ASTM B408 Alloy 800 Bolts are high-strength and corrosion-resistant fasteners in countless applications across multiple industries. They are composed of nickel-iron-chromium alloys that are capable of withstanding extreme temperatures. If you’re looking for high-quality and reliable fasteners for your project, alloy 800 bolts are an excellent choice.
What are ASTM B408 Alloy 800 Bolts?
ASTM B408 Alloy 800 Bolts are a grade of nickel-based bolts made from an alloy containing main components of iron, chromium and nickel. This high-strength bolt material has many uses due to its excellent corrosion resistance in low and high-temperature applications. It also fastens materials like stainless steel, super alloys, titanium and aluminium. The ASTM B408 Alloy 800 Bolts have good strength properties at elevated temperatures up to 1400°F (760°C), making them suitable for use in flanges, valves or other pressure-containing parts exposed to corrosive environments. These bolts are cost-effective compared with other speciality bolting materials due to their combination of superior corrosion resistance, outstanding tensile strength and durability over time.
You Need to Know About ASTM B408 Alloy 800 Bolts
Composition and Properties: ASTM B408 alloy 800 is composed of nickel, iron, and chromium. It has excellent corrosion resistance and chemical stability in high-temperature environments. It is also resistant to oxidation and carburization. These properties make it an ideal material for bolts and other fasteners used in high-temperature and corrosive environments.
ASTM B408 alloy 800 is composed of nickel, iron, and chromium. It has excellent corrosion resistance and chemical stability in high-temperature environments. It is also resistant to oxidation and carburization. These properties make it an ideal material for bolts and other fasteners used in high-temperature and corrosive environments.
Mechanical Properties: The mechanical properties of Alloy 800 Bolts depend on the heat treatment process that is used. For example, bolts that have been solution heat treated and aged have a yield strength of 75 ksi (520 MPa) and an ultimate tensile strength of 100 ksi (690 MPa).
Heat Treatment: Alloy 800 Bolts can be heat treated to improve their mechanical properties. The most common heat treatment process is solution heat treatment, which involves heating the bolts to a temperature between 1900°F (1038°C) and 2150°F (1177°C) before quenching them in water or air cooling them. The bolts can also be aged at a temperature between 950°F (510°C) and 1100°F (593°C).
Tensile Strength: The tensile strength of Alloy 800 bolts is 120,000 psi. This high tensile strength makes the bolts ideal for use in applications with high loads.
Yield Strength: The yield strength of Alloy 800 bolts is 95,000 psi. This high yield strength makes the bolts ideal for use in applications with high loads.
Elongation: The elongation of Alloy 800 bolts is 30%. This high elongation allows the bolts to deform under load without breaking.
Hardness: The hardness of Alloy 800 bolts is Rockwell C30. This hardness makes the bolts resistant to wear and tear.
Applications of ASTM B408 Alloy 800 Bolts
They are used in various applications, including chemical processing, furnace components, heat exchangers, power generation, and oil and gas production. They are often used in extreme environments with high temperatures and aggressive chemicals. These bolts are also used in electrical and electronic industries due to their electrical conductivities.
Manufacturing and Testing
They are manufactured to strict standards to ensure their strength and integrity. The manufacturing process starts with melting the alloy to produce the required composition. The resulting alloy is then processed into different shapes and sizes. The bolts are then tested for strength, corrosion resistance, and other properties to meet the required standards.
Advantages of ASTM B408 Alloy 800 Bolts
They have numerous advantages over other bolts. Firstly, they are highly resistant to corrosion and can withstand extreme temperatures. They are also strong and durable, making them ideal for use in harsh environments. Moreover, these bolts are readily available in various sizes and shapes, making them suitable for diverse applications.
Maintenance
While ASTM B408 alloy 800 bolts are highly durable, they still need regular maintenance to ensure their longevity. Regular inspections and cleaning are necessary to prevent corrosion, which can weaken the bolts over time. Lubrication also keeps them in good condition while reducing friction during use.
Conclusion
In conclusion, ASTM B408 Alloy 800 bolts are necessary fasteners in harsh environments with high temperatures and corrosive materials. Their excellent properties, easy manufacture, and easy maintenance make them ideal for use in numerous industrial applications. If you need high-strength and corrosion-resistant bolts for your project, ASTM B408 alloy 800 is an excellent choice.
