CZ135

CZ135 is classified as a high tensile brass alloy that incorporates elements such as aluminum, manganese, silicon, and others. This alloy’s unique combination of elements results in a material that offers nearly the hardness of aluminum bronze but is significantly more processable. Additionally, CZ135 exhibits good corrosion resistance and wear resistance, making it a versatile choice for various applications.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu57.0060.00
Pb0.80
Sn0.30
Fe0.50
Al1.002.00
Mn1.503.50
Ni0.20
Si0.301.30
Total Others (excl.Sn,Pb,Fe,Ni)0.50
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO BS2874 CZ135 (AS PER TEMPER M)
Range (mm) From To UTS Min (N/mm²) PS Min (N/mm²) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 1.54055027012
407555027012
Hex (A/F) 34055027012
407055027012
Square (A/F) 34055027012
406055027012
Rectangle (Thickness) 34055027012
405055027012
PHYSICAL PROPERTIES
Melting Point875-910 ˚C
Density8.0 g/cm³
Electrical Conductivity7-8 MS/m
Heat conductivity60-70 W/(m*K)
Heat capacity377 J/(kg*K)
Coefficient of thermal expansion 20 10-6/ K
Young’s modulus95 GPa
FABRICATION PROPERTIES
Technique Suitability
Cold formed Poor
Hot workedGood
Machinability Rating 30%
Resistance to corrosionExcellent
Suitability for solderingExcellent

CZ135

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