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Brass Extrusion and Components
Free machining brass is a copper-zinc alloy specially designed to have excellent machinability. It typically contains about 55-63% copper, with zinc making up the balance and lead content ranging from 1.5% to 3.7%. The addition of lead functions as a lubricant during machining, reducing friction and producing short, broken chips for efficient and high-speed cutting processes. This alloy is known for its good corrosion resistance, high strength, reliable electrical conductivity, and bright finish, making it ideal for manufacturing precision components in industries such as plumbing, electronics, automotive, and hardware. Its machinability rating is often considered the benchmark for other alloys. Free machining brass also contributes to cost-effectiveness by reducing tooling wear and enabling close-tolerance manufacturing.
Free machining brass is a copper-zinc alloy specially designed to have excellent machinability. It typically contains about 55-63% copper, with zinc making up the balance and lead content ranging from 1.5% to 3.7%. The addition of lead functions as a lubricant during machining, reducing friction and producing short, broken chips for efficient and high-speed cutting processes. This alloy is known for its good corrosion resistance, high strength, reliable electrical conductivity, and bright finish, making it ideal for manufacturing precision components in industries such as plumbing, electronics, automotive, and hardware. Its machinability rating is often considered the benchmark for other alloys. Free machining brass also contributes to cost-effectiveness by reducing tooling wear and enabling close-tolerance manufacturing.
Equivalent free machining brass grades with their ISO symbols and international standards are:
Equivalent free machining brass grades with their ISO symbols and international standards are:
- CuZn36Pb3 (ISO), which corresponds to UNS C36000, C35600, C36010, EN CW603N, BS CZ124, JIS C3601/C3602, and IS 319 Grade II.
- CuZn39Pb3 (ISO), equivalent to UNS C38500, EN CW614N, BS CZ121Pb3, JIS C3603/C3604, and IS 319 Grade I.
These equivalents ensure global compatibility and standardisation for manufacturers and engineers, supporting consistent quality and machinability across different regions.
These equivalents ensure global compatibility and standardisation for manufacturers and engineers, supporting consistent quality and machinability across different regions.
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