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INTERNATIONAL STANDARD PRODUCT ALLOYS
Copper-Zinc-Lead Alloys for free machining Purposes and for hot Forging ( Free Machining Brass)
Cu - Zn - Pb
EUROPE GERMANY U.S.A U.K FRANCE JAPAN
EN DIN UNS BS NS JIS
SEMBOL NO SEMBOL NO      
CuZn39Pb3 CW614N CuZn39Pb3 2,0401 C38500 CZ121Pb3 CuZn40Pb3 C3603 - C3604
CuZn36Pb3 CW603N CuZn36Pb3  2,0375 C36000 CZ124 CuZn36Pb3 C3601- C3602
CuZn40Pb2 CW617N CuZn40Pb2 2,0402 C37710 CZ122   C3771
CuZn39Pb2 CW612N CuZn39Pb2 2,0380 C37700 CZ120 CuZn39Pb2  
CuZn38Pb2 CW608N CuZn38Pb1,5 2,0371 C37700 CZ128    
CuZn36Pb2As CW602N     C35330 CZ132    
CuZn37Pb2 CW606N     C35300 CZ131    
CHEMICAL COMPOSITION
ALLOY ALLOY Cu Zn Pb Al Fe Ni Sn As Other( Mn,Si,Bi,As )
  Number % % max. % % max
CuZn39Pb3 CW614N 57 - 59 REST 2,50 - 3,50 0,05 0,30 0,30 0,30   0,20
CuZn36Pb3 CW603N 60 - 62 REST 2,50 - 3,50 0,05 0,30 0,30 0,20   0,20
CuZn40Pb2 CW617N 57 - 59 REST 1,60 - 2,50 0,05 0,30 0,30 0,30   0,20
CuZn39Pb2 CW612N 59 - 60 REST 1,60 - 2,50 0,05 0,30 0,30 0,30   0,20
CuZn38Pb2 CW608N 58 - 61 REST 1,50 - 2,50 0,05 0,30 0,30 0,30   0,20
CuZn36Pb2As CW602N 61 - 63 REST 1,70 - 2,80 0,05 0,10 0,20 0,10 0,02- 0,15 0,20
CuZn37Pb2 CW606N 60 - 62 REST 1,50 - 2,50 0,05 0,30 0,30 0,20   0,20
 MECHANICAL PROPERTIES
ALLOY ALLOY  TENSILE STRENGTH YIELD ELONGATION HARDNESS
      STRENGTH    
  Number ( N / mm2 ) ( N / mm2 ) ( % ) ( HV )
CuZn39Pb3 CW614N 340 - 600 180 - 480 10 - 40, 90 - 175
CuZn36Pb3 CW603N 360 - 520 150 - 500 12 - 45, 80 - 155
CuZn40Pb2 CW617N 400 - 570 180 - 490 10 - 35, 95 - 175
CuZn39Pb2 CW612N 360 - 560 270 - 510 12 - 30, 90 - 180
CuZn38Pb2 CW608N 380 - 540 140 - 520 10 - 45, 80 - 160
CuZn36Pb2As CW602N 350 - 460 140 - 400 15 - 30, 80 - 140
CuZn37Pb2 CW606N 360 - 520 150 - 450 15 - 35, 85 - 150
                                                                    PHYSICAL PROPERTIES
ALLOY ALLOY  DENSITY MODULUS OF COEFFICI OF THERMAL
MELTING
 
THERMAL ELECTRICAL  
      ELASTICITY RANGE EXPANSION CONDUCTIVITY CONDUCTIVITY
  NO ( Kg / dm3 )  ( kN / mm2 ) =( GPa) (  °C ) ( 20 - 300 °C ) 10 / K ( W / mK ) ( %IACS ) MS / m
CuZn39Pb3 CW614N 8,46 96 880 - 895 21,40 113 25,00 14,60
CuZn36Pb3 CW603N 8,50 102 885 - 900 20,60 100 22,00 13,00
CuZn40Pb2 CW617N 8,43 96 880 - 895 21,10 113 25,00 14,90
CuZn39Pb2 CW612N 8,43 102 885 - 910 21,10 109 24,10 14,00
CuZn38Pb2 CW608N 8,44 102 895 - 900 20,40 109 24,00 14,00
CuZn36Pb2As CW602N 8,50 105 885 - 910 20,80 105 25,00 15,00
CuZn37Pb2 CW606N 8,45 105 885 - 910 20,40 105 24,00 14,00
INFORMATION REGARDING PROCESSING
ALLOY  ALLOY MACHINABILITY COLD HOT HOT
    INDEX  ( %  )*    
WORK
  NO   WORKING WORKING TEMPERATURE  °C
CuZn39Pb3 CW614N 100 POOR / MEDIUM EXCELLENT 650 - 800
CuZn36Pb3 CW603N 90 MUDIUM / GOOD GOOD 700 - 800
CuZn40Pb2 CW617N 95  MEDIUM VERY GOOD 650 - 800
CuZn39Pb2 CW612N 80 POOR  EXCELLENT 700 - 800
CuZn38Pb2 CW608N 90 MEDIUM    GOOG 650 - 750
CuZn36Pb2As CW602N 80 GOOD POOR 720 - 830
CuZn37Pb2 CW606N 85 EXCELLENT FAIR 650 - 750


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