Hastelloy C4 Project Application Scenarios

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.

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 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.

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

The corrosion resistance property of the alloy is credited to the addition of both Molybdenum and nickel.

Hastelloy C22 threaded flanges have the best weldability.

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.

The flange is second most used joining method after welding. Flanges are used when joints need dismantling. It provides flexbility for maintenance. Flange connects the pipe with various equiment and valves. Breakup flanges are adde din the pipeline system if regular maintenance in required during plant operation.
A flanged joint is composed of three separate and independent although interrelated components; the flanges, the gaskets, and the bolting; which are assembled by yet another influence, the fitter. Special controls ae required in the selection and application of all these elements to attain a joint, which has acceotable leak tightness.

Hastelloy C22 bar contains a high amount of nickel-molybdenum-chromium superalloy as well as tungsten and is designed to provide excellent corrosion resistance in a wide range of harsh environments. It is very resistant to corrosion in immersion environments and is used for chemical applications in the as-welded state.

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

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.

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.

While fitting and sizing bent pipes might seem complex at first, a basic understanding of the measurements used make matching them to your existing system or integrating them into a new design straightforward.

UNS N10665 or W.Nr. 2.4617, Hastelloy B2 (also known as “Alloy B2”), is a solid solution reinforced Ni Mori with low additions of carbon, silicon and iron. It can be used to reduce chemical environment and chemical processing industry. However, Hastelloy B2 should not be used in temperatures from 1000¡ãF to 1600¡ãF and should not be used in oxidizing media.

Hastelloy fasteners can be used in applications involving a wide range of media, including reducing acids and oxidizing agents. As the most versatile alloy c276 fastener, it is most commonly used for bolting of all Hastelloy grade fasteners.

Alloy 22 (UNS N06022) is the most versatile Nickel Chromium Molybdenum Tungsten alloy with controlled Iron. Due to Alloy 22’s content this alloy exhibits excellent resistance to both oxidising and reducing acid environments as well as those containing mixed acids.

Our Hastelloy B2 Ring Joint Type Flanges is not recommended for use in the presence of ferric or cupric salts as these salts may cause rapid corrosion failure. Ferric or cupric salts of these Hastelloy B2 Nippo Flanges may perhaps develop when hydrochloric acid comes in contact with iron or copper.

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.

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.

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.

Hastelloy C22 Slip On Flanges (UNS N06022) is used in Chlorination systems, Nuclear fuel reprocessing, Pickling systems, and more.

Hastelloy C276 Sheets, Plates and Coils (also referred as WNR 2.4819) that are actually manufactured from High Quality of Standard Raw Materials and are designed as per with national and international standards.

Hastelloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking.s. It is available in the form of plates,
sheets, strips, billets, bars, wires, pipes, tubes, and covered electrodes.

These have the advantage of nickel and molybdenum providing resistance against the most reducing environments. The oxidation resistance is also high in these materials due to the addition of the chromium content.

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.

Forgings are made by forcing materials into customized shapes either by the force of a falling ram upon an anvil or by a die press enclosing a piece of metal and squeeze-forming the part. Forging is a manufacturing process involving the shaping of metal using localized compressive forces.

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.

Hastelloy C276 low carbon content minimizes carbide precipitation during welding to maintain corrosion resistance of welded structures. This nickel alloy resists the formation of grain boundary deposits in the weld heat-affected zone, making it suitable for most chemical process applications in the as-welded state.
Type Seamless Pipe Seamless Tube
Welded Pipe Welded Tube SAW LSAW ERW EFW
Beveled End, Plain End
Size OD: 1/2″ ~48″
Thickness: SCH5~SCHXXS
Length As per your requirement.
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.24

Hastelloy C276 sheet and plate in wear resistant stainless steel. It provides excellent resistance to stress corrosion cracking in very high temperature environments; its high tensile strength provides extreme thermal stability.

The primary alloy base materials for Hastelloy C276 include metals such as nickel, molybdenum and chromium. In addition to these three metals, Hastelloy C276 fasteners also have tungsten added. It is well known that the addition of tungsten to superalloys can improve the corrosion resistance of alloys in various harsh environments. Hastelloy C-276 alloy has excellent resistance to a variety of chemical process environments, including strong oxidizing agents such as ferric and cupric chlorides, hot fouling media (organic and inorganic), chlorine, formic and acetic acid, acetic anhydride , seawater and brine solutions.

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.

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

Hastelloy C-276 bushings are also used in sour gas wells, pulp and paper production, waste disposal, pharmaceutical and food processing equipment. Other important properties of this alloy Nickel Alloy C-276 and Hastelloy C-276 include its resistance to oxidizing agents.

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.