Chemical Composition% Maximum unless shown as range or minimum | Copper (1) | Aluminium | Antimony | Iron | Lead | Nickel (2) | Phosphorus (3) | Silicon | Sulphur | Tin | Zinc | Min/Max | 84.0-86.0 | 0.005 | 0.25 | 0.30 | 4.0-6.0 | 1.0 | 0.05 | 0.005 | 0.08 | 4.0-6.0 | 4.0-6.0 | Nominal | 85.0 | – | – | – | 5.0 | – | – | – | – | 5.0 | 5.0 |
(2) Nickel value includes Cobalt (3) For continuous castings, phosphorus shall be 1.5% maximum Note: Copper + sum of named elements, 99.3% minimum Applicable SpecificationsProduct | Specification | | AMS | ASME | ASTM | FEDERAL | MILITARY | SAE | | Centrifugal | 4855 | | B271 | | | J461, J462 | | Continuous | | | B505 | | | J461, J462 | Fittings | | B16.15, B16.18, B16.23, B16.32, SB62, B16.26 | B62 | WW-P-460 | | | Flanges | | B16.24, SB62 | B62 | | | | Ingot | | | B30 | | | | Precision | | | | | MIL-C-11866 | | Sand | 4855 | SB62 | B584, B62 | | | J461, J462 | Unions | | | | WW-U-516 | | | Valves | | | | | MIL-V-18436 | |
Fabrication PropertiesJoining Technique | Suitability | Soldering | Excellent | Brazing | Good | Oxyacetylene Welding | Not Recommended | Gas Shielded Arc Welding | Not Recommended | Coated Metal Arc Welding | Fair | Machinability Rating | 84 |
Mechanical PropertiesMeasured at Room Temperature 68°F (20°C) Temper | Cold Work | Typical/Min | Temperature | Tensile Strength | Yield Strength (0.5% ext under load) | Elongation | Brinell Hardness | Fatigue Strength at 108 cycles | Izod Impact Strength | % | | °C | MPa | MPa | % | | MPa | J | | M02 | 0 | Minimum | 20 | 207 | 97 | 20 | – | – | 0.0 | | M07 | 0 | Minimum | 20 | 248 | 131 | 15 | – | – | 0.0 | | M01 | 0 | Minimum | 20 | 205 | 97 | 20 | – | – | 0.0 | | M01 | 0 | Typical | 20 | 255 | 117 | 30 | 60 | 76 | 14.0 |
Physical Properties| Property | Imperial Units | Metric Units | Density | 0.318 lb/in3 @ 68°F | 8.83 g/cm³ @ 20°C | Specific Gravity | 8.83 | 8.83 | | | | Melting Point (Liquidus) | 1850°F | 1010°C | Melting Point (Solidus) | 1570°F | 854°C | | | | Electrical Resistivity | 69.1 ohms-cmil/ft @ 68°F | 11.49 micro-ohm-cm @ 20°C | Electrical Conductivity | 15 %IACS @ 68°F | 0.087 MegaSiemens/cm @ 20°C | | | | Specific Heat | 0.09 Btu/lb/°F @ 68°F | 376.0 J/kg . °K @ 293°K | Mean Coefficient of Expansion | 10.0 x 10-6 per °F (68-392°F) | 18.0 x 10-6 / °C @ 20°C (20-200°C) | Thermal Conductivity | 41.6 BTU . ft/(hr.ft2.°F) @ 68°F | 72 W / m . °K @ 20°C | | | | Modulus of Elasticity (Tension) | 13,500 ksi | 93,100 MPa | Magnetic Permeability | 1.0 | 1.0 |
Typical Uses for Leaded Gunmetal Architecture: Ornamental Fixtures Building: Heating Equipment, Lightning Protection, Trowels for Cement Working, Cooling Equipment Electrical: Switches, Electrical Equipment, Electrical Hardware Fasteners: Large Hold Down Screws Industrial: Pressure Blocks for Steel Industry, Pump Parts, Transducer Housings, Valve Bodies for the Water Meter Industry, Valves for the Water Meter Industry, Pump Fixtures, Impellers, Valve Bodies, Pumps, Bushings, Furnaces, Pumps, Low-Pressure Valves, Small Gears, Bearings, Air Actuators, Handles for Dental Equipment, Couplings, Valves, Printing Presses, Valve Bodies, Valves, Rings, Bearing Segments for Steel Industry Marine: Marine Products, Parts for Boats Plumbing: Faucets, Pipe Fittings, Fixtures |
