Alloy 20 Flanges Manufacturers In India -

Here’s an overview of Alloy 20 Flanges based on the provided information:

Composition:

Alloy 20 (UNS N08020):
- Nickel (Ni): 32 – 38%
- Chromium (Cr): 19 – 21%
- Molybdenum (Mo): 2 – 3%
- Copper (Cu): 3 – 4%
- Iron (Fe): Balance
- Manganese (Mn): 1 – 2%
- Carbon (C): 0.02% max
- Sulfur (S): 0.005% max
- Silicon (Si): 0.7% max
- Phosphorus (P): 0.02% max
- Niobium (Nb): 0.1 – 0.3%

Mechanical Properties:

Density: 8.1 g/cm³
Melting Point: 1443°C (2430°F)
Tensile Strength: Psi – 80,000 (MPa – 551) minimum
Yield Strength (0.2% Offset): Psi – 35,000 (MPa – 241) minimum
Elongation: 30% minimum

Features and Applications:

Corrosion Resistance: Excellent resistance to sulfuric acid and phosphoric acid environments, which makes Alloy 20 Flanges ideal for chemical processing applications, especially in sulfuric acid environments such as in pickling operations.
Cost Efficiency: Compared to high nickel alloys, Alloy 20 offers similar corrosion resistance at a lower cost, making it a cost-effective choice for applications requiring corrosion resistance.
Applications: Widely used in industries such as nuclear power, petroleum refining, chemical processing, pharmaceutical production, food processing, and more where corrosive environments are prevalent.
Fabrication: Alloy 20 is readily fabricated using standard methods due to its good ductility and weldability.

Specifications:

Specifications: ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, GOST, and others.
Size Range: 1/2″ (15 NB) to 48″ (1200 NB) and larger (DN10 to DN5000).
Pressure Ratings: Class 150 LBS to 2500 LBS, PN6 to PN64, and other pressure classes as per international standards.
Flange Types: Includes Slip On, Weld Neck, Socket Weld, Threaded, Blind, Lap Joint, and more.
Face Types: Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), and others as required.

Quality Assurance:

Testing: Hydrostatic testing, direct-reading spectrograph, ultrasonic flaw detection, X-ray detection, magnetic particle detection, and more.
Certifications: EN 10204/3.1B, raw materials certificate, 100% radiography test report, third-party inspection report, etc.

Equivalent Grades:

Equivalent Grades: WERKSTOFF NR. 2.4660, UNS N08020, JIS NW 4400, EN NiCr20CuMo, BS –, GOST Z2NCUD31-20AZ, AFNOR –.

In summary, Alloy 20 Flanges are highly valued for their corrosion resistance in aggressive environments, mechanical strength, and cost-effectiveness compared to higher nickel alloys. They are widely used across industries where resistance to sulfuric acid and other corrosive chemicals is critical.