloy steels, which have superb corrosion resistance in assessment with different steels as they include greater chromium.

ASTM B619 welded pipe for the pharmaceutical industry has good corrosion resistance, especially to high purity water. And they also show good resistance to corrosion by buffer solutions used to prepare pharmaceuticals if ASTM B619 UNS N10276 is also exposed to cleaning supplies.

Alloy C276 plate is a high strength grade designed to be thicker than 6mm. The panels have a minimum tensile strength of 601mpa and a minimum yield strength of 204.8mpa. C276 composite panels are made by bonding two or metals in place. Meanwhile, Alloy C276 is resistant to oxidation at 1800¡ãF in the open air. However, alloy C276 is generally not recommended for high temperature service. The high molybdenum content makes alloy C276 prone to catastrophic oxidation under stagnant conditions, such as under solid deposits.

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 C22 socket weld flanges are used in the chemical process industry in equipment like flue gas scrubbers, chlorine systems, sulfur dioxide scrubbers, pulp, and paper bleach plants, pickling systems.

This nickel alloy also offers optimum resistance to environments where reducing and oxidizing conditions are encountered in process streams. This is beneficial in multi- purpose plants where such ¡°upset¡± conditions occur frequently.

Hastelloy C-276 has a higher molybdenum content.

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%.

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

Hastelloy B2 is a nickel-molybdenum alloy with significant resistance to reducing environments such as hydrogen chloride gas and sulfuric, acetic and phosphoric acids. Hastelloy B2 is resistant to pure sulfuric acid and many non-oxidizing acids. This alloy should not be used in the presence of oxidative contaminants in oxidizing or reducing media. Premature failure may occur if Alloy B2 is used in the presence of iron or copper in systems containing hydrochloric acid.

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

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.

C-276 alloy is normally solution heat-treated at 2050¡ãF (1121¡ãC) and rapid quenched. If possible, parts which have been hot-formed should be solution heat-treated prior to final fabrication or installation.

Hastelloy Cold Drawn Tubes and Tubes – Offers good machinability, higher strength and constant degrees of freedom compared to hot rolled and cold drawn tubes. These pipes work more efficiently because their microstructure is very constant and also have increased physical properties.

Hastelloy offer very good resistance to strong reducing and moderately oxidizing corrosive acids, as well excellent stress corrosion cracking resistance and resistance to localized attack.

The flanges are produced through different techniques as the ASTM B564 Hastelloy B2 Threaded Flanges, screwed flanges, forged flanges and plate flanges. The threaded flanges are used with threaded pipes and the female threaded flanges connect to the male threaded pipe ends.

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

Hastelloy can be used with all common welding methods, but oxyacetylene and submerged arc processes are not recommended when the manufactured product is intended for corrosion service.

2.4819 has very good resistance to pitting, crevice corrosion and stress corrosion cracking, C276 is worth mentioning for its excellent resistance to aggressive media under oxidizing and reducing conditions.

Hastelloy C276 Flanges are made up of the nickel chromium molybdenum alloy that is called hastelloy. The composition includes 50.99% nickel, 14.5% chromium, 15% molybdenum and carbon, manganese, silicon, sulfur, cobalt, iron and phosphorus in it.

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.

These Hastelloy Alloy C276 Forgings is used for dissimilar welding applications including other nickel ¨C chromium ¨C molybdenum alloys and stainless steels, and for weld overlay or cladding of steels. The alloy is used in flue gas desulfurization systems. It has excellent resistance to pitting and stress corrosion cracking, and resists wet chlorine gas, hypochlorite and chlorine dioxide. The alloy is also resistant to seawater and brine solutions.

Hastelloy C276 clad plate is a chromium, nickel, iron, and molybdenum grade that is solid-solution strengthened.

It is also one of the few materials that withstands the corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide.

The ASTM B622 Hastelloy B2 Seamless Pipe especially is known to exhibit excellent resistance to corrosion in aggressive reducing media such as hydrochloric acid.

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.

Like other nickel alloys, HASTELLOY C-22 alloy is fairly ductile, has excellent weldability, and is easily fabricated into industrial parts. It is available in sheet, sheet, strip, billet, bar, wire, tube and tube. Typical applications may include: reactors, heat exchangers and columns.