LEADED BRASS

DESCRIPTION 

 

IS 319 Gr III
SPEC SHEET

IS 319 Gr III: A ductile alloy with good machinability as well as bending and cold heading properties. Suitable for bicycle spoke nipples.

CHEMICAL COMPOSITION

ElementsMin (%)Max (%)
Cu62.0063.00
Pb0.501.50
Fe0.20
Total Others0.50
ZnRemainder
 
MECHANICAL PROPERTIES ACCORDING TO IS 319 GR III (AS PER TEMPER HB)
Range (mm)FromToUTS Min (MPa)PS Min (MPa)Elongation Min (%)Hardness MinHardness Max
Round (Dia)6123558
122534512
255030522
507528527
Hex (A/F)6123558
122534512
255030522
507528527
Square (A/F)6123558
122534512
255030522
507528527
 
PHYSICAL PROPERTIES
Density8.46 g/cm3
Melting Point910°C
Specific heat cap at 20˚C0.377 (kj/kgK)
Electrical conductivity14.7 (MS/m)
Mod of elasticity105 (GPa)
Coef of therm exp at 20˚C20.4 (10-6 /K)
Thermal Conductivity116 W/m.K
FABRICATION PROPERTIES 
Machinability (CuZn39Pb3 = 100 %)80%
Capacity for being cold workedpoor
Capacity for being hot workedFair
Suitability for solderingExcellent
Suitability for BrazingGood
 

TYPICAL USES

  • Precision Components Machining with Riveting operation.