LEADED BRASS

DESCRIPTION 

 

C34500
SPEC SHEET

C34500 are the standard materials for machining (machining index 100 %). These alloys are also particularly suitable for hot stamping when the forged parts are subsequently machined extensively. Is recommended for applications where cold working with little reduction such as knurling is used. The ductility of this material makes it particularly suitable for the manufacture of wires as well as rods and sections.

 
 

CHEMICAL COMPOSITION

ElementsMin (%)Max (%)
Cu62.0065.00
Pb1.502.50
Fe0.15
Total Others0.4
ZnRemainder
 
MECHANICAL PROPERTIES ACCORDING TO ASTM B453 (AS PER TEMPER HO2)
Range (Inch)FromToUTS Min (ksi)UTS Max (ksi)PS Min (ksi)Elongation Min (%)Hardness Min (HRB)Hardness Max (HRB)
Round (Dia)0.0590.50057802576080
0.5001.000557025105075
1.0002.953506220154070
Hex (A/F)0.1180.50057802576080
0.5001.000557025105075
1.0002.756506220154070
Square (A/F)0.1180.50057802576080
0.5001.000557025105075
1.0002.362506220154070
 
Range (mm)FromToUTS Min (MPa)UTS Max (MPa)PS Min (MPa)Elongation Min (%)Hardness Min (HRB)Hardness Max (HRB)
Round (Dia)1.51239555517076080
1225380485170105075
2575345425140154070
Hex (A/F)31239555517076080
1225380485170105075
2570345425140154070
Square (A/F)31239555517076080
1225380485170105075
2560345425140154070
 
PHYSICAL PROPERTIES
Melting Point – Liquidus°F1700
Melting Point – Solidus°F1630
Density lb/cu in. at 68°F0.306
Specific Gravity8.47
Electrical Conductivity % IACS at 68°F26
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F67
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)11.3
Specific Heat Capacity Btu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tension ksi15000
Modulus of Rigidity ksi5600
FABRICATION PROPERTIES 
TechniqueSuitability
ExcellentExcellent
BrazingGood
Not RecommendedNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended
Spot WeldNot Recommended
Seam WeldNot Recommended
Butt WeldFair
Capacity for Being Cold WorkedFair
Capacity for Being Hot FormedPoor
Machinability Rating90
 

TYPICAL USES

  • Automotive
  • Builders Hardware
  • Consumer
  • Electrical
  • Fasteners
  • Industrial
  • Ordnance
  • Plumbing