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While Monel 400 offers superior resistance to SCC in aerated acid, it is not adequate to prevent damage. Monel K500 and 400 grades are exposed to corrosive conditions in vapor phase of hydrofluoric acid in the presence of oxygen. Studies emphasize the need to eliminate air in the vapor phase above the acid. As HF … Continue reading Which alloy should be used in oil refinery processes for better performance

Since when the man has started exploring petroleum resources, Heanjia has been at the lead of materials quality. We understand the need of design engineers for components for oil field conditions. Capital and service costs related with major resource developments are very high. You need the good quality materials for your service. Our materials function, … Continue reading Nickel based alloys for challenging oil and gas fields

Nickel base alloys are major component materials used in steam generators and in various structural compounds of pressurized water reactors and boiling water reactors. They are exposed to a variety of severely corrosive conditions that occur in nuclear power plants as stated following: General corrosion This corrosion results into emission of metallic ions in the … Continue reading Performance of Nickel alloy Inconel grades in oxidizing environments

Chemical processing units are engaged in a battle against corrosion to ensure that processes operate safely and consistently. Corrosion vigorously affects different types of materials ranging from metals to even plastics. Various processes demand a variety of materials to secure the material from corrosion and its ensuing issues. Different types of corrosion- susceptible equipment, like … Continue reading High nickel alloys Inconel and Hastelloy bars for high temperature corrosion

The strength level in age hardened materials is becoming widely important, specifically for offshore applications that are exploiting high pressure deep well reserves, where weight factors can significantly affect the economic feasibility of the project. The material selection for down hole and wellhead equipment like hangers, sub surface safety valves, pumps etc should be made … Continue reading Inconel alloys for application in offshore plant conditions for economical service

Nickel based alloys are mainly known for their resistance to aqueous corrosion however they are also commonly used at the elevated temperatures when carbon and other low alloyed steels do not offer suitable corrosion resistance and strength. They are used in applications which demand high temperature oxidation resistance or elevated temperature strength. Construction material is … Continue reading High temperature Inconel alloys for heat and oxidation resistance

Hydrogen embrittlement is a commonly occurred problem that has been experienced for several years. Recently even new and unexpected type of hydrogen embrittlement problem is seen in aerospace industry. This type of corrosion occurs when an essentially hydrogen free material is mechanically evaluated in gaseous hydrogen. It is well agreed among investigators that molecular hydrogen … Continue reading Occurrence of Hydrogen Embrittlement and how to prevent it

Advanced aircraft applications demand more reliable materials due to widely innovative technology. Designs are based on fuel efficiency and consistency. In addition to commercial uses, military based defense operations widely rely on the extreme performance of the aircraft engines. To receive the maximum performance at economical price, aerospace applications involve the use of components made … Continue reading Enhancing mechanical properties of Inconel 718 for aerospace applications

Carbon steels can easily deal with gaseous chlorine at low temperatures and in the absence of moisture. But if water is present, chlorine becomes vigorously corrosive to several metals. In the same manner, dry hydrogen chloride is not corrosive to various metals. As soon as it is dissolved in water HCl is developed and it … Continue reading How do different alloys perform in dry and moist chlorine media?

The influence of hydrochloric acid concentration on the corrosion rates of Monel 400 and nickel in air-free and air-saturated solutions at 30oC. It will be noted that the corrosion rates of Monel 400 and nickel at room temperature are about the same 10% acid concentration. In this concentration limit, the corrosion rates of both materials … Continue reading Influence of different HCl concentrations on Monel 400 and Nickel