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C31400 Leaded Commercial Bronze (CDA 314)

Short Description:

Leaded Commercial Bronze C31400 combines the natural corrosion resistance of C22000 with the machinability typical of leaded brasses. Like C22000, it is an alpha brass nominally composed of 89% copper and 9% zinc, but it also contains approximately 2% lead to impart free-cutting characteristics. The relatively low zinc content of C31400 provides excellent corrosion resistance in potable water along with a pleasing golden color that matches C22000 hardware. Alloy C31400 is also suitable for outdoor use due to its resistance to stress corrosion cracking and to corrosion in general, but where the highest strength is not required.

Typical Uses for C31400 Leaded Commercial Bronze:

BUILDERS HARDWARE: Door Knobs

ELECTRICAL: Connectors for Wire and Cable, Electrical Plug Type Connectors

FASTENERS: Screws, Nuts

INDUSTRIAL: Pickling Fixtures, Pickling Racks, Pickling Crates, Screw Machine Parts

Sizes Available From JMH

SOLID BAR . . . . . . . . . . 3/16" - 3 1/2" diameter

HEX BAR . . . . . . . . . . . . 3/8" - 2" across the flats

END PRODUCTSPECIFICATION
Bar ASTM B140
Rod ASTM B140
Shapes ASTM B140
Valves MILITARY MIL-V-18436


PRODUCT PROPERTYUS CUSTOMARYMETRIC
Coefficient of Thermal Expansion 10.2 . 10-6 per oF (68-572 F) 18.4 . 10 6? per å¡C (20-300 C)
Density 0.319 lb/in3 @ 68 F 8.83 gm/cm3 @ 20 C
Electrical Conductivity 42 %IACS @ 68 F 0.246 MegaSiemens/cm @ 20 C
Electrical Resistivity 24.7 ohms-cmil/ft @ 68 F 4.11 microhm-cm @ 20 C
Melting Point Liquid US 1900 F 1038 C
Melting Point Solid US 1850 F 1010 C
Modulas of Elasticity in Tension 17000 ksi 117000 MPa
Modulas of Rigidity 6400 ksi 44130 MPa
Specific Gravity 8.83 8.83
Specific Heat Capacity 0.09 Btu/lb/å¡F @ 68 F 377.1 J/kg . å¡K at 293 K
Thermal Conductivity 104.0 Btu . ft/(hr . ft2 . å¡F) @ 68 F 180.0 W/m . å¡K at 20 C


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