Czech Republic · CSN

CuZn20

CSN EN 12449

Chemical composition

wt% · log scale
0.010.11101001000Al0.02Cu79 – 81Fe0.05Ni0.3Pb0.05Sn0.1Total Others0.1
  • min – max range
  • typical value

Mechanical properties

value range by condition
HardnessHVHardnessHBSeamless tubes, H055, < 20 mmHardnessHVHardnessHBSeamless tubes, H085, < 10 mmHardnessHVHardnessHBSeamless tubes, H115, < 5 mmYield strength Rp0.2≤160 MPaTensile strength Rm≥260 MPaElongation A≥45 %Seamless tubes, R260, < 20 mm

Chemical composition

ElementminmaxSimilarRemarks
Al0.02
Cu7981
Fe0.05
Ni0.3
Pb0.05
Sn0.1
Total Others0.1
Zn​​Bal​​

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
Seamless tubes, H055, < 20 mmHV 55–85；HB 50–80
Seamless tubes, H085, < 10 mmHV 85–120；HB 80–115
Seamless tubes, H115, < 5 mmHV ≥115；HB ≥110
Seamless tubes, R260, < 20 mm≤160≥260≥45
Seamless tubes, R320, < 10 mm≥200≥320≥25
Seamless tubes, R390, < 5 mm≥300≥390≥10

Physical properties

Elastic modulusMean thermal expansionThermal conductivitySpecific heatResistivityDensityPoisson's ratio
8.70

Similar grades

GradeRegionSystem
CW503LItalyUNI
CW503LSpainUNE
CuZn20SpainUNE
CW503LSwedenSS
CW503LSwitzerlandSNV
CuZn20SwitzerlandSNV
CW503LFinlandSFS
CuZn20FinlandSFS
CW503LPolandPN
CuZn20PolandPN
CW503LAustriaONORM
CuZn20AustriaONORM
CW503LNorwayNS
CuZn20NorwayNS
CW503LBelgiumNBN
CuZn20BelgiumNBN
CW503LHungaryMSZ
CuZn20HungaryMSZ
CW503LGermanyDIN
CW503LCzech RepublicCSN
CW503LUnited KingdomB.S.
CW503LBulgariaBDS
CuZn20BulgariaBDS
CW503LRomaniaASRO
CuZn20RomaniaASRO
CW503LFranceAFNOR NF
CuZn20FranceAFNOR NF
CuZn20ItalyUNI
CuZn20United KingdomB.S.
C24000United StatesUNS
CuZn20SwedenSS
CuZn 20GermanyDIN