Phehlukwayo Metal is a well-respected manufacturer and supplier located in Cape Town, South Africa, specializing in top-notch Alloy 20 round bars. They cater to various industries, including chemical processing, pharmaceuticals, food production, and marine engineering, providing precision-forged bars that adhere to strict international standards. With a strong emphasis on corrosion resistance and mechanical strength, Phehlukwayo Metal guarantees that their Alloy 20 round bars are crafted with meticulous quality controls and customized to meet customer needs. Their expertise and dependable supply chain make them a go-to partner for critical applications that demand exceptional material performance in challenging environments.
Alloy 20 round bars primarily consist of nickel (32–38%), chromium (19–21%), iron (the balance), copper (3–4%), and molybdenum (2–3%). This austenitic alloy is designed to offer outstanding resistance to sulfuric acid and other corrosive substances. Typically, the mechanical properties include a tensile strength ranging from 551 to 758 MPa, a yield strength of about 241 MPa, and an elongation of 30–40%. Alloy 20 also showcases impressive resistance to chloride-induced stress corrosion cracking and pitting, along with good weldability, ensuring it maintains strength and corrosion resistance in its forged round bar form, making it ideal for demanding industrial applications.
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 find extensive use in manufacturing components that are exposed to harsh chemical environments, particularly in sulfuric acid processing equipment like heat exchangers, reactors, valves, and pump shafts. They are also utilized in the pharmaceutical and food sectors for corrosion-resistant machinery and piping. In marine settings, these bars excel in chloride-rich conditions, effectively preventing pitting and stress corrosion cracking. Alloy 20 round bars are highly valued for their durability, corrosion resistance, and mechanical integrity, making them indispensable in critical systems where reliability is paramount.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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