Hastelloy B2 pipe bend EN 10204 3.1 ASME B16.9 Buttweld Fittings

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.

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.

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

Alloy C-276 also has excellent resistance to pitting, stress-corrosion cracking and oxidizing atmospheres up to 1900¡ãF. Alloy C-276 has exceptional resistance to a wide variety of chemical environments.

HASTELLOY X pipe bend also resists carburization and nitriding, two common conditions which often lead to early failure in high-temperature alloys. After 100 hours in petroleum coke, four other materials were completely penetrated by carburization and whereas.

Machining of Hastelloy UNS N10276 polished plates is best done in the annealed condition. Since this particular alloy grade is prone to work hardening, only low cutting speeds are required.

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 B3 Threaded Flange (UNS N10675) has great resistance to knife ¨C line and heat ¨C affected zone attack. Hastelloy B3 Slip On Flange has a special chemistry designed to achieve greater thermal stability than B-2 alloy, resulting in easier fabrication. Hastelloy B3 Spectacle Blind Flanges have good creep and oxidation resistance.

Hastelloy C22 Spectacle Blind Flanges is also in a wide variety of hazardous waste management technologies where high corrosion ¨C resistance of critical equipment is required for reliability, safety, and cost effectiveness / reduced maintenance.

Hastelloy G-30 is commonly used for providing excellent resistance to chemical conditions.
It offers resistance to nitric acid, phosphoric acid, hydrochloric acid and hydrofluoric acid.
Corrosion resistance properties are also retained even in welded form. High ductility. It is
used in chemical treatment plants, agitator blades, nuclear plants etc.

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

Hastelloy tubing is suitable for applications in the chemical processing, pharmaceutical, agricultural, food, petrochemical and power industries. Hastelloy piping is often specified for highly corrosive industrial applications and is often used in processes where chloride is a component.

Like many other nickel alloys, it is ductile and easy to form and weld. This alloy is used in most industrial environments where corrosive chemical environments exist and other alloys fail.

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

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

HASTELLOY C276 is a Nickel-chromium-molybdenum wrought alloy that is considered the most versatile corrosion resistant alloy available. 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. Alloy C-276 also has excellent resistance to pitting, stress-corrosion cracking and oxidizing atmospheres up to 1900¡ãF. Alloy C-276 has exceptional resistance to a wide variety of chemical environments.

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.

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.

Alloy X pipe bend specimens showed no carburization at all. Of ten materials evaluated in an atmosphere of hydrogen, nitrogen and ammonia at 1100 Deg. F. and 25,00 psi for 64 days, Alloy X had a nitride case less than one-fourth as thick as the closest competitive material without intergranular attack.

Nickel alloys are some of the most useful materials for manufacturing technically superior pipes and tubes for industrial applications. Their inherent properties make them viable for a wide range of uses. Nickel alloys are exceptionally corrosion resistant and can be used in high-temperature environments.

Alloy B2 should not be used at temperatures between 1000¡ãF and 1600¡ãF as the alloy forms secondary phases that could decrease the ductility of the material.

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.

Alloy B-2 has poor corrosion resistance to oxidizing environments, therefore, it is not recommended for use in oxidizing media or in the presence of iron or copper salts, which may cause rapid premature corrosion failure.

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.

Pipe or tube is bent using a combination of dies and other various components working in a rotary action.

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

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.

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.

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.

Hastelloy C276 grade round bars can be used in FGD systems due to their excellent resistance to sulfur-containing compounds and chloride ions encountered in most scrubbers. Alloy C276 Hastelloy bar also has excellent resistance to localized corrosion such as pitting, and the alloy is resistant to stress-related corrosion cracking. Hastelloy C276 N10276 Bright Bar is also one of the few materials that can withstand the corrosive effects of chlorine in the form of wet chlorine gas, hypochlorite and chlorine dioxide.