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Kunj Sheets and Plates is a reputable manufacturer and supplier of Copper Circles located in Chennai, India. We take pride in offering top-notch copper circles that are meticulously crafted from high-purity copper, guaranteeing exceptional electrical and thermal conductivity, corrosion resistance, and formability. Our copper circles come in various diameters and thicknesses, adhering to both national and international standards, and are extensively utilized in electrical, industrial, and decorative applications. With cutting-edge manufacturing facilities and a strong commitment to quality, Kunj delivers tailored copper solutions to meet the diverse needs of customers across India and around the globe.
Our Copper Circles are made up of 99.9% pure copper, with only trace amounts of impurities like oxygen or silver, depending on the specific grade (such as ETP or DHP copper). They boast impressive thermal conductivity (~390 W/m·K) and electrical conductivity (~97% IACS). The tensile strength ranges from 210 to 250 MPa, with a yield strength of about 70 to 100 MPa, and elongation can reach up to 45%, depending on the temper. This material is highly ductile, resistant to corrosion, and perfect for forming and deep drawing, making it ideal for both industrial and artisan manufacturing processes.
| Specifications | ASTM B171/ ASME SB171 |
| Standards | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Rings Diameter | 3″ OD up to 48″ OD Up to 900 lbs max |
| Circle Diameter | 3″ DIA up to 38″ DIA 1500 lbs max |
| Cutting | Plazma & Machined Cut |
| Form | Cold Rolled Circle, Small Flat Circle, Industrial Circle, Perforated Circle, Forged Steel Circles, 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.
| 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 |
| Type | Width | Thickness | Inner Diameter | Surface Finish |
| Copper Alloy Hot Rolled No.1 Circles | 610~2000 mm | 2.5~10.0 mm | 610 +0/-5 mm | 2D, 2B, BA, No.4, No.3,No.5, HL, SB |
| Copper Alloy Cold Rolled Circles | 610~1524 mm | 0.3~3.0 mm | 610 or 508 +0/-5 mm | |
| Pre-painted Copper Circles | 130-1524mm | 0.4-3.0mm | – | 2B, 2D |
Copper circle offer many benefits, making them in high demand in various industries. Their excellent thermal conductivity ensures high efficiency in electrical components and heat exchangers. Copper’s inherent corrosion resistance makes it durable and durable even in harsh environments. The material is more flexible, making it easier to customize and customize. Spherical copper also exhibits high thermoelectric conductivity, making it ideal for applications in electronics, manufacturing and fabrication. In addition, their antimicrobial properties contribute to hygiene in industries such as healthcare and food processing. These characteristics make lead cylinders versatile and reliable.
Copper Circles find extensive use in the electrical and electronics sectors for crafting terminals, electrical contacts, and transformer components. Their outstanding thermal conductivity makes them a top choice for high-end cookware and induction bases. Additionally, they are popular in roofing, jewelry making, medallions, and decorative items due to their visual appeal and malleability. In HVAC and plumbing systems, copper circles are essential components for effective heat transfer and sealing. Their remarkable resistance to corrosion and excellent workability make them suitable for a wide range of industrial and artistic applications.
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Chennai, India
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