C31400 LEADED COMMERCIAL BRONZE

C31400 LEADED COMMERCIAL BRONZE
C31400 LEADED COMMERCIAL BRONZE
Product Description
C31400 Leaded Commercial Bronze

Spec Equivalents: ASTM B140

The C31400 Leaded Commercial Bronze is the combination of natural corrosion resistance with the machining ability of leaded brass. It is the combination of 89% copper and 9% zinc and also contains 2% lead that provides free-cutting characteristics. The low zinc content provides corrosion resistance in potable water with a golden color. The alloy is suitable for outdoor use owing to its resistance towards stress corrosion cracking and where the highest strength is not required.

Applications:
  • 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

Specifications:

End Product

Specification

Bar

ASTM B140

Rod

ASTM B140

Shapes

ASTM B140

Valves

MILITARY MIL-V-18436

Chemical Composition:

 

Cu

Fe

Pb

Ni

Zn


Min/Max

87.5 - 90.5

0.1

1.3 - 2.5

0.7

Rem


Nominals

89

-

1.9

-

9.1


Fabrication:

Joining Technique

Suitability

Brazing

Good

Butt Weld

Fair

Capacity for Being Cold Worked

Good

Capacity for Being Hot Formed

Poor

Coated Metal Arc Welding

Not Recommended

Gas Sheilded Arc Welding

Not Recommended

Machinability rating

80

Oxyacetylene Welding

Not Recommended

Seam Weld

Not Recommended

Soldering

Excellent

Spot Weld

Not Recommended

Physical Properties:

Product Property

US Customary

Metric

Coefficient of Thermal Expansion

10.2 ·10-6 per oF (68-572 F)

18.4 · 10 6 per °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/°F @ 68 F

377.1 J/kg · °K at 293 K

Thermal Conductivity

104.0 Btu · ft/(hr · ft2 ·°F) @ 68 F

180.0 W/m · °K at 20 C

Sizes Available:

HOLLOW RODS

Min Bore Size 20 mm and Max OD 100 mm

ROUND RODS

6mm To 130 mm

HEX

5mm To 60mm

SQUARE

4mm To 60mm

FLAT

5mm Min Thickness and max Width 120mm

PROFILES / SECTIONS

AS per Customer Drawing

BILLETS

Up to 200 mm

INGOTS

AS per Specification

Contact Us

217/218, GIDC, Phase-II, Okha-Rajkot Road, Dared, Jamnagar, Gujarat, 361004, India
Phone :+918068091203