What is C21000 brass?
C21000 brass, also known as H95 brass, is a composite material composed of copper, zinc, nickel, iron, and other elements. It exhibits excellent corrosion resistance, electrical and thermal conductivity, high strength, and wear resistance. This material is widely used across multiple industrial fields.
Basic Characteristics of C21000
The main features of C21000 brass include:
Excellent corrosion resistance: Resistant to seawater erosion and oxidation, making it suitable for marine applications.
Superior electrical and thermal conductivity: Widely used in manufacturing submarine cables, electrical devices, and heat exchangers.
High strength and wear resistance: Suitable for machinery manufacturing, construction, aerospace, and other fields.
Chemical Composition of C21000
The chemical composition of C21000 is as follows:
Copper (Cu): 94.0% – 96.0%
Zinc (Zn): Balance
Iron (Fe): ≤0.05%
Lead (Pb): ≤0.05%
Nickel (Ni): ≤0.5%
Total other impurities: ≤0.3%
Physical Properties of C21000
The physical properties of C21000 include:
Density: Approximately 8.86 g/cm³
Electrical conductivity: ≥54% IACS
Conductivity: 31.32 MS/m
Thermal conductivity: 234 W/(m·K)
Coefficient of thermal expansion: 18.0 × 10⁻⁶/K
Elastic modulus: 115 GPa
Mechanical Properties of C21000
The mechanical properties of C21000 are as follows:
Tensile strength: ≥215 MPa (Condition M)
Elongation: ≥30% (Condition M)
Vickers hardness: ≤90 (Condition M)
Heat Treatment Processes for C21000
The heat treatment processes for C21000 include:
Annealing: Temperature range of 540–600°C, used to enhance plasticity and toughness.
Solution treatment: Temperature range of 775–850°C, used to improve strength and hardness.
Application Fields of C21000
C21000 is widely used in:
Electrical industry: Wires, cables, electrical connectors, etc.
Thermal engineering: Heat sinks, heat exchangers, etc.
Automotive industry: Various fasteners and decorative components.
Construction field: Water pipes, heating pipes, decorative materials, etc.
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.
