CZ122

DESCRIPTION

CZ122 are the reference materials for hot working. The mean Lead content provides good machinability of the drop-forged part. Because of its, Composition the alloy is also suited for the production of drawn and complex profile.

CHEMICAL COMPOSITION

Elements Min (%) Max (%)
Cu 56.50 58.50
Pb 1.50 2.50
Fe - 0.30
Total Others - 0.70
Zn Remainder

MECHANICAL PROPERTIES ACCORDING TO BS2874 (AS PER TEMPER M)

Range From To UTS Min (N/mm²) PS Min Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 1.5 18 380 - 25 - -
18 40 380 - 25 - -
40 75 350 - 28 - -
Hex (A/F) 3 18 380 - 25 - -
18 40 380 - 25 - -
40 70 350 - 28 - -
Square (A/F) 3 18 380 - 25 - -
18 40 380 - 25 - -
40 60 350 - 28 - -
Rectangle (Thickness) 3 18 380 - 25 - -
18 40 380 - 25 - -
40 50 350 - 28 - -
PHYSICAL PROPERTIES
Physical Properties Metric English
Density 8.40 g/cc 0.303 lb/in3
CTE, linear 26.0 ᶙm/m-˚C 14.4 ᶙin/in-˚F
Specific Heat Capacity 0.380 J/g-˚C 0.0908 BTU/lb-˚F
Thermal Conductivity 113 W/m-K 784 BTU-in/hr-ft²-˚F
Melting Point 880-900 ˚C 1620 – 1650 ˚F
Solidus 880 ˚C 1620 ˚F
Liquidus 900 ˚C 1650˚F
FABRICATION PROPERTIES
Forming Suitability
Machinability (CuZn39Pb3 = 100 %) 95.00%
Capacity for Being Cold Worked Poor
Capacity for Being Hot Worked Excellent

TYPICAL USES

  • Architecture
  • Builders Hardware