TECHNICAL DATASHEET CuZn39Pb3 Revision 13 …

1 TECHNICAL DATASHEET This leaflet is for general information only and is not subject to Revision . No claims can be derived from it unless there is evidence of intent or gross negligence. The data given are no warranty that the product is of a specified quality and they cannot replace expert advice or the customer s own test. Cu [%] Pb [%] Zn [%] 57,0 59,0 2,5 3,5 rem. Melting point [ C] Density [g/cm ] Specific heat cap. at 20 C [kJ/kgK] Electrical cond. [MS/m] Thermal cond. at 20 C [W/mK] Mod. of elasticity [GPa] Coef. of therm exp. at 20 C [10-6/K] 888 8,47 0,377 14,6 113 96 21,4 Diameter [mm] Tensile strength Rm [MPa] Yield strength [MPa] Elon-gation min [%] Hardness HV [-] Hardness HB [-] R450 0,5 1,5 > 450 (200) R430 H130 1,5 4,0 > 430 (200) 130-165 R420 H120 4,0 8,0 > 420 (200) 8 120-155 R410 8,0 14,0 > 410 (200) R520 0,5 1,5 > 520 (400) R510 H155 1,5 4,0 > 510 (400) 155-185 R500 4,0 8,0 > 500 (390) 6 R490 H145 8,0 14,0 > 490 (390) 145-175 R570 H170 1,5 4,0 > 570 (520) > 170 CuZn39Pb3 Comparable standards: Revision 13 03 EUAurubis designations: PNA253 EN CW614N UNS C38500 BS CZ121 CuZn39Pb3 is mainly used where machinable or machining forming is required.

2 The material is particularly suitable for the treatment on machines. It has an excellent hot working property. In Germany CuZn39Pb3 is the benchmark material for the assessment of the machinability (index 100%). Description Composition Mechanical properties Physical properties The specified conductivity applies to the soft condition only TECHNICAL DATASHEET This leaflet is for general information only and is not subject to Revision . No claims can be derived from it unless there is evidence of intent or gross negligence. The data given are no warranty that the product is of a specified quality and they cannot replace expert advice or the customer s own test. Machinability* 100% Cold formability poor Hot formability good Resistance welding fair Oxyacetylene welding not recommended Inert gas shield arc welding poor Brazing fair Soldering excellent Melting range 875 890 C Hot working 625 725 C Soft annealing 450 600 C Thermal stress relieving 250 350 C Drawn wires Conform Round wire 2,0 14,5 mm 6,0 15,0 mm Square wire 3,5 12,0 mm On request Hexagonal wire 3,5 12,0 mm Flat wire 3,0 14,0 mm* Profiled wire Cross-section** 10 150 mm2 Steel drums Pack coiling Coils Tubular carriers Bulk coils* max.

3 Kg 300 1200 kg 30 150 kg 400 kg max. 4000 kg Fabrication properties Typical uses Mechanical and electrical components, screws, clamps, connector pins Heat treatment CuZn39Pb3 *The evaluation of machinability is not an absolute measured value. It rather is a comparative rating ( CuZn39Pb3 =100%). Ratings from other sources might be different. Corrosion resistance Poor resistance to water, several saline solutions and organic fluids compared to a homogeneous -brass. Not resistant to acid, damp sulfur compounder, damp ammonia, especially sensitive to stress corrosion cracking and dezincification in a not stress relieved condition. Shapes and dimensions Form of delivery *The delivery of bulk coils is only possible on request for soft, round wires. However, this has to be checked in detail.

4 * Specifications of width to height on request ** Spooled circumference max. 14 mm