CZ133

CZ133, commonly known as naval brass, is a favored choice frequently employed across a diverse spectrum of marine and subsea applications. Renowned for its exceptional combination of superior strength and robust corrosion resistance, this brass alloy also demonstrates effective property retention even at cryogenic temperatures. Notably, CZ133 displays excellent hot formability and showcases a highly commendable level of corrosion resistance.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu59.0062.00
Pb0.20
Sn0.501.00
Fe0.10
Total Others0.40
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)61840017020
184035015025
Hex (A/F)61840017020
184035015025
Square (A/F)61840017020
184035015025
Rectangle (Thickness)61840017020
184035015025
PHYSICAL PROPERTIES
Melting Points – Liquidus 0F1650
Melting Points – Solidus 0F1630
Density lb/cu in. at 68 0F0.304
Specific Gravity8.41
Electrical Conductivity % IACS at 68 0F26
Thermal conductivity Btu/ Sq ft / ft hr / 0F at 680F67
Coefficient of Thermal Expansion 68-57210 -6 Per 0F (68-5720F)11.8
Specific Heat capacity Btu/ lb /0F at 680F0.09
Modulus of Elasticity in Tension ksi15000
Modulus of Rigidity ksi5600
FABRICATION PROPERTIES
TechniqueSuitability
Capacity for being Cold WorkedFair
Hot WorkedExcellent
Machinability Rating30%
Forgeability Rating90%
Silver Alloy BrazingExcellent
Soft SolderingExcellent
Oxyacetylene WeldingGood

CZ133

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