ASTM A516 Grade 70 is a specification for carbon steel plates designed for use in pressure vessels and boilers. This grade is commonly used in the fabrication of welded pressure vessels and industrial boilers at moderate and lower-temperature service conditions.
Key features of ASTM A516 Grade 70 steel plates for boilers include:
High Strength: A516 Grade 70 offers excellent tensile strength, with a minimum yield strength of 38,000 psi (260 MPa) and a minimum tensile strength of 70,000 to 90,000 psi (485-620 MPa).
Good Weldability: The carbon content and low alloying elements in A516 Grade 70 make it easily weldable, allowing for efficient fabrication and construction of boilers and pressure vessels.
Elevated Temperature Resistance: A516 Grade 70 exhibits excellent resistance to high temperatures, making it suitable for applications involving hot liquids or gases.
Notch Toughness: These steel plates possess good notch toughness, which refers to their ability to absorb energy in the presence of a flaw or notch without fracture. This property is crucial for maintaining the integrity of pressure vessels and boilers under demanding conditions.
The specific requirements and additional testing can be specified depending on the application and customer needs. Compliance with the relevant ASTM A516/A516M standard and proper quality assurance practices are essential for ensuring the suitability and performance of these steel plates in boiler and pressure vessel applications.
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