CW713R

CW713R is a distinctive brass alloy recognized for its exceptional wear resistance, primarily attributed to the presence of embedded silicides within its structure. This alloy is extensively employed in the manufacturing of slide bearings and valve guides and finds application in various construction components within the field of mechanical engineering. Furthermore, CW713R is exceptionally well-suited for use in hot stamped parts where elevated mechanical strength and heightened wear resistance are essential attributes.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu57.0059.00
Pb0.200.80
Si0.301.30
Mn1.503.00
Sn0.40
Fe1.00
Ni1.00
Al1.302.30
Total Others0.30
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO EN12164 CW713R (AS PER TEMPER R540)
Range (mm) From To UTS Min (N/mm²) PS Min (N/mm²) Elongation Min (%) Hardness Min Hardness Max
Round (Dia)57554028015
Hex (A/F)56054028015
Square (A/F)56054028015
PHYSICAL PROPERTIES
Electrical conductivity7.8 %IACS
Thermal conductivity63 W/(m•K)
Thermal expansion coefficient (0–300 °C)20.6 10-6/K
Density8.12 g/cm³
Modulus of elasticity93 Gpa
FABRICATION PROPERTIES
Machinability (CuZn39Pb3 = 100 %)50%
Capacity for being cold workedPoor
Capacity for being hot workedexcellent
Resistance welding (butt weld)good
Inert gas shielded arc weldinggood
Gas weldingfair
Hard solderingPoor
Soft solderingPoor
Melting range875 – 910 °C
Hot working600–700 °C
Soft annealing500–650 °C (1–3 hr)
Thermal stress relieving350–450 °C (1-3 hr)

CW713R

Send Enquiry