Shawn Flanges, located in Houston, USA, is a reliable manufacturer and supplier of Alloy 20 Orifice Flanges, specifically crafted for flow measurement in corrosive settings. Also referred to as Carpenter 20, this nickel-iron-chromium austenitic alloy is engineered to resist sulfuric acid, pitting, crevice corrosion, and chloride stress corrosion cracking. These orifice flanges are typically paired with orifice plates to accurately gauge flow rates in industries like chemical processing, marine, and pharmaceuticals. Shawn Flanges prides itself on delivering precision-engineered flanges that comply with ASME B16.36, ASTM B462, and other international standards for top-notch performance and accuracy.
Alloy 20 Orifice Flanges from Shawn Flanges are composed of 32–38% nickel, 19–21% chromium, 3–4% copper, 2–3% molybdenum, along with trace amounts of niobium for stabilization. These flanges boast a tensile strength of around 620 MPa, a yield strength of at least 275 MPa, and impressive elongation of 30% or more. Known for their outstanding resistance to sulfuric acid, Alloy 20’s stabilized composition helps reduce the risk of intergranular corrosion post-welding. They maintain their mechanical integrity even at moderate to high temperatures, providing both strength and corrosion resistance in demanding chemical environments.
Alloy 20 Orifice Flanges Specifications: ASTM B462/ ASME SB462
Alloy 20 Orifice Flanges Dimensions: ANSI/ASME B16.36, Series A & B, BS4504, BS 10, EN-1092, DIN, etc.
Alloy 20 Orifice Flanges Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Alloy 20 Orifice Flanges Size: 1/2″ (15 NB) to 48″ (1200NB)
Alloy 20 Orifice Flanges Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Alloy 20 Orifice Flange Face Type : Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Shawn Flanges, a leading supplier in Houston, USA, offers an extensive selection of Alloy 20 Orifice Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
Shawn Flanges’ Alloy 20 Orifice Flanges find extensive use in chemical and petrochemical facilities, especially in systems that deal with sulfuric, nitric, and phosphoric acids. These flanges play a vital role in flow metering, enabling the monitoring and control of fluid flow in acid production, pharmaceutical processing, food and beverage sectors, and marine applications. Their resistance to chloride-induced stress corrosion makes them ideal for piping systems in coastal and offshore settings. When used with orifice plates, they deliver accurate pressure drop measurements. Shawn Flanges guarantees that each product meets the highest standards of quality and performance.
| Grade | DIN | UNS | EN | AFNOR |
| Alloy 20 | 2.4660 | N08020 | NiCr20CuMo | Z2NCUD31-20AZ |
Yes, we offer custom sizes for Alloy 20 Orifice Flanges to meet specific project needs. Our team at Shawn Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@shawnflanges.us.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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