Brass Strip[2]
Overview
Brass Strip is a rolled flat product made from copper-zinc alloys, typically containing 60-90% copper and 10-40% zinc. Its golden appearance and balanced properties make it a preferred material for both functional and decorative purposes. The alloy's versatility stems from its adjustable zinc content, which allows manufacturers to tailor characteristics like strength, corrosion resistance, and color. Commonly standardized under designations like C26000 (cartridge brass), it is supplied in coils or straight lengths with thicknesses ranging from 0.1mm to 6mm.
Physical and Chemical Properties
Brass strips exhibit a unique combination of high electrical conductivity (about 28% IACS) and thermal conductivity, making them ideal for electrical applications. The material's malleability allows for precise stamping and bending without cracking. Corrosion resistance is another hallmark, particularly against water and atmospheric exposure, though dezincification can occur in harsh environments. Alloys with added elements like tin (e.g., naval brass) further enhance seawater resistance. The typical tensile strength ranges from 300-500 MPa, depending on temper (e.g., soft, half-hard).
Main Applications
In electronics, brass strips serve as connectors, terminals, and shielding due to their conductivity and EMI protection. The construction industry uses them for architectural trims, door fittings, and roofing details where aesthetics matter. Industrial applications include radiator fins, heat exchanger components, and precision machined parts. Decorative uses span musical instruments, jewelry, and antique restoration. Specialized variants like free-cutting brass (C36000) are favored for intricate CNC machining.
Safety and Storage
While brass is generally safe to handle, precautions are needed during machining to prevent inhalation of zinc oxide fumes, which can cause metal fume fever. Proper ventilation and PPE (e.g., respirators) are recommended for grinding or welding operations. Storage should prioritize dryness to prevent surface oxidation. Stack coils on wooden pallets with moisture barriers; avoid contact with acidic substances or ammonia-based cleaners, which can cause stress corrosion cracking.
B2B Procurement Guide
Buyers should specify key parameters: alloy grade (e.g., C26800 for drawn components), temper (O for soft, H for hard), thickness tolerance (e.g., ±0.02mm), and surface finish (mill, polished, or coated). Bulk orders (1+ tons) often qualify for 10-15% discounts. Lead times vary from 2 weeks for standard stocks to 8 weeks for custom widths. Reputable suppliers provide material certifications (e.g., RoHS, ASTM B36) and can assist with prototyping.
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