CZ134

CZ134, identified as naval brass, finds significant application in machine hardware, screw machine products, and valve stems. This particular variant of naval brass, designated as CZ134, is notably well-suited for processes involving hot forging, pressing, and machining. Featuring heightened ductility, naval brass exhibits exceptional electrical and thermal conductivity. Additionally, CZ134 naval brass showcases commendable resistance to creep and impressively high impact strength.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu59.0062.00
Pb1.302.20
Sn0.501.00
Fe0.10
Total Others0.20
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 Hardness Max
Round (Dia)61840017015
184035015020
Hex (A/F)61840017015
184035015020
Square (A/F)61840017015
184035015020
Rectangle (Thickness)61840017015
184035015020
PHYSICAL PROPERTIES
Melting Points – Liquidus 0F1650
Melting Point – Solidus°F1630
Density lb/cu in. at 68°F0.305
Specific Gravity8.44
Electrical Conductivity % IACS at 68°F26
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F67
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)11.8
Specific Heat Capacity Btu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tension ksi15000
Modulus of Rigidity ksi5600
FABRICATION PROPERTIES
TechniqueSuitability
SolderingExcellent
BrazingGood
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended
Spot WeldNot Recommended
Seam WeldNot Recommended
Butt WeldFair
Capacity for Being Cold WorkedPoor
Capacity for Being Hot FormedGood
Forgeability Rating90
Machinability Rating70

CZ134

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