What is C21000 brass?
Our high-quality C21000 brass sheets are renowned for their excellent formability, superior corrosion resistance, and exceptionally long service life. Thanks to their unique properties, C21000 brass sheets are widely used in industries such as construction, automotive, and marine.
GNEE offers C21000 brass sheets of exceptional quality that meet the highest industry standards. Also known as commercial bronze, C21000 brass contains 90% copper and 10% zinc. Its high ductility and strength make this alloy ideal for numerous industries. Our C21000 brass sheet manufacturers ensure that every sheet is dimensionally accurate, has a smooth surface, and fully meets the specific needs of our customers.
Applications of C21000 Sheet Metal
Due to its excellent mechanical properties, C21000 brass sheet metal has a wide range of applications. These materials are used in various hardware, marine, and construction applications. Furthermore, its aesthetic appeal and ease of processing make it important in the creation of decorative items and art installations. GNEE ensures that delivered products meet technical and aesthetic standards while also being functional and visually appealing.
Material Specification of Brass C21000 Sheets
| Product Name | Brass Plate/Sheet |
|---|---|
| Standard | JIS H3250-2006,ASTM B152M,GB/T2040-2008,ASTM B36,ASTM B194,ASTM B888,ASTM B19,ASTM B122,etc |
| Thickness | 0.1-120mm or as required |
| Width | 2-2500mm or as required |
| Length | 1m,2m,3m,6m,or as required |
| Surface | mill,polished,bright,mirror,hair line,brush,checkered,antique,sand blast,etc |
| Package | Standard export package,suit for all kinds of transport,or as required. |
| Application |
Brass plate has a high corrosion resistance, and have good plasticity,in the air easy to cold and hot pressure processing, easy to welding, forging and tin, no stress corrosion cracking the tendency. |
| Quality control | Mill Test Certification is supplied with shipment,Third Part Inspection is acceptable. |
Chemical Equation of Brass C21000 Sheets
| Element | Copper (Cu) | Zinc (Zn) | Lead (Pb) | Iron (Fe) | Phosphorus (P) | Other Elements |
|---|---|---|---|---|---|---|
| Composition (%) | 94.0 - 96.0 | 4.0 - 6.0 | 0.05 (max) | 0.05 (max) | 0.04 (max) | 0.30 (max) |
Mechanical Composition of Brass C21000 Sheets
| Property | Tensile Strength | Yield Strength (0.2% Offset) | Elongation at Break (in 50mm) | Hardness, Brinell (500kg load, 10mm ball) | Modulus of Elasticity | Poisson's Ratio |
|---|---|---|---|---|---|---|
| Value | 310 - 390 MPa | 110 - 240 MPa | 20 - 40% | 65 - 120 HB | 97 GPa | 0.33 |
FAQ
| Q: Where can I buy C21000 brass sheet or strip? A: C21000 products are supplied by specialized metal distributors, mills, and online metal suppliers. Ensure the supplier provides certified Mill Test Reports (MTR) for quality assurance. |
| Q: Does C21000 contain lead? A: Standard C21000 is typically lead-free. However, always verify with the supplier's material certification to ensure compliance with regulations like RoHS or NSF for specific applications. |
| Q: What tempers or forms is C21000 available in? A: C21000 is commonly supplied in annealed (soft), half-hard, and hard tempers. Available forms include sheet, strip, foil, wire, tube, and occasionally rod. |
| Q: Can C21000 be polished or plated? A: Yes, C21000 takes well to mechanical polishing, buffing, and electroplating (e.g., nickel, gold, or chrome) for enhanced appearance and durability. |
| Q: Is C21000 suitable for marine applications? A: C21000 is not ideal for direct seawater exposure due to potential dezincification. For marine environments, alloys like C46400 (naval brass) or copper-nickel alloys are preferred. |
| Q: What are the thermal conductivity and electrical conductivity of C21000? A: C21000 has about 80–85% IACS electrical conductivity and thermal conductivity around 100–120 W/(m·K), making it suitable for certain electrical and heat exchange applications. |
| Q: How does C21000 compare to pure copper in conductivity? A: C21000 has lower electrical and thermal conductivity than pure copper (C11000, ~101% IACS) due to its zinc content, but it offers better strength and formability. |
| Q: What standards cover C21000 brass? A: C21000 is covered by ASTM B36 (sheet/plate), ASTM B134 (wire), ASTM B135 (tube), SAE J461, and other relevant ASTM/UNS specifications. |
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.
