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Alloy 20 flanges are essential components in piping systems, prized for their exceptional corrosion resistance in acidic environments. Also known as Carpenter 20, this nickel-iron-chromium alloy, with additions of copper and molybdenum, offers superb protection against sulfuric and phosphoric acids and other aggressive chemicals. Widely used in chemical processing, pharmaceuticals, and food industries, Alloy 20 combines excellent mechanical properties with durability, ensuring reliable performance in demanding applications that require long-term corrosion protection.
Specifications : ASTM B462 / ASME SB462
Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size : 1/2″NB TO 60″NB
Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Grade | C | Mn | Si | S | Cu | Ni | Cr | Fe | Mo | P |
Alloy 20 | 0.07 max | 2.00 max | 1.00 max | 0.035 max | 3.00 – 4.00 | 32.00 – 38.00 | 19.00 – 21.00 | 29.85 min* | 2.00 – 3.00 | 0.045 max |
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
Alloy 20 | 8.1 g/cm3 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 | Psi – 35,000, MPa – 241 | 30 % |
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We offer These Alloy 20 Flanges as per DIN, ISO, JIS or ANSI Standard.
Since Alloy 20 flanges have excellent mechanical qualities and are resistant to wear corrosion, and high temperatures, they are widely used in various industries. These flanges are widely used in the oil and gas, petrochemical, power generation, and aerospace industries. They play an important part in joining equipment, valves, and pipe systems. They are perfect for applications exposed to severe operating conditions, such as high temperatures, high pressures, and corrosive environments, because of their exceptional strength, toughness, and wear resistance.
Yes, Alloy 20 flanges are recyclable. They are typically made from a combination of nickel, chromium, and iron, valuable metals that can be separated and reused through recycling. This makes Alloy 20 flanges a sustainable choice for applications where recyclability is considered.
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