ISO Certified Copper Circles & Rings – Precision manufactured with smooth, patinated, and brushed finishes. Offered in high-quality Oxygen-Free, ETP grades C11000, C12000, C12200, C10100, C10200, C10300, C11300 for excellent electrical and thermal performance.
We are a premier manufacturer and supplier of Copper Circles & Rings, crafted with precision to meet diverse industrial needs. Made from high-purity copper, our circles and rings offer excellent electrical and thermal conductivity, making them ideal for electrical, plumbing, and heat exchanger applications. Manufactured under strict quality controls, our copper products conform to industry standards to ensure reliability and superior performance.
Our Copper Circles & Rings are available in various sizes, with diameters ranging from 50 mm up to 1500 mm and thicknesses between 2 mm and 40 mm. We offer different types such as hot-rolled circles, cold-rolled circles, and forged rings, catering to varied application requirements. Produced according to ASTM B152 and ASTM B187 standards, these circles and rings come in popular grades like C11000 (Electrolytic Tough Pitch), C10100 (Oxygen-Free Copper), and C10200 (Oxygen-Free High Conductivity). These materials provide excellent corrosion resistance, workability, and high conductivity for efficient performance.
Widely used across electrical engineering, construction, HVAC, and marine industries, our Copper Circles & Rings deliver long-lasting durability and superior functional properties. Whether for manufacturing connectors, conductors, plumbing components, or decorative fittings, these copper products are trusted for their strength, conductivity, and corrosion resistance. We cater to global markets with competitive pricing and timely delivery, ensuring customer satisfaction at every step.
Shop Precision Electrolytic, DHP, OFHC Copper Circles & Rings – Sizes from 10mm to 1500mm OD with Custom Thicknesses – Compliant with ASTM B152, ISO Certified Production – Supplied as Rolled, Forged, and CNC Machined Circles.
Copper Alloy Circles & Rings Specifications
| Product | Copper Circles & Rings |
| Grades | C10100 (OFHC Copper), C10200, C11000 (Electrolytic Tough Pitch), C12000, C12200 (DHP Copper), C10300, C11300, C14500, C19400, C14700 |
| Standards | ASTM B152, ASTM B187, ASTM B133, ASTM B370, ASTM B506, ASTM B194, ISO 9001 Certified |
| Size Range | Outer Diameter (OD): 10mm to 150mm Inner Diameter (ID): Custom as per requirement Thickness: 0.5mm to 5mm |
| Types | Flat Circles, Hammered Rings, Seamless Rings, Textured Copper-Steel Rings |
| Surface Finish | Polished, Hammered, Textured, Painted or Coated (Optional) |
| Manufacturing Methods | Forging, CNC Machining, Laser Cutting, Water Jet Cutting |
| Applications | Electrical Contacts, Mechanical Parts, Decorative Crafts, Industrial Components |
| Properties | Corrosion Resistance, High Strength, Good Electrical & Thermal Conductivity, Durability |
| Certifications | ISO 9001:2015, RoHS Compliant, ASTM Certified |
Types of Copper Circles & Rings
Blank Circles / Discs
Supplied in custom diameters and thicknesses as per client specifications.
Flange Rings
Rings used as components for flanges in piping systems, pressure vessels, etc.
Gasket Rings
Gasket Rings are Available in standard and custom sizes as per ASME or DIN specifications.
Spacer Rings
Rings used to maintain space between mechanical parts commonly used in equipment.
Washer Rings
Smaller rings used as washers for load distribution under bolts and nuts.
Split Rings
C-shaped or snap-fit rings used to hold assemblies in grooves or shafts.
Profile Cut Rings
Custom-shaped rings cut from plates using CNC, laser, or waterjet, for specific machinery.
Forged Rings
Heavy-duty rings forged for strength, used in aerospace, marine industry or heavy machinery.
Equivalent of Copper Alloy Circles
| UNS No. | ASTM | EN (DIN) | Grade Name | Type |
|---|---|---|---|---|
| C10100 | ASTM B170 / B187 | Cu-OF (CW008A) | Oxygen-Free High Conductivity Copper | Oxygen-Free |
| C10200 | ASTM B187 / B152 | Cu-OF (CW008A) | Oxygen-Free Copper | Oxygen-Free |
| C11000 | ASTM B152 / B187 / B133 | Cu-ETP (CW004A) | Electrolytic Tough Pitch Copper | High Conductivity |
| C12200 | ASTM B152 / B75 | Cu-DHP (CW024A) | Phosphorus-Deoxidized High Residual P | Deoxidized Copper |
| C12000 | ASTM B152 | Cu-DLP (CW023A) | Phosphorus-Deoxidized Low Residual P | Deoxidized Copper |
| C10300 | ASTM B170 | Cu-HCP | High Conductivity Copper | Oxygen-Free |
| C11300 | ASTM B301 | CuAg0.10 (CW019A) | Copper-Silver Alloy | Alloyed Copper |
Chemical Composition of ETP Copper Rings
| Grade | UNS No. | Cu (%) | O (%) | P (%) | Ag (%) | Other Elements (%) |
|---|---|---|---|---|---|---|
| Electrolytic Tough Pitch Copper | C11000 | ≥ 99.90 | ≤ 0.04 | – | – | 0.04 max (total) |
| Oxygen-Free Copper | C10200 | ≥ 99.95 | ≤ 0.001 | – | – | 0.05 max (total) |
| Oxygen-Free High Conductivity Copper | C10100 | ≥ 99.99 | ≤ 0.0005 | – | – | 0.01 max (total) |
| Phosphorus-Deoxidized Copper (High P) | C12200 | ≥ 99.90 | Deoxidized | 0.015–0.040 | – | – |
| Phosphorus-Deoxidized Copper (Low P) | C12000 | ≥ 99.90 | Deoxidized | 0.004–0.015 | – | – |
| Copper-Silver Alloy | C11300 | ≥ 99.90 | – | – | 0.04–0.12 | – |
Mechanical Properties of Copper Alloy Circles & Rings
| Grade | UNS No. | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) | Electrical Conductivity (% IACS) |
|---|---|---|---|---|---|---|
| Electrolytic Tough Pitch Copper | C11000 | 210–370 | 70–300 | 30–45 | 40–80 | ≥ 100 |
| Oxygen-Free Copper | C10200 | 210–370 | 70–300 | 30–45 | 40–80 | ≥ 101 |
| Oxygen-Free High Conductivity Copper | C10100 | 210–370 | 70–300 | 35–50 | 40–70 | ≥ 101 |
| Phosphorus-Deoxidized Copper (High P) | C12200 | 205–275 | 65–170 | 25–45 | 40–70 | 85–90 |
| Phosphorus-Deoxidized Copper (Low P) | C12000 | 205–275 | 65–170 | 25–45 | 40–70 | 85–90 |
| Copper-Silver Alloy | C11300 | 240–410 | 100–350 | 20–40 | 50–85 | 95–98 |
Dimension Chart of Thin Copper Circles
| Outer Diameter (OD) | Inner Diameter (ID) | Thickness | Approximate Weight (grams) |
|---|---|---|---|
| 10 mm | 8 mm | 0.3 mm | 0.12 g |
| 10 mm | 8 mm | 0.5 mm | 0.20 g |
| 20 mm | 18 mm | 0.3 mm | 0.48 g |
| 20 mm | 18 mm | 0.5 mm | 0.80 g |
| 30 mm | 28 mm | 0.3 mm | 0.96 g |
| 30 mm | 28 mm | 0.5 mm | 1.60 g |
| 40 mm | 38 mm | 0.3 mm | 1.68 g |
| 40 mm | 38 mm | 0.5 mm | 2.80 g |
| 50 mm | 48 mm | 0.3 mm | 2.40 g |
| 50 mm | 48 mm | 0.5 mm | 4.00 g |
| 60 mm | 58 mm | 0.3 mm | 3.36 g |
| 60 mm | 58 mm | 0.5 mm | 5.60 g |
| 70 mm | 68 mm | 0.3 mm | 4.64 g |
| 70 mm | 68 mm | 0.5 mm | 7.70 g |
| 80 mm | 78 mm | 0.3 mm | 6.00 g |
| 80 mm | 78 mm | 0.5 mm | 10.00 g |
| 90 mm | 88 mm | 0.3 mm | 7.56 g |
| 90 mm | 88 mm | 0.5 mm | 12.60 g |
| 100 mm | 98 mm | 0.3 mm | 9.24 g |
| 100 mm | 98 mm | 0.5 mm | 15.40 g |
Pure Copper Rings Weight Chart
| Size in mm | Weight Per Meter | |
|---|---|---|
| KGS. | GMS. | |
| 150 x 150 x 1.5 mm | 0 | 315 |
| 150 x 150 x 3 mm | 0 | 630 |
| 150 x 150 x 6 mm | 1 | 260 |
| 300 x 300 x 3 mm | 2 | 520 |
| 300 x 300 x 5 mm | 4 | 200 |
| 300 x 300 x 6 mm | 5 | 040 |
| 450 x 450 x 6 mm | 5 | 700 |
| 450 x 450 x 6 mm | 11 | 400 |
| 600 x 600 x 3.15 mm | 10 | 180 |
| 600 x 600 x 6 mm | 20 | 000 |
Worldwide Supply of Copper Circles & Rings
Russia, Bahrain, Cyprus, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, Turkey, United Arab Emirates (UAE), Yemen, United States of America (USA), Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom, Vatican City.
