BQ 516 Gr 70 Carbon Steel Boiler Plate

"BQ 516 Gr 70" refers to a specific type of carbon steel boiler plate that meets certain standards and specifications. Here's a breakdown of what this designation typically means:

1. BQ: This stands for Boiler Quality. Boiler quality steel plates are specialized carbon steel plates that are primarily used in pressure vessel applications for moderate to lower temperature service.

2. 516: This likely refers to ASTM A516, which is a standard specification for pressure vessel plates, carbon steel, for moderate- and lower-temperature service. ASTM A516 is widely used by designers and engineers in many market sectors for boiler and pressure vessel applications.

3. Gr 70: This is the grade designation of the carbon steel plate. ASTM A516 Gr 70 is one of the most popular boiler and pressure vessel grade of steel plates. It is used primarily in welded pressure vessels where notch toughness is important. It offers excellent notch toughness and is typically found in moderate and lower temperature applications.

Key characteristics of BQ 516 Gr 70 Carbon Steel Boiler Plate:

• High Strength: ASTM A516 Gr 70 has a minimum tensile strength of 70,000 psi (485 MPa) and a minimum yield strength of 38,000 psi (260 MPa).
• Good Weldability: It is readily weldable and suitable for fabrication operations such as welding, bending, and forming.
• Notch Toughness: This grade has excellent notch toughness which is important in applications where the plates are subjected to impact.

In summary, BQ 516 Gr 70 Carbon Steel Boiler Plate refers to a high-quality carbon steel plate used in pressure vessel applications where moderate to lower temperature service is required. It conforms to ASTM A516 Gr 70 specifications, offering high strength, good weldability, and excellent notch toughness, making it suitable for various industrial applications involving boilers and pressure vessels.