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ASTM B168 alloy plates have various types that differ in composition, thickness, and application. Each type is tailored for specific uses, often under high-temperature or corrosive environments. Below are some common types of alloy plates specified by ASTM B168 standards.
Alloy Plate ASTM B168 C276
ASTM B168 C276 plates are made of the C276 alloy, one of the most renowned materials for the chemical process industry. It features exceptional resistance to pitting, stress corrosion cracking, and oxidation. Also, it withstands hydrochloric acid, sulfuric acid, and other hostile media. This plate's versatile nature enables it to be used in chemical processing, pollution control, and pulp and paper manufacturing. Also, it retains strength and flexibility even at elevated temperatures.
Alloy Plate ASTM B168 C22
ASTM B168 C22 plate is constructed from the C22 alloy, noted for providing a combination of strength, weldability, and corrosion resistance. It resists oxidation, even in seawater and other harsh environments. Its ability to self-repair in corrosive environments makes it ideal for applications where prolonged exposure is anticipated. Users value the C22 plate in chemical processing, marine and offshore, and architectural applications.
Alloy Plate ASTM B168 B825
These plates are typically constructed from nickel-based alloys and are specified for their thickness and temperature or pressure conditions. Also, they are used in continuously serviceable conditions at elevated temperatures. The B825 plates are often employed in oil and gas extraction and petrochemical processing. Here, users frequently need lightweight and yet durable materials that are ideal for extreme conditions.
Alloy Plate ASTM B168 N08800/N08810
These plates are constructed with materials specified for their excellent resistance to high-temperature oxidation and acids. Often, the N08800 and N08810 plates are utilized in power generation and petrochemical industries. In power generation, the structures use heat exchangers and boilers. These plates' high-temperature stability and corrosion resistance make them ideal for these applications.
Alloy Plate ASTM B168 S31254
These plates are made from the S31254 alloy, often referred to as a super duplex stainless steel. It offers exceptional resistance to pitting and crevice corrosion. The epitome of saltwater or chloride-containing environments is found in the fish farming and marine industries. Users favor the S31254 plates in wastewater treatment, chemical processing, and marine constructions.
The ASTM B168 alloy plates are a preferred choice in several industries thanks to their durability and exceptional properties. Primarily, these plates are employed in conditions where resistance to corrosion and extreme temperatures is needed. Below are some of the features that come with these alloy plates.
Corrosion Resistance
Users praise these plates for their unparalleled corrosion resistance. This factor particularly applies to plates made of nickel-based alloys. The plates handle chemical environments like sulfuric and hydrochloric acids, which typically degrade most other metals. This durability makes them suitable for the chemical processing, marine, and oil and gas industries. In these industries, frequent exposure to corrosive elements is a norm.
High-Temperature Performance
The ASTM B168 alloy plates, particularly the N08800 and N08810 variants, maintain their mechanical integrity at elevated temperatures. In power generation, chemical processing, and petrochemicals, where materials must withstand extreme heat, these plates are critical. Also, they prevent oxidation and degradation, which would have otherwise compromised structural stability.
Versatility
These plates cater to a wide range of applications due to their different thicknesses and alloy compositions. Usually, they are found in chemical processing to architecture and marine industries. In these industries, users demand materials that resist extreme environmental conditions. Also, they can be manufactured into various forms, including heat exchangers, pressure vessels, and more.
Fabrication and Welding
Users have no problem fabricating these plates. This is because they allow for easy welding and formability, a notable advantage. For instance, C276 and C22 plates can be readily incorporated into complex structures without loss of quality. To this end, they are favored in industries requiring intricate designs to withstand hostile environments.
Strength and Durability
The B168 alloy plates have metal alloys renowned for their strength and durability. Normally, the plates do not only provide corrosion resistance but also mechanical properties that ensure they can bear heavy loads or stresses. This synergy of strength and resistance is particularly valued in high-stress environments like oil rigs or chemical plants.
Users utilize these plates in many industrial applications, enabling them to thrive in adverse conditions. Specifically, these plates offer unmatched durability when resisting extreme temperatures and chemical environments. Below are some of the common uses of these alloy plates that business owners can target.
Petrochemical Industry
These alloy plates are heavily employed in this industry for constructing heat exchangers, reactors, and pipelines. Most commonly, the B168 plates handle highly corrosive chemicals like sulfuric acid. It is worth noting that the C276 and C22 plates are particularly suited to these tasks due to their superior resistance to a wide range of chemicals. Also, they maintain structural integrity and thus improve process efficiency.
Marine Applications
The B168 plates are usually utilized in shipbuilding, coastal infrastructure, and offshore oil rigs. They resist saltwater and atmospheric corrosion, making them ideal for marine environments. Besides, the S31254 and C22 plates provide extra durability and extend the lifespan of critical components that undergo continual exposure to seawater.
Power Generation
The Nuclear and fossil fuel power facilities utilize these alloy plates in their operations. In such facilities, the plates serve as components in boilers, turbines, and heat exchangers. To say the least, the N08800 and N08810 plates are ideal for these applications. This is due to their capacity to withstand high temperatures while resisting oxidation and corrosion. As a result, the efficiency and safety of the power generation processes are enhanced.
Waste Treatment
People have long used the B168 plates in wastewater treatment facilities. Often, the plates come in handy when dealing with harsh chemical environments found in treatment processes. In chemical plants, for instance, the plates are exposed to a variety of dangerous chemicals. The C276 and C22 plates usually withstand these chemicals, thus ensuring the durability of critical infrastructure.
Aerospace Industry
The ASTM B168 plates are also used in this industry. Specifically, they are useful in components subjected to high temperatures during flight. Take, for instance, the N08800 plate. It maintains its strength and durability at elevated temperatures. This makes it a critical material for components used in high-efficiency engines or critical structural elements.
Selecting the proper ASTM B168 alloy plate involves considering various factors. These factors come in handy because they ensure the right material for a certain application is utilized. Below are the key factors to consider when choosing an alloy plate.
Alloy Composition
Different alloys serve various purposes. For instance, the C276 and C22 alloys are preferred for their stellar resistance to most chemicals and environments. Meanwhile, the N08800 and N08810 alloys are highly esteemed for their ability to handle elevated temperatures. In addition, the S31254 plate offers exceptional durability and is readily usable in saltwater environments.
Corrosion Resistance
Corrosion resistance is an essential factor to consider for clients in the chemical and marine industries. This is because corrosion can come from chemical exposure or seawater. Luckily, the ASTM B168 plates are manufactured with superior corrosion resistance properties. Specifically, those made of C276, C22, and S31254 alloys. Moreover, they can be seamlessly integrated into systems prone to long-term exposure to aggressive chemicals.
Temperature and Pressure Ratings
Clients who handle power generation and aerospace components require plates that can withstand elevated temperatures. The N08800 and N08810 plates, for instance, maintain their properties even at high temperatures. This allows them to be used in critical applications. Besides, pressure ratings are also worth considering. They ensure the plate's thickness is compatible with the application's pressure requirements.
Fabrication and Welding
If clients are likely to require complex shapes or extensive welding, then the fabricability of the material is a must. Some of the ASTM B168 plates are distinguished for their outstanding welding characteristics. This property ensures that they are easily integrated into larger structures without losing the inherent properties that make them ideal for use. The C22 and C276 plates are notable for their ease of fabrication.
Thickness and Mechanical Properties
The B168 alloy plates come in various thicknesses. Each thickness caters to a distinct mechanical property. In cases where high strength is necessary, thicker plates are ideal. Conversely, thinner plates are advantageous for applications requiring flexibility or lighter weight. To gain the most benefit from the selected thickness, always consider the mechanical property requirements of the holder's application.
Petrochemical industry is a major beneficiary of this alloy plate. This is because they deal with chemicals that often corrode other kinds of metals. Also, these plates are useful in the marine industry. Their corrosion-resistance property allows them to withstand the harshness of saltwater.
Yes, these plates can be welded. They are fabricated into complex structures. Establishments normally prefer the C22 and C276 plates for their ease and efficiency in welding.
The N08800 plates are ideal for this high-end industry. They maintain their strength and resistance at elevated temperatures. This property makes them suitable for the rigorous conditions of the aerospace sector.
These plates have exceptional thermal resistance properties. This makes them stand out from the rest. They also improve operational efficiency in power generation and chemical processing, making them critical components.
The S31254 plate is most popular for such applications. This is because it offers exceptional resistance to pitting and crevice corrosion. It also has a blend of corrosion resistance and mechanical strength, making it ideal for saltwater environments.
