C31400 Leaded Commercial Bronze is a free machining brass with excellent electrical and thermal conductivity. The alloy is resistant to corrosion and contains 2% lead to impart free-cutting characteristics.
Door Knobs
Electrical Plug Type Connectors, Connectors for Wire and Cable
Nuts, Screws
Pickling Crates, Pickling Fixtures, Pickling Racks, Screw Machine Parts
| Cu% | Pb% | Zn% | Fe% | Ni% | P% |
|---|---|---|---|---|---|
| 87.50-90.50 | 1.30-2.50 | Rem. | 0.10 | 0.70 | N/A |
| Mechanical - H02 Half Hard Temper: 1/2" Dia. and Under | ||
|---|---|---|
| Tensile Strength, min | 50 ksi | 345 MPa |
| Yield Strength @ .5% ext under load min | 30 ksi | 205 MPa |
| Elongation in 2 in. or 50 mm min, % | 7 | |
| Brinell Hardness | N/A | |
| Machinability Rating | 80% | |
| Mechanical - H02 Half Hard Temper: Over 1/2" Dia. to 1" Incl. | ||
|---|---|---|
| Tensile Strength, min | 45 ksi | 310 MPa |
| Yield Strength @ .5% ext under load min | 27 ksi | 185 MPa |
| Elongation in 2 in. or 50 mm min, % | 10 | |
| Brinell Hardness, min | N/A | |
| Machinability Rating | 80% | |
| Mechanical - H02 Half Hard Temper: Over 1" Dia. | ||
|---|---|---|
| Tensile Strength, min | 40 ksi | 275 MPa |
| Yield Strength @ .5% ext under load min | 25 ksi | 170 |
| Elongation in 2 in. or 50 mm min, % | 12 | |
| Brinell Hardness, min | N/A | |
| Machinability Rating | 80 % | |
| Mechanical - H04 Hard Temper: 2" Dia. and Under | ||
|---|---|---|
| Tensile Strength, min | 53 ksi | 365 MPa |
| Yield Strength @ .5% ext under load min | 40 ksi | 275 MPa |
| Elongation in 2 in. or 50 mm min, % | 6 | |
| Brinell Hardness, min | N/A | |
| Machinability Rating | 80 % | |
| US Customary | Metric | |
|---|---|---|
| Melting Point-Liquidus | 1900 °F | 1038 °C |
| Melting Point-Solidus | 1850 °F | 1010 °C |
| Density | 0.319 lb/in 3 @ 68 °F | 8.83 gm/cm 3 @ 20 °C |
| Specific Gravity | 8.83 | 8.83 |
| Electrical Resistivity | 24.70 ohms-cmil/ft @ 68 °F | 4.11 microhm-cm @ 20 °C |
| Electrical Conductivity | 42% IACS @ 68 °F | 0.246 MegaSiemens/cm @ 20 °C |
| Thermal Conductivity | 104 Btu/sq ft/ft hr/°F @ 68 °F | 180 W/m @ 20 °C |
| Coefficient of Thermal Expansion | 10.2 ⋅ 10-6 per °F (68-572 °F) | 17.6 ⋅ 10-6 per °C (20-300 °C) |
| Specific Heat Capacity | 0.09 Btu/lb/°F @ 68 °F | 377.1 J/kg @293 °C |
| Modulus of Elasticity in Tension | 17000 ksi | 117212 MPa |
| Magnetic Permeability | 6400 ksi | 44127 MPa |
| Joining Technique | Suitability |
|---|---|
| Soldering | Excellent |
| Brazing | Good |
| Oxyacetylene Welding | Not Recommended |
| Gas Shielded Arc Welding | Not Recommended |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Not Recommended |
| Seam Weld | Not Recommended |
| Butt Weld | Fair |
| Capacity for being Cold Worked | Good |
| Capacity for being Hot Worked | Poor |
