Phehlukwayo Metal, located in Cape Town, South Africa, is a reliable manufacturer and supplier of corrosion-resistant metal solutions, including Alloy 20 forgings. They cater to various industries such as chemical, pharmaceutical, food processing, and marine, producing high-performance forgings designed for tough environments. With cutting-edge manufacturing capabilities and a strong commitment to quality control, Phehlukwayo Metal guarantees precision, durability, and adherence to international standards. Their Alloy 20 forgings are particularly recognized for their resistance to acid attacks and impressive mechanical properties, making them a trusted choice for customers in need of top-notch materials for challenging operating conditions.
Alloy 20 forgings mainly consist of nickel (32–38%), iron (the balance), chromium (19–21%), copper (3–4%), and molybdenum (2–3%). This austenitic alloy is specifically engineered to withstand corrosion from sulfuric acid and other harsh chemicals. It boasts typical mechanical properties such as a tensile strength ranging from 551 to 758 MPa, a yield strength of about 241 MPa, and an elongation of roughly 30–40%. Additionally, Alloy 20 offers excellent resistance to stress corrosion cracking and pitting caused by chlorides. It’s also easy to weld and can be forged into intricate shapes without sacrificing its corrosion resistance or mechanical performance, making it perfect for a variety of industrial applications.
| 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.
You’ll find Alloy 20 forgings commonly used in settings that deal with strong acids, especially sulfuric acid, thanks to their exceptional corrosion resistance. Typical applications include heat exchangers, tanks, reactors, pump components, and pipe fittings in the chemical and pharmaceutical sectors. In the food processing industry, it’s utilized for equipment that comes into contact with acidic cleaning agents and products. Alloy 20 is also a great fit for marine applications, where it needs to resist saltwater and other harsh conditions.
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
Copyright 2024 Phehlukwayo Metals. All rights reserved
