Pipe flanges are critical components used to connect pipes, valves, pumps, and other equipment in piping systems. They are available in various materials, including carbon steel, stainless steel, and alloy steel, each offering distinct properties for different applications. Below is an introduction to these flange types, including their size ranges, manufacturing standards, and key features.
Q1: What are the main materials used for industrial flanges?
A: Industrial flanges are primarily manufactured from Carbon Steel (ASTM A105, A350), Stainless Steel (304, 316L, Duplex), and Alloy Steel (Cr-Mo and Nickel Alloys) depending on the environment and temperature requirements.
Q2: Which flange type is best for high-pressure systems?
A: The Weld Neck (WN) flange is the preferred choice for high-pressure and critical systems due to its high integrity and stress distribution properties.
Q3: What pressure ratings do you provide?
A: Our flanges follow international standards including ASME Class 150 to Class 2500 and European EN 1092-1 ratings from PN 2.5 to PN 400.
Q4: Are your flanges compliant with NACE standards?
A: Yes, we provide Alloy Steel flanges that meet NACE MR0175 requirements for sour service in oil and gas applications.
Q5: What is the difference between forged and cast flanges?
A: Forged flanges (ASTM A105/A182) offer superior mechanical properties and strength compared to cast flanges, making them more suitable for high-temperature and high-pressure services.
Q6: Do you offer large diameter flanges?
A: Yes, we provide standard sizes up to 24" (ASME B16.5) and large-diameter flanges up to 60" and above following ASME B16.47 Series A & B.
EZ STEEL
