CW511L

CW511L is a lead-free material designed for applications involving drinking water. It’s suitable for scenarios where water qualities demand dezincification-resistant properties. CW511L can be employed in situations with no high mechanical stresses. This alloy complies with the dezincification-resistant material requirements as per ISO 6509.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu61.5063.50
Pb0.20
Fe0.10
Sn0.10
Ni0.30
Al0.05
As0.020.15
Total Others0.20
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO EN12164 CW511L (AS PER TEMPER R320)
Range (mm) From To UTS Min (N/mm²) PS Min (N/mm²) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 6 60 320 200 20
Hex (A/F) 5 50 320 200 20
Square (A/F) 5 50 320 200 20
PHYSICAL PROPERTIES
Product Property Metric
Coefficient of Thermal Expansion 21.7 10 -6 (20-300 C)
Density 8.41 gm/cm3 @ 20 C
Electrical Conductivity 0.164 MegaSiemens/cm @ 20 C
Electrical Resistivity 6.15 microhm-cm @ 20 C
Melting Point Liquid US 904 C
Melting Point Solid US 899 C
Modulas of Elasticity in Tension 103400 MPa
Modulas of Rigidity 38610 MPa
Specific Gravity 8.39
FABRICATION PROPERTIES 
Joining Technique   Suitability
Brazing Excellent
Butt Weld Good
Capacity for Being Cold Worked Fair
Capacity for Being Hot Formed Excellent
Coated Metal Arc Welding Not Recommended
Forgeability Rating 90
Gas Sheilded Arc Welding Fair
Machinability rating 40
Oxyacetylene Welding Good
Seam Weld Not Recommended
Soldering Excellent
Spot Weld Good

CW511L

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