CZ136

Manganese is indeed one of the most versatile elements that can be incorporated into copper alloys. Even in small quantities, manganese serves several crucial functions, including deoxidizing the alloy, improving its mechanical strength, and enhancing its ability to be cast. Manganese contributes to achieving a beneficial blend of properties such as ductility, formability, strain hardening, and various strength-related parameters, making it a valuable addition to copper alloys.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu56.0059.00
Pb3.00
Mn0.501.50
Total Others0.70
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO BS2872 CZ136 (AS PER TEMPER M)
Range (mm) From To UTS Min (N/mm²) PS Min Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 1.51838020
184035025
407535025
Hex (A/F) 31838020
184035025
407035025
Square (A/F) 31838020
184035025
406035025
Rectangle (Thickness) 31838020
184035025
40 50 350 25
Physical Properties Metric English
Density8.40 g/cc0.303 lb/in3
CTE, linear26.0 ᶙm/m-˚C14.4 ᶙin/in-˚F
Specific Heat Capacity0.380 J/g-˚C0.0908 BTU/lb-˚F
Thermal Conductivity113 W/m-K784 BTU-in/hr-ft²-˚F
Melting Point880-900 ˚C1620 – 1650 ˚F
Solidus880 ˚C1620 ˚F
Liquidus900 ˚C1650˚F
FABRICATION PROPERTIES
Machinability (CuZn39Pb3 = 100 %)80.00%
Capacity for Being Cold WorkedPoor
Capacity for Being Hot WorkedEquivalent Alloy

CZ136

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