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Copper Alloy Rods

Copper Alloy Rods
Copper Alloy Rods
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Product Code : 45
Product Description

Counted among prominent manufacturer and supplier, we bring forth the wide range of Bronze Rods that are manufactured by using  high grade bronze in strict compliance with the set industry guidelines.  These rods find their wide usage in various applications like electrical, hardware, industrial as well as in fasteners applications. In order to fulfill the diverse requirements of our clients, we offer these Bronze Rods in different specifications and can be customized as per their requirements.     



  • Accurate dimensions
  • Robust construction
  • Resistant to corrosion

Bronze Rods

C 314 Commercial Bronze

Bronze Family: Leaded Commercial Bronze

C 314 Commercial Bronze is a METALCO standard alloy and finds use in hardware applications, electrical applications, as well as fasteners and industrial applications. Uses include various electrical connectors, screws and nuts, pickling crates, fixtures and racks. It is also common in screw machine applications.

Technical specifications:

Specification :
Leaded Commercial Bronze ASTM B 140 C31400

Equivalent Specifications
  • ASTM B140
  • B140M (Copper Alloy UNS No. 31400)

Reference Specifications


Equivalent specifications are verified and updated annually.
Specifications shown are current as of May 4, 2010.

Chemical Composition (%)
Cu Pb Fe Ni Zn
87.5 to 90.5 1.3 to 2.5 0.10 max. 0.7 max. Remainder
Sum of all named elements = 99.6%

Mechanical Properties
Minimum Tensile Properties, English/Metric
Temper HO2 half hard
Nominal Diameter Tensile Strength Yield Strength Elongation
Inches/mm ksi MPa ksi MPa %
½" and under/ 12 mm 50 345 30 205 7
Over ½ to 1"/12-25 mm incl 45 310 27 185 10
Over 1.00"/25 mm 40 275 25 170 12
Temper HO4 hard
Nominal Diameter Tensile Strength Yield Strength Elongation
Inches/mm ksi MPa ksi MPa %
2" and under/50 mm 53 365 40 275 6

Machinability Rating 80 (Free Cutting Brass = 100)

Physical Properties




Melting Point Liquiedus

1900‚° F

1038‚° C

Melting Point Solidus

1850‚° F

1010‚° C


0.319 lb/in3 at 68‚° F

8.83 gm/cm3 @ 20‚° C

Specific Gravity



Electrical Resistivity (Annealed)

24.70 ohms-cmil/ft @ 68‚° F

4.11 microhm-cm @ 20‚° C

Electrical Conductivity (Annealed)

42%IACS @ 68‚° F

0.246 MegaSiemens/cm @ 20‚° C

Thermal Conductivity

104 Btu ‚ ft/(hr ‚ft2‚°F) @ 68‚° F

180.0 W/m‚°K @20‚° C

Coefficient of Thermal Expansion

10.2 ‚ 10-6 per ‚°F (68-572‚° F)

18.4 ‚10-6 per ‚°C (20-300‚° C)

Specific Heat Capacity

0.090 Btu/lb/‚°F @ 68‚° F

377.1 J/kg ‚°K @293‚° K

Modulus of Elasticity in Tension

17,000 ksi

117,000 MPa

Physical Properties provided by CDA

Fabrication Practices
Soldering Excellent Capacity for Being Cold Worked Good
Brazing Good Capacity for Being Hot Formed Poor
Oxyacetylene Welding Not Recommended  
Gas Shielded Arc Welding Not Recommended Annealing Temperature  Minimum 800° F or 427° C
Coated Metal Arc Welding Not Recommended Annealing Temperature Maximum 1200° F or 649° C
Resistance Welding  Spot Not Recommended  
Resistance Welding Seam Not Recommended
Resistance Welding Butt Fair


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