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Boikanyo Sheets and Plates is a reputable manufacturer and supplier located in Cape Town, South Africa, focusing on high-performance steel products, including the top-notch Alloy 20 Steel Angle. Known for their exceptional quality and dependable service, Boikanyo caters to a wide array of industries throughout South Africa and beyond. With a strong dedication to precision manufacturing, the company guarantees that all Alloy 20 angles adhere to strict industry standards, providing outstanding corrosion resistance and mechanical strength. Whether you need them for chemical processing, marine applications, or industrial use, Boikanyo Sheets and Plates is your trusted partner for Alloy 20 Steel Angle solutions.
Alloy 20 Steel Angle is an austenitic alloy made of nickel, iron, and chromium, featuring key components like 32–38% nickel, 19–21% chromium, 2–3% molybdenum, and a touch of copper to boost corrosion resistance. It excels in resisting sulfuric acid and stress corrosion cracking. In terms of mechanical properties, it boasts a tensile strength of about 620 MPa, a yield strength of around 275 MPa, and an elongation of 30–35%. Its impressive mechanical strength, paired with remarkable resistance to harsh chemicals, makes it perfect for challenging environments, particularly in the chemical and pharmaceutical sectors.
Specifications : ASTM B473, B464, B468 / ASME SB473, SB464, SB468
Angle Size Range : 20 x 20 mm to 100 x 100 mm
Angles Thickness : 3 to 12 mm (depending on size)
Channel Size Range : Base: 80 to 150 mm; Side: 40 to 75 mm
Channel Thickness : 5 to 6 mm (depending on size)
Length : 3MTR, 4MTR, 5MTR, 6MTR, or Custom Cut Sizes
| STANDARD | WERKSTOFF NR. | UNS | EN | AFNOR |
| Alloy 20 | 2.4660 | N08020 | NiCr20CuMo | Z2NCUD31-20AZ |
| Grade | C | Mn | Si | S | P | Fe | Ni | Cr | Mo | Cu |
| Alloy 20 | 0.07 max | 2.00 max | 1.00 max | 0.035 max | 0.045 max | 29.85 min | 32.00 – 38.00 | 19.00 – 21.00 | 2.00 – 3.00 | 3.00 – 4.00 |
| 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 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Boikanyo Sheets and Plates based in Cape Town, South Africa, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
Alloy 20 Steel Angle offers several key advantages, making it ideal for challenging industrial applications. Its superior corrosion resistance, especially against sulfuric acid and chloride environments, ensures long-lasting durability in chemical, petrochemical, and pharmaceutical industries. The alloy’s high tensile strength and excellent resistance to pitting, stress corrosion, and crevice corrosion make it highly reliable in extreme conditions. Additionally, Alloy 20 exhibits good weldability and formability, allowing for easy fabrication and versatile use. These properties make it an ideal choice for structural applications where reliability and resistance to harsh conditions are essential.
Yes, we offer custom sizes for Alloy 20 Steel Angle to meet specific project needs. Our team at Boikanyo Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
Alloy 20 Steel Angles find extensive use in industries where protection against acidic conditions and chloride-induced corrosion is essential. Typical applications include chemical processing equipment, storage tanks, heat exchangers, and piping systems in sulfuric acid facilities. They are also well-suited for pharmaceutical manufacturing, food processing, and marine settings due to their durability and hygiene compatibility. The superior mechanical strength and corrosion resistance of Alloy 20 make it an excellent choice for structural support in demanding environments. Boikanyo Sheets and Plates ensures that these angles meet rigorous quality standards, making them a reliable option for long-term industrial and commercial applications.
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