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Boikanyo Sheets and Plates, located in Cape Town, South Africa, has earned a solid reputation as a reliable manufacturer and supplier of stainless steel 253MA angles. Their products are crafted with care, designed to deliver exceptional high-temperature strength, corrosion resistance, and long-lasting durability. Using cutting-edge rolling and fabrication techniques, the company ensures that their 253MA angles are precision-engineered, boasting uniform dimensions, a smooth surface finish, and dependable mechanical properties. These stainless steel angles are perfect for applications in power generation, petrochemical, chemical processing, and marine industries, where maintaining structural integrity and performance at high temperatures is crucial.
Stainless steel 253MA angles are a type of austenitic stainless steel, containing 21–23% chromium, 11–12% nickel, 0.5% molybdenum, along with trace amounts of nitrogen and rare earth elements that boost their high-temperature capabilities. They offer impressive tensile strength ranging from 580 to 750 MPa and yield strength between 300 and 450 MPa, along with outstanding creep resistance, oxidation resistance, and thermal stability up to 1,050°C. This unique composition helps them resist carburization, scaling, and thermal fatigue, making them ideal for continuous high-temperature use.
| Standard | ASTM A240 / ASME SA240 |
| Width | 1000mm-2000mm |
| Thickness | 1.0mm – 100mm |
| Specialize | Shim Sheet, Perforated Sheet, B. Q. Profile. |
| % | Ni | Cr | Fe | Si | Mn | C | P | N | S | Ce |
|---|---|---|---|---|---|---|---|---|---|---|
| Min | 10 | 20 | Balance | 1.40 | – | 0.05 | – | 0.14 | – | 0.03 |
| Max | 12 | 22 | – | 2 | 0.80 | 0.10 | 0.04 | 0.20 | 0.03 | 0.08 |
| Mechanical Properties | 100⁰C | 900⁰C | 50⁰C | 300⁰C | 200⁰C | 400⁰C | 600⁰C | 500⁰C | 800⁰C | 700⁰C | 850⁰C |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ultimate Tensile Strength/ MPa | 621.9 | 171 | 663.3 | 568.1 | 577.8 | 549.5 | 475.7 | 522 | 388.9 | 386.1 | 254.4 |
| 0.2% Yield Strength / MPa | 271 | 80 | 304.8 | 202 | 222 | 200.6 | 166.9 | 173.1 | 148.2 | 158.6 | 100.7 |
| Reduction of area / % | 48 | – | 51 | 46 | 46 | 46 | 43 | 44 | – | 44 | – |
| Elongation / % | 65 | 92 | 68 | 64 | 65 | 60 | 63 | 62 | 76 | 58 | 88 |
| STANDARD | UNS | WERKSTOFF NR. |
| 253 MA | S30815 | 1.4835 |
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.
The stainless steel 253MA angle provides excellent resistance to high temperature oxidation and corrosion, making it ideal for use in harsh environments. It maintains its strength and durability at high temperatures, ensuring long-term performance in heat exchangers, furnaces and chemical equipment The alloy is resistant to sulfide stress breakdown and creep, and provides reliable performance at petrochemical and power generation industries. Its weldability and formability make it easy to assemble, while its scaling and corrosion resistance ensure extended working life and reduced maintenance costs.
These stainless steel 253MA angles find their place in various applications, including furnace components, boiler structures, heat exchangers, chimneys, and petrochemical equipment that are regularly exposed to high temperatures. They’re also utilized in power plants, industrial ovens, and high-temperature frameworks where structural support, durability, and scaling resistance are vital. The blend of mechanical strength, thermal stability, and corrosion resistance makes 253MA angles a top choice for high-performance structural and industrial needs.
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