C84400 is a leaded semi-red brass copper alloy primarily composed of copper (Cu: 79.0–82.0%), zinc (Zn: 7.0–10.0%), lead (Pb: 6.3–7.7%), and tin (Sn: 2.9–3.5%), with trace amounts of iron, nickel, antimony, and other elements

C95500 is a high-strength aluminum bronze alloy widely used in demanding industrial applications due to its exceptional mechanical properties and corrosion resistance.

C17200 copper wire is a high-strength, high-conductivity beryllium copper alloy material, which is widely used in connectors, springs, miniature elastic contacts and other fields that require high mechanical properties and conductivity. Its characteristics include excellent tensile strength (up to 1400MPa), high elasticity, corrosion resistance, fatigue resistance and good processing performance.

C18150 copper tube is a chromium-zirconium-copper alloy material with high strength, high conductivity (conductivity>43 MS/m), high temperature resistance (softening temperature>550℃), wear resistance and other characteristics. It is widely used in resistance welding electrodes, conductive nozzles, aviation components and mechanical parts under high temperature conditions.

C51000, also known as phosphor bronze (5% Sn), is a copper-tin-phosphorus alloy renowned for its high strength, corrosion resistance, and fatigue resistance. It contains 93.6–95.6% Cu, 4.2–5.8% Sn, and 0.03–0.35% P, with trace amounts of Fe, Zn, and Pb . This alloy is widely used in demanding applications such as springs, switch components, fasteners, bearings (e.g., aircraft bushings), and chemical hardware due to its excellent cold workability and durability under cyclic stresses .

C71500 (UNS designation), also known as 70/30 Cupronickel, is a copper-nickel alloy containing ~30% Ni with small additions of Fe and Mn. It is highly valued for its exceptional corrosion resistance in marine environments, high thermal conductivity, and mechanical strength under extreme conditions. This alloy is widely used in seawater systems, heat exchangers, and offshore infrastructure due to its ability to resist biofouling, erosion, and chloride-induced stress corrosion cracking.

C21000 is a high-conductivity brass alloy composed primarily of copper (94–96%) with zinc as the balancing element, along with trace amounts of iron (≤0.05%) and lead (≤0.05%) . It is classified as a 95% copper brass (CuZn5) and is notable for its excellent thermal and electrical conductivity, corrosion resistance (especially in marine environments), and non-magnetic properties . The alloy also exhibits good cold and hot workability, making it suitable for applications like heat exchangers, marine hardware, electrical components, and condenser tubes .

C61300 is a high-performance aluminum bronze copper alloy characterized by its exceptional mechanical strength, corrosion resistance, and adaptability to demanding environments. It contains 88.5–91.5% Cu, 6.0–7.5% Al, and smaller amounts of Fe, Sn, and other elements, offering a unique balance of durability and workability . This alloy is widely used in marine hardware, pressure vessels, heat exchangers, and heavy machinery due to its resistance to stress corrosion cracking and erosion in seawater .

C90500, commonly designated as "Gun Metal" (SAE 62 or CDA 905), is a tin bronze alloy renowned for its balanced mechanical properties and industrial versatility. It is not a pure oxygen-free copper but a copper-based alloy primarily composed of copper (88–89%), tin (9–10%), zinc (1–2%), and trace elements like lead, nickel, and phosphorus [1]. This alloy exhibits exceptional wear resistance, corrosion resistance, and castability, making it ideal for high-stress applications such as bearings, pump impellers, valve components, and steam fittings . Its mechanical properties include a tensile strength of 45 KSI, yield strength of 22 KSI, and 25% elongation, with a Brinell hardness of 75 . Additionally, it demonstrates moderate electrical conductivity (11% IACS) and thermal conductivity (43.2 BTU/(sq ft-ft-hr-°F))

C63020 is a high-strength nickel-aluminum bronze alloy containing iron and nickel, classified as a heat-resistant bronze with exceptional stability in high-temperature environments (up to 400–500°C).

C35330 is a dezincification-resistant (DZR) brass alloy primarily composed of copper, zinc, lead, and trace arsenic. It is designed to withstand corrosive environments, particularly chlorinated water systems, while maintaining excellent machinability and cold-forming properties. The alloy’s alpha-phase structure, combined with heat treatment, ensures resistance to dezincification—a common failure mode in high-zinc brasses exposed to aggressive fluids. Typical applications include plumbing hardware, valve components, and fittings in potable water systems .

C61000 is a high-performance aluminum bronze alloy primarily composed of copper (90.0–93.0%) and aluminum (6.0–8.5%), with trace amounts of iron, zinc, silicon, and lead
. It is renowned for its exceptional mechanical properties, including high tensile strength (up to 700 MPa after heat treatment), yield strength, and hardness (e.g., Brinell hardness of 150–200 HB) . The alloy exhibits excellent corrosion resistance in atmospheric, freshwater, seawater, and mildly acidic environments (e.g., sulfuric acid) but is unsuitable for nitric acid applications . Its electrical conductivity (17% IACS) and thermal conductivity make it suitable for electrical components, while its non-magnetic nature and 18K gold-like appearance enhance its utility in decorative and marine applications .