Neil Metals, located in Kolkata, India, stands out as a top manufacturer and supplier of high-quality Alloy 20 Round Bars, celebrated for their remarkable corrosion resistance and mechanical strength. These bars are specifically crafted to thrive in tough chemical and industrial settings, offering outstanding performance against sulfuric acid and corrosion caused by chlorides. Neil Metals takes pride in delivering precision-engineered round bars that meet international quality standards, ensuring they are durable and reliable. With a strong commitment to customer satisfaction, timely deliveries, and customized solutions, Neil Metals caters to essential industries like chemical processing, pharmaceuticals, food production, and marine engineering, both locally and globally.
Alloy 20 Round Bars are made up of roughly 32–38% nickel, 19–21% chromium, 3–4% copper, and 2–3% molybdenum, along with balanced iron and a niobium stabilizer to prevent intergranular corrosion. These bars showcase excellent resistance to corrosion, particularly against sulfuric acid and other harsh chemicals. Their mechanical properties include a tensile strength of about 620 MPa, a yield strength of around 300 MPa, and impressive elongation and ductility. Alloy 20 also stands strong against stress corrosion cracking, pitting, and crevice corrosion, making it a dependable choice for fabrication, forming, and machining in chemically aggressive environments.
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 Round Bars are extensively utilized in applications that demand high corrosion resistance and mechanical stability. In chemical and petrochemical facilities, they are found in tanks, heat exchangers, piping, pumps, and valves that handle acidic solutions. The food and beverage sector relies on Alloy 20 for sanitary equipment and processing systems, thanks to its resistance to acidic and chloride-rich conditions. In the pharmaceutical industry, it’s the go-to material for cleanroom and sterile process components. The marine and offshore industries also favor Alloy 20 for structural parts and fasteners that are exposed to seawater. Additionally, it plays a role in power plants and pulp & paper manufacturing.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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