C37000 CuZn39Pb1 Free Cutting Brass Bar
C37000, Engraving brass, are 60/40 alpha-beta brasses with lead added to give free machining properties. They should not be used for acid etched work, for which the single phase alpha brasses should be used.
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DESCRIPTION

C37000, Engraving brass, are 60/40 alpha-beta brasses with lead added to give free machining properties. They should not be used for acid etched work, for which the single phase alpha brasses should be used.

CHEMICAL COMPOSITION

ElementsMin(%)Max(%)
Cu59.0062.00
Pb0.81.50
Fe-0.15
Total Others-0.40
ZnRemainder


MECHANICAL PROPERTIES ACCORDING TO ASTM B124

Mechanical Property requirement, if any, are to be established by agreement between the manufacturer and the purchaser.

PHYSICAL PROPERTIES
Melting Point -Liquidus°F1650
Melting Point -Solidus°F1630
Density lb/cu in.at 68°F0.304
Specific Gravity8.41
Electrical Conductivity %IACS at 68°F27
Thermal Conductivity Btu/ sq ft/ft hr/°F at 68°F69
Coefficient of Thermal Expansion 68-57210-6 per°F(68-572°11.6
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 Are WeldingNot Recommended
Coated Metal Are WeldingNot Recommended
Spot WeldNot Recommended
Seam  WeldNot Recommended
Butt WeldFair
Capacity for Being Cold WorkedFair
Capacity for Being Hot FormedExcellent
Machinability Rating70

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