Rupal Metals stands out as a top-notch manufacturer and supplier of high-quality Alloy 20 Forgings, based in Delhi, India. This alloy is renowned for its remarkable resistance to corrosion, particularly in sulfuric acid environments, making it a go-to choice for the chemical and pharmaceutical processing sectors. We specialize in precision-forged components, including bars, rings, discs, and custom shapes, all crafted to meet international standards and tailored to our customers’ needs. With a commitment to quality, reliability, and prompt delivery, we cater to vital industries such as petrochemicals, food processing, and marine. Our Alloy 20 forgings are celebrated for their durability, versatility, and outstanding performance in corrosive conditions.
Alloy 20 (UNS N08020) is primarily made up of 35% nickel, 20–21% chromium, 3–4% copper, 2–3% molybdenum, with iron making up the balance, and a touch of niobium for stabilization. This unique blend gives it excellent resistance to sulfuric acid, as well as protection against chloride stress corrosion cracking and pitting. In terms of mechanical properties, it boasts a tensile strength of 620–690 MPa, a yield strength of around 300–380 MPa, and an elongation of 30–35%, depending on the condition. Alloy 20 strikes a perfect balance between high strength and good fabricability and weldability, making it a preferred option for critical applications in harsh chemical environments, especially where standard stainless steels might not hold up.
Alloy 20 Round Bar Specification : ASTM B473 , ASME SB473
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
Thickness : 50 mm to 6000 mm Long
Length : 1 To 6 Meters, Custom Cut Length
Form : Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc.
| 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 | UNS | WNR. | EN | AFNOR |
|---|---|---|---|---|
| Alloy 20 | N08020 | 2.4660 | NiCr20CuMo | Z2NCUD31-20AZ |
Type | SIZES (mm) | ISO Tolerance | SIZES (Inches) |
|---|---|---|---|
Peeled and Polished | 40.00 to 150.00 | h11-DIN 1013 | 1.50″ to 6.00″ |
Cold Drawn and Ground | 10.00 to 75.00 | h9-h8-h11-h10 | 5/6″ to 2.50″ |
Cold Drawn and Polish | 3.00 to 75.00 | h9-h8-h11-h10 | 1/8″ to 3.00″ |
Peeled and Ground | 20.00 to 50.00 | h10-h9-h11 | 3/4″ to 2.00″ |
Cut to size on request (tolerance +2/-0 mm). Standard lengths of Alloy 20 Bars 2000 mm up to 6000 mm available
50.0 | 6.0 |
65.0 | 9.0 |
55.0 | 7.0 |
45.0 | 5.0 |
70.0 | 10.0 |
60.0 | 8.0 |
75.0 | 12.0 |
90.0 | 20.0 |
80.0 | 16.0 |
130.0 | 30.0 |
100.0 | 25.0 |
160.0 | 35.0 |
120.0 | 40.0 |
Choose the right Alloy 20 Round Bar based on factors like corrosion resistance, strength requirements, and compatibility with your specific application environment.
The pressure rating of Alloy 20 Round Bar depends on factors such as size, temperature, and specific application conditions, typically determined through engineering calculations.
Yes, Alloy 20 Round Bar can be welded, offering excellent weldability with proper techniques.
Alloy 20 Forgings find their place in various industries where exceptional resistance to acidic and corrosive media is crucial. You’ll often see them in sulfuric acid processing, pharmaceutical manufacturing, food and beverage equipment, heat exchangers, chemical reactors, and storage tanks. Its ability to resist chloride-induced stress corrosion makes it a fantastic choice for marine hardware and offshore equipment. Additionally, Alloy 20 is utilized in pulp and paper mills, plastic processing, and dye production. Rupal Metals proudly supplies forged bars, rings, and more, ensuring our clients have the best materials for their needs.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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