A105 Carbon Steel Spectacle Blind Flanges Manufacturer, Supplier, Exporter & Stockist in india

A105 Carbon Steel Spectacle Blind Flanges are essential components in piping systems, particularly in applications where temporary or permanent isolation of a pipeline is required. These flanges are manufactured using A105 carbon steel, which is a widely used material in the industry due to its favorable combination of strength and corrosion resistance. The A105 designation refers to a specific ASTM standard (ASTM A105) that outlines the chemical composition and mechanical properties of carbon steel forgings, including flanges. The typical chemical composition includes carbon (C) in the range of 0.35% to 0.45%, manganese (Mn) between 0.60% and 1.05%, and low levels of phosphorus (P) and sulfur (S) to ensure good weldability and machinability. Silicon (Si), copper (Cu), nickel (Ni), chromium (Cr), and molybdenum (Mo) are also present in small amounts.

These spectacle blind flanges are designed to fit between two pipe flanges, acting as a solid barrier to isolate sections of a pipeline when required. The "spectacle" design means that they have a distinctive shape, resembling a pair of eyeglasses, with one solid metal "blind" plate and one full-opening plate. When installed in the closed position, the blind plate prevents the flow of fluids through the pipeline, providing an effective means of isolation. They are often used during maintenance, repairs, or in situations where temporary isolation is necessary. A105 Carbon Steel Spectacle Blind Flanges come in various sizes, ranging from 1/2 inch to 64 inches in nominal size, and are available in different class ratings (e.g., 150, 300, 600) to accommodate various pressure and temperature requirements. The exact dimensions and pressure ratings can vary depending on the specific standard or specification used for manufacturing, such as ASME B16.5, ASME B16.47, MSS SP-44, or API 6A.