C712R

CW712R, recognized as naval brass, holds significant relevance in applications involving machine hardware, screw machine products, and valve stems. Notably, CW712R naval brass stands out as an excellent choice for hot forging, pressing, and machining operations. Boasting elevated ductility, this naval brass variant also excels in terms of electrical and thermal conductivity. Additionally, CW712R naval brass showcases commendable resistance to creep and remarkable impact strength.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu61.0063.00
Pb0.200.60
Sn1.001.50
Fe0.000.10
Ni0.000.20
Total Others0.20
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO EN12165 (AS PER TEMPER H080)
Range (mm) From To UTS Min PS Min Elongation Min Hardness Min (HRB) Hardness Max (HRB)
Round (Dia)87580140
Hex (A/F)86580140
Square (A/F)86080140
PHYSICAL PROPERTIES
Melting Point – Liquidus°F1650
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 Rating50

CW712R

Send Enquiry