C4622

C4622 Naval Brass is prominently employed in various applications, notably for machine hardware, screw machine products, and valve stems. This alloy, known as C4622 Naval Brass, exhibits superior suitability for hot forging, pressing, and machining procedures. Possessing elevated ductility, C4622 Naval Brass also boasts exceptional electrical and thermal conductivity. Furthermore, it showcases commendable resistance to creep and impressively high impact strength.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu61.0064.00
Pb0.30
Sn0.701.50
Fe0.20
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO BS287 (AS PER TEMPER M)
Range (mm) From To UTS Min (MPa) PS Min Elongation Min (%) Hardness Min (HRB) Hardness Max (HRB)
Round (Dia)1.57536520
Hex (A/F)37036520
Square (A/F)36036520
Rectangle (Thickness)35036520
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

C4622

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