What is C21000/H96 Brass Bar?
C21000 copper bar is made from a basic copper-zinc alloy containing approximately 95% copper and 5% zinc. This alloy combines the good electrical and thermal conductivity of copper with the strength of zinc, making it a preferred material for many industrial applications. C21000 copper bar is widely used in various manufacturing fields due to its excellent plasticity, good processability and moderate strength.
C21000/H96 Brass Bar applications
C21000 copper bar is suitable for applications requiring good thermal or electrical conductivity. It shows good corrosion resistance in many environments, especially dry environments. This alloy is very easy to cold and hot work and can be drawn into filaments or rolled into sheets. C21000 copper bar is very processable and can be processed by a variety of methods including machining, welding, casting and heat treatment. It is suitable for manufacturing parts requiring less tool wear with complex shapes during processing. In addition, C21000 copper bar can also undergo various surface treatments, such as plating, coloring, etc., to improve its appearance or corrosion resistance.
C21000/H96 Brass Parameters
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Diameter |
3mm-800mm, or customized |
Length |
500-12000mm, or customized |
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Processing |
Customized |
Standard |
ASTM, AISI, JIS, GB, DIN, EN |
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Brand |
C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910, C10920, C10930, C11000, C11300, C11400, C11500, C11600, C12000, C12200, C12300, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C65500, C68700, C70400, C70620, C71000, C71500, C71520, C71640, C72200, T1, T2, T3, TU1, TU0, TU2, TP1, TP2, TAg0.1, ect. |
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Surface |
Grinding, Polishing, Brightening, Oiling, Hair Thread, Brush, Mirror, Sandblasting or Processing As Required |
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Certification |
ISO, SGS, BV |
Payment Method |
FOB, CRF, CIF, EXW Acceptable |
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Port of Loading |
Any port in China |
Delivery Time |
Received 30% after deposit 7-15 working days |
Chemical Composition
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Copper: |
Zinc Zn: |
Lead Pb: |
Iron Fe: |
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95.0-97.0 |
Allowance |
≤ 0.03 |
≤ 0.10 |
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Antimony Sb: |
Bismuth Bi: |
Phosphorus P: |
Impurity: |
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≤ 0.005 |
≤ 0.002 |
≤ 0.01 |
≤ 0.2 |
Mechanical Properties
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Tensile Strength Kb (MPa): |
Elongation D10 (%): |
Elongation Δ5 (%): |
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≥205 |
≥35 |
≥42 |
FAQ
| Q: What is C21000 brass? A: C21000 is a specific copper-zinc alloy (gilding metal) standardized under the UNS system, containing approximately 94–96% copper and the remainder zinc. It is known for its excellent ductility, corrosion resistance, and warm golden color. |
| Q: What are the mechanical properties of C21000? A: Typical mechanical properties of C21000 (annealed condition) include a tensile strength of about 38–45 ksi (260–310 MPa), yield strength around 10–15 ksi (70–105 MPa), and elongation of 45–55%. Hardness is approximately 45–55 HRB. |
| Q: What is the equivalent of C21000 in European standards? A: C21000 is roughly equivalent to CuZn5 in EN standards (EN 1652) and may correspond to C2100 in JIS (Japanese standards). However, exact equivalents depend on specific composition and application requirements. |
| Q: What is C21000 brass used for? A: C21000 is commonly used in architectural decoration, jewelry crafting, medals, nameplates, electrical connectors, and decorative hardware due to its aesthetic appeal, formability, and good conductivity. |
| Q: Can C21000 be welded or brazed? A: Yes, C21000 can be welded and brazed using appropriate techniques. Oxyacetylene welding, TIG, and resistance welding are suitable, while brazing with silver-based or phosphorus-copper fillers is common. |
| Q: Is C21000 corrosion resistant? A: C21000 offers good corrosion resistance in atmospheric, freshwater, and mild chemical environments. However, it is not recommended for prolonged exposure to seawater or highly acidic/alkaline conditions. |
| Q: What is the difference between C21000 and C26000? A: The primary difference is copper content: C21000 (~95% Cu) is softer and more ductile with a reddish-gold color, while C26000 (~70% Cu) is stronger and more widely used in cartridges and mechanical parts. |
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.
