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Engineering Comparison of ASTM A105 Flange and ASTM A350 LF2 Flanges for Industrial Piping Mumbai
- Location: Mumbai, Maharashtra, India
Carbon steel flanges continue to be key elements in pressure piping systems of petrochemical and power plants. Among this type, ASTM A105 Flange stands out as the most commonly used one for forged fittings made according to ASME B16.5 and B16.47 dimensions. It is commonly Class 150, 300, 600, 900, 1500, and 2500 rated and sized from 1/2 inch to 48 inches. The strength of the material is about 485 MPa in tensile testing, it is easily machinable, thus it can work in moderately elevated temperatures of refinery and utility services lines.
Sharp limits for chemical composition of carbon, manganese, phosphorus, sulfur, silicon, copper, nickel, chromium, molybdenum, and vanadium are set to conform with ASTM and ASME standards. In cities with heavy industry like Riyadh, Jeddah, and Dammam, people in charge of procurement continuously check pressure temperature charts, mill test certificates, and heat treatment records before they finalize the bulk orders that are placed via platforms such as pipingmaterial.sa where certified suppliers and real buyers communicate. Grain size, fracture behavior, and durability of pipelines depend on the combination of normalizing and forging.
However, Low-temperature operation normally implies doing more tests to confirm the notch toughness and impact values at subzero temperatures. For such works, ASTM A350 LF2 Flanges are often the first choice by the majority of people. Especially those at Class 300 to 900 ratings that are used in offshore modules, LNG facilities, and chilled process systems. Manufactured with Grade LF2 and subjected to the mandatory Charpy V-notch test, these flanges preserve strength and at the same time resist brittle fracture, thus they can be used in critical elements of Saudi Arabia's new energy infrastructure.
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