Browse Our Collection
Get instant quotes that fit your budget perfectly.
Boikanyo Sheets and Plates stands out as a top manufacturer and supplier of **Super Duplex Steel Circles** in Cape Town, South Africa. We pride ourselves on delivering high-performance products that are specifically designed for tough industrial settings. Our Super Duplex Steel Circles are celebrated for their remarkable strength, resistance to corrosion, and long-lasting durability. They effectively merge the best features of both austenitic and ferritic stainless steels. At Boikanyo Sheets and Plates, we guarantee precision in our manufacturing processes, strict compliance with international quality standards, and a variety of sizes and finishes to meet your needs. These circles are built for reliability over the long haul, making them perfect for use in industries like chemical processing, oil and gas, marine, desalination, and power generation—where top-notch performance in extreme conditions is a must.
**Super Duplex Steel Circles** are made up of about 22–25% chromium, 4–6% nickel, 3–5% molybdenum, and trace amounts of nitrogen, all contributing to a well-balanced ferritic-austenitic microstructure. This unique composition results in impressive mechanical properties, such as tensile strength reaching up to 850 MPa, excellent toughness, and high resistance to fatigue. The elevated levels of chromium, molybdenum, and nitrogen provide exceptional protection against pitting, crevice corrosion, and stress corrosion cracking, even in harsh environments. With their combination of high strength and corrosion resistance, Super Duplex Steel Circles are ideal for applications that demand both mechanical performance and chemical durability.
| Specifications | ASTM A240 / ASME SA240 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Thickness | 1 mm To 100 mm |
| Diameter | Upto 2000 mm |
| Circle | 3″ DIA up to 38″ DIA 1500 lbs max |
| Rings | 3″ OD up to 48″ OD Up to 900 lbs max |
| Cutting | Plazma & Machined Cut |
| Finish | HR, CR, 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | Cold Rolled Circle, Small Flat Circle, Industrial Circle, Perforated Circle, Forged Steel Circles, Cnc Finish Circle, Polished Unique Circle, Hot Rolled Circle, Fey Laminar Rings, Proof Machined Rings, Cold Rolled Rings, Hot Rolled Rings, McInnes Rolled Rings, Die-Formed Rings, Forging Rings, CNC Machined Rings. |
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.
Super Duplex Steel Circles offer several advantages, making them ideal for challenging environments. They provide exceptional corrosion resistance, particularly in harsh settings such as marine or chemical industries, due to their balanced composition. Their high tensile and yield strength enable excellent load-bearing capabilities, reducing material requirements and costs. With superior resistance to pitting, crevice corrosion, and stress corrosion cracking, they ensure long-lasting performance. Additionally, they exhibit excellent weldability and machinability, simplifying fabrication. The combination of durability, strength, and corrosion resistance makes them a cost-effective choice for demanding industrial applications.
Yes, we offer custom sizes for Super Duplex Steel Circle 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.
| Size | 18 G. | 19 G. | 20 G. | 22 G. | 24 G. | 26 G. |
| .4.5 | .0-107 | 0-085 | 0-080 | 0-062 | 0.049 | 0-040 |
| 5 | 0-120 | 0-095 | 0-090 | 0-070 | 0-055 | 0-045 |
| 5.5 | 0-146 | 0-119 | 0-109 | 0-085 | 0-066 | 0-054 |
| 6 | 0-172 | 0-136 | 0-130 | 0-100 | 0-079 | 0-064 |
| 6.5 | 0-200 | 0-153 | 0-150 | 0-128 | 0-093 | 0-074 |
| 7 | 0-235 | 0-190 | 0-176 | 0-136 | 0-107 | 0-088 |
| 7.5 | 0.270 | 0.212 | 0.201 | 0-157 | 0-123 | 0-100 |
| 8 | 0-307 | 0-240 | 0-230 | 0-180 | 0-140 | 0-115 |
| 8.5 | 0-347 | 0-270 | 0-262 | 0-202 | 0-156 | 0-130 |
| 9 | 0-388 | 0-330 | 0-301 | 0-230 | 0-178 | 0-145 |
| 9.5 | 0-472 | 0-342 | 0-324 | 0-252 | 0-198 | 0-162 |
| 10 | 0-480 | 0-380 | 0-360 | 0-280 | 0-220 | 0-180 |
| 11 | 0-580 | 0-450 | 0-435 | 0-338 | 0-266 | 0-218 |
| 12 | 0-690 | 0-540 | 0-518 | 0-403 | 0-318 | 0-253 |
| 13 | 0-811 | 0-640 | 0-508 | 0-608 | 0-371 | 0-304 |
| 14 | 0-940 | 0-750 | 0-708 | 0-558 | 0-430 | 0-352 |
| 15 | 1-080 | 0-860 | 0-808 | 0-650 | 0-495 | 0-405 |
| 16 | 1-228 | 0-960 | 0-921 | 0-736 | 0-563 | 0-460 |
| 17 | 1-382 | 1-080 | 0-940 | 0-809 | 0-635 | 0-560 |
| 18 | 1-595 | 1-200 | 1-116 | 0-907 | 0-712 | 0-683 |
| 19 | 1-732 | 1-350 | 1-300 | 1-010 | 0-794 | 0-750 |
| 20 | 1-920 | 1-400 | 1-340 | 1-120 | 0-880 | 0-785 |
| RAW MATERIAL | MAX. HARDNESS | TEMPERATURE | ABBREVIATIONSMARKER | |
| BRUCELLOSIS | ROCKWELL | |||
| SOFT IRON | 90 | 56 | -60 540 | D |
| LOW CB STEEL | 120 | 68 | -40 540 | S |
| 304SS | 160 | 83 | -250 700b | 304 |
| 304LSS | 150 | 83 | -250 450 | 304L |
| 316SS | 160 | 83 | -200 700b | 316 |
| 316LSS | 150 | 83 | -200 450 | 316L |
| 321SS | 160 | 83 | -200 700b | 321 |
| 347SS | 160 | 83 | -200 700b | 347 |
| 410SS | 170 | 86 | -40 650 | 410 |
| 5Cr-0.5Mo | 130 | -29 650 | ||
| COPPER | 80 | -100 315 | ||
| ALUMINUM | 35 | -200 425 | ||
| INCONEL 600 | 150 | -100 1095 | ||
| INCOLOY 825 | 160 | -100 1095 | ||
| MONEL 400 | 150 | -100 760 | ||
| TITANIUM | 215 | -200 540 | ||
| NICHEL 200 | 110 | -200 760 | ||
| HASTELLOY C276 | 200 | -100 1095 | ||
These **Super Duplex Steel Circles** find their place in various industries that require materials with high strength and resistance to corrosion. In the chemical and petrochemical sectors, they are essential for reactors, heat exchangers, pressure vessels, and piping systems that handle aggressive chemicals. The oil and gas industry relies on them for offshore platforms, subsea equipment, and pipelines that face the challenges of harsh marine conditions. They are also crucial in marine applications, including shipbuilding and desalination plants.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
Discover high-quality products tailored to meet your unique needs and preferences.
Get instant quotes that fit your budget perfectly.
Copyright 2024 Boikanyo Sheet and Plates. All rights reserved
