Tariku Metals, a prominent manufacturer and supplier located in Addis Ababa, Ethiopia, is dedicated to providing top-notch Alloy 20 Forgings that are crafted for exceptional corrosion resistance and mechanical performance. These forgings are specifically designed to endure tough chemical and acidic conditions, making them perfect for industries like chemical processing, pharmaceuticals, and food production. With a commitment to precision manufacturing and compliance with international standards, Tariku Metals guarantees consistent quality, precise dimensions, and a long lifespan. Their Alloy 20 Forgings are globally recognized for their durability, strength, and reliability in challenging industrial settings where resistance to sulfuric acid and chloride stress cracking is essential.
Alloy 20 Forgings are made from a nickel-iron-chromium base that includes about 32–38% nickel, 19–21% chromium, 3–4% copper, along with trace amounts of molybdenum, niobium, and iron to balance the composition. This distinctive blend offers remarkable resistance to sulfuric acid, chlorides, and nitric acid. In terms of mechanical properties, Alloy 20 boasts a tensile strength ranging from 550–750 MPa and a yield strength of about 250–350 MPa, along with impressive elongation and toughness. The alloy is also known for its excellent fabricability, weldability, and resistance to pitting, crevice corrosion, and intergranular attack in both oxidizing and reducing environments.
| Specifications | ASTM B462, ASME SB462 |
|---|---|
| Standard | DIN, ASTM, BS and all International Standards |
| Flat bar blocks | up to 27″ width and 15,000 lbs |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
| 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 % |
| STANDARD | WERKSTOFF NR. | UNS | EN | AFNOR |
| Alloy 20 | 2.4660 | N08020 | NiCr20CuMo | Z2NCUD31-20AZ |
Yes, Alloy 20 forgings are highly resistant to corrosion, particularly against sulfuric acid, making them ideal for chemical processing environments. Their excellent resistance ensures durability and longevity in harsh conditions.
The maximum operating temperature for Alloy 20 forgings is typically around 1000°F (537°C). However, it is important to consider application conditions and potential stress factors to ensure optimal performance.
Yes, Alloy 20 forgings can be customized for specific applications. They are tailored to meet unique requirements, offering excellent corrosion resistance, durability, and strength for various industrial uses.
Alloy 20 Forgings find extensive use in industries that deal with strong acids and corrosive substances. They are particularly well-suited for creating pumps, valves, fittings, flanges, and heat exchangers in the chemical processing and petrochemical sectors. Food and pharmaceutical facilities also rely on Alloy 20 for its contamination resistance and ease of cleaning. Common applications include tanks, piping systems, reactor vessels, and evaporators that interact with sulfuric acid and chlorides. Moreover, its outstanding mechanical properties make it a go-to choice for demanding environments where reliability is key.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Tariku Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Addis Ababa, Ethiopia
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