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Brass Extrusion and Components
Manganese bronze is a high-strength copper-zinc alloy containing small but critical amounts of manganese, aluminium, and iron as the primary alloying elements. Typically composed of 56-66% copper, 22-28% zinc, 5-7.5% aluminium, 2.5-5% manganese, and 2-4% iron, this alloy achieves exceptional tensile strength exceeding 110,000 psi (760 MPa) while maintaining good corrosion resistance and wear characteristics. Also known as high tensile brass due to its high zinc content, manganese bronze offers superior strength, toughness, and anti-seizing properties compared to conventional brass alloys. The alloy demonstrates excellent performance under high loads and speeds, good hot workability, resistance to dezincification, and maintains mechanical integrity in demanding environments, making it ideal for heavy-duty industrial applications.
Manganese bronze is a high-strength copper-zinc alloy containing small but critical amounts of manganese, aluminium, and iron as the primary alloying elements. Typically composed of 56-66% copper, 22-28% zinc, 5-7.5% aluminium, 2.5-5% manganese, and 2-4% iron, this alloy achieves exceptional tensile strength exceeding 110,000 psi (760 MPa) while maintaining good corrosion resistance and wear characteristics. Also known as high tensile brass due to its high zinc content, manganese bronze offers superior strength, toughness, and anti-seizing properties compared to conventional brass alloys. The alloy demonstrates excellent performance under high loads and speeds, good hot workability, resistance to dezincification, and maintains mechanical integrity in demanding environments, making it ideal for heavy-duty industrial applications.
Equivalent manganese bronze grades with their ISO symbols and international standards are:
Equivalent manganese bronze grades with their ISO symbols and international standards are:
- CuZn26Al4Fe3Mn3 (ISO), equivalent to UNS C86200, JIS CAC303, with no EN, BS, or IS counterparts specified.
- CuZn35Al1Fe1Mn1 (ISO), corresponding to UNS C86500, EN CC766S, BS HTB1, DIN 2.0592, with no JIS or IS equivalents noted.
- CuZn35Ni3Mn2AlPb (ISO), equivalent to EN CW710R, with no UNS, BS, JIS, or IS counterparts specified.
- CuZn36Al4FeMn (ISO), corresponding to BS HTB2 and IS 320 HT-II, with no UNS, EN, or JIS equivalents noted.
- CuZn39FeMn (ISO), corresponding to BS CZ115 and IS 320 HT 1, with no UNS, EN, or JIS equivalents noted.
Additional specialised grades include UNS C86100, C86700, C86800, and Indian standard grades IS 320 HT-I, 6912 FHTB-I, and 6912 FHTB-II, which provide varying strength characteristics and chemical compositions tailored for specific high-load applications.
Additional specialised grades include UNS C86100, C86700, C86800, and Indian standard grades IS 320 HT-I, 6912 FHTB-I, and 6912 FHTB-II, which provide varying strength characteristics and chemical compositions tailored for specific high-load applications.
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