What is C21000 brass?
GNEE is a manufacturer, supplier, exporter, and stocker of C21000 brass round bars. Our C21000 brass round bars are of superior quality, durable, and suitable for a wide range of industrial applications. Commercial bronze or brass 21000 is a high-copper-content copper-zinc alloy that combines strength, corrosion resistance, and machinability. These properties make C21000 brass round bars ideal for construction, electrical components, and even marine applications.
GNEE utilizes advanced production technology, with a team of experienced experts strictly controlling the production process and selecting the highest-grade raw materials globally to produce C21000 brass round bars. As a leading manufacturer, supplier, exporter, and stocker, we conduct quality inspections and checks on every round bar before it leaves the factory to ensure it meets the requirements of our international customers.
Applications of C21000 Brass Round Bars
We offer C21000 brass round bars in various sizes and specifications to meet the needs of different customers. Whether it's a small-batch purchase or a large-volume order, we can handle all operations efficiently and accurately. One of the main advantages of C21000 brass round bars is their excellent machinability, allowing them to be machined into various shapes and components without compromising their structural integrity.
They are ideal for applications requiring complex designs and fine surface finishes, such as architectural decorative fittings and precision parts in electrical systems. Furthermore, the excellent corrosion resistance of C21000 brass round bars makes them perform exceptionally well in extreme conditions involving frequent exposure to moisture and chemicals, such as marine or industrial environments.
Chemical Composition
|
Element |
Cu |
Zn |
Pb |
Fe |
P |
Others |
|
Weight % |
94–96 |
Balance |
≤0.05 |
≤0.05 |
≤0.01 |
≤0.1 |
Physical Properties
|
Property |
Value |
|
Density (g/cm³) |
8.86–8.94 |
|
Melting Point (°C) |
1049 |
|
Electrical Conductivity (%IACS) |
80–85 (Annealed) |
|
Thermal Conductivity (W/m·K) |
120–391 (at 20°C) |
Mechanical Properties
|
Condition |
Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (%) |
Hardness (HV) |
|
Annealed |
220–290 |
69–100 |
35–45 |
40–60 |
|
Cold Worked (H01) |
255–325 |
200–250 |
20–30 |
50–70 |
|
Cold Worked (H04) |
345–405 |
300–350 |
10–15 |
80–100 |
C21000 vs. C22000 (Commercial Bronze)
| Property | C21000 (Gilding Metal) | C22000 (Commercial Bronze) | Key Difference |
|---|---|---|---|
| Composition | ~95% Cu, ~5% Zn | ~90% Cu, ~10% Zn | C22000 has slightly lower copper content. |
| Color | Red-gold | Medium gold, slightly less red than C21000 | Colors are similar; C21000 is slightly redder. |
| Mechanical | Softer, more ductile | Slightly stronger and harder | The differences are subtle; both are highly ductile. |
| Conductivity | Slightly higher | Slightly lower | Both have good conductivity; C21000 is marginally better. |
| Primary Uses | Jewelry, fine decorative work | Architectural bronze, grillwork, nameplates, costume jewelry | Uses overlap significantly. C22000 is a common "architectural bronze." |
| Cost | Slightly higher | Slightly lower | Cost difference is usually minor. |
How to Choose:
Choose C21000 for applications demanding the absolute highest formability or the warmest red-gold hue.
Choose C22000 when a slightly harder, more economical alternative is acceptable for general architectural or decorative applications where the color difference is negligible.
Our factory
Our factory is a modern, specialized manufacturer of copper and copper alloy products with over 19 years of experience. We integrate R&D, production, and sales into one seamless operation. Equipped with advanced production lines-including continuous casting and rolling, precision drawing, cold rolling, and automated finishing equipment-we strictly adhere to the ISO 9001 quality management system and international standards such as ASTM and EN. We focus on producing high-quality copper tubes, sheets, plates, rods, wires, and strips.
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Copper product packaging
We are committed to providing safe and efficient end-to-end logistics support for every order you place. Upon completion of production, all products are professionally and custom-packaged according to their shape and transportation requirements: copper tubes are lined with moisture-proof padding and secured in reinforced wooden cases or heavy-duty steel strapping; sheets and strips are sealed with waterproof stretch film and fixed on reinforced wooden pallets, with corner protectors added to the edges; wires and rods are bundled and coated with anti-rust protection. All packaging meets export standards and can withstand long-distance sea freight and complex land transportation. We offer a variety of trade terms, including EXW, FOB, and CIF, and collaborate with multiple international logistics companies to arrange door-to-door delivery and provide real-time shipment tracking, ensuring your goods arrive at your designated destination on time and in perfect condition.
