CZ119

CZ119 stands proudly as the gold standard for machining, boasting a perfect 100% machining index. These alloys also excel in hot stamping, especially when the forged components undergo extensive post-forging machining. It’s the top choice for applications that demand minimal cold working, like knurling. With its remarkable ductility, this material becomes a prime candidate for crafting wires, rods, and sections.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu61.0064.00
Pb1.002.50
Total Others Incl Fe0.30
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO BS2874 (AS PER TEMPER M)
Range (mm) From To UTS Min (N/mm²) PS Min (N/mm²) Elongation Min (%) Hardness Min (HV) Hardness Max
Round (A/F) 1.5 75 340 15 90
Hex (A/F) 3 70 340 15 90
Square (A/F) 3 60 340 15 90
Rectangle (Thickness) 3 50 340 15 90
PHYSICAL PROPERTIES
Melting Point – Liquidus°F 1700
Melting Point – Solidus°F 1630
Density lb/cu in. at 68°F 0.306
Specific Gravity 8.47
Electrical Conductivity % IACS at 68°F 26
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F 67
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 11.3
Specific Heat Capacity Btu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tension ksi 15000
Modulus of Rigidity ksi 5600
FABRICATION PROPERTIES 
Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Not Recommended
Coated Metal Arc Welding Not Recommended
Not Recommended Not Recommended
Seam Weld Not Recommended
Butt Weld Fair
Capacity for Being Cold Worked Good
Capacity for Being Hot Formed Poor
Machinability Rating 85%

CZ119

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