LEADED BRASS

Metals

Brass
Bronze
17
18
19
20
21
22
23

DESCRIPTION

 

CW622N
SPEC SHEET

CW622N Leaded brass, is a significantly improved form of 60/40 brass, It is used in the mass production of brass components where maximum output and longest tool life are required, and where no further cold forming after machining is required.

 
 

CHEMICAL COMPOSITION

ElementsMin (%)Max (%)
Cu55.0057.00
Pb0.81.60
Sn–0.30
Fe–0.30
Al0.50.5
Ni–0.30
Total Others–0.20
ZnRemainder
 
MECHANICAL PROPERTIES ACCORDING TO BS2874 (AS PER TEMPER M)

No Mechanical properties for this alloy. Mechanical properties as agreed between punchers and supplier.

 
PHYSICAL PROPERTIES
Electrical conductivity %IACS25
Thermal conductivity W/(m·K)113
 10-6 /K 21.40 10-6 /K 21.40
Density8.46 g/cm3
Modulus of elasticity96 Gpa
FABRICATION PROPERTIES 
Machinability (CuZn39Pb3 = 100 %)80%
Capacity for being cold workedPoor
Capacity for being hot workedExcellent
Resistance welding (butt weld)Fair
Inert gas shielded arc weldingPoor
Gas weldingPoor
Hard solderingFair
Soft solderingExcellent
Melting range880–895 °C
Hot working650–800 °C
Soft annealing  (1–3 h)450–600 °C
Thermal stress relieving (1–3 h)200–300 °C
 

TYPICAL USES

  • Builders Hardware
  • Consumer
  • Building
  • Industrial