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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.

Description


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

Elements

Min(%)

Max(%)

Cu

59.00

62.00

Pb

0.8

1.50

Fe

-

0.15

Total Others

-

0.40

Zn

Remainder


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°F

1650

Melting Point -Solidus°F

1630

Density lb/cu in.at 68°F

0.304

Specific Gravity

8.41

Electrical Conductivity %IACS at 68°F

27

Thermal Conductivity Btu/ sq ft/ft hr/°F at 68°F

69

Coefficient of Thermal Expansion 68-57210-6 per°F(68-572°

11.6

Specific Heat Capacity Btu/lb /°F at 68°F

0.09

Modulus of Elasticity in Tension ksi

15000

Modulus of Rigidity ksi

5600

FABRICATION PROPERTIES

Technique

Suitability

Soldering

Excellent

Brazing

Good

Oxyacetylene Welding

Not Recommended

Gas shielded Are Welding

Not Recommended

Coated Metal Are Welding

Not Recommended

Spot Weld

Not Recommended

Seam  Weld

Not Recommended

Butt Weld

Fair

Capacity for Being Cold Worked

Fair

Capacity for Being Hot Formed

Excellent

Machinability Rating

70

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