- CAST PRODUCTS
- LEAD-FREE PRODUCTS
- WROUGHT PRODUCTS
The lead content in these alloys is between 7 percent and 30 percent. High-leaded tin bronzes are free cutting and retain favorable thermal conductivity and good lubricity due to the lead content. The high-leaded tin bronzes are ideal for bearing applications where there could be a loss of the lubrication boundary. These alloys perform excellent in unforgiving environments where foreign matter may be present, such as dirt and other foreign materials. The high-leaded alloys are able to envelope foreign matter due to their malleable nature and, in doing so, protect the wear surface of a mating part such as a shaft.
Product Description: High-Leaded Tin Bronze
Solids: 1/2" to 13" OD
Tubes: 1" to 16" OD
Rectangles: Up to 20"
Standard Lengths: 144"
Shape/Form: semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar
Automotive: backing for Babbitt lined bearings
Industrial: mild acidic applications, corrosion-resistant castings, high-speed/light-load bushings, bearings, pump impellers
QQ-B-1005, COMP 14
|MIL-B-11553, COMP 14|
1In determining Cu min., Cu may be calculated as Cu + Ni. 2Ni value includes Co. 3For continuous castings, P shall be 1.5%, max.
Note: Cu + Sum of Named Elements, 99.0% min. Single values represent maximums.
|Tensile Strength (min)||Yield Strength (at .5% extension under load min)||Elongation (in 2in. or 50mm min, %)||Brinell Hardness (min)||Remarks|
|Melting Point - Liquidus||1830° F||999° C|
|Melting Point - Solidus||1570° F||854° C|
|Incipient Melting||600° F||316° C|
|Density||0.320 lb/in3 at 68° F||8.86 gm/cm3 at 20° C|
|Electrical Resistivity||68.40 ohms-cmil/ft at 68° F||11.36 microhm-cm at 20° C|
|Electrical Conductivity||15% IACS at 68° F||0.088 MegaSiemens/cm at 20 C|
|Thermal Conductivity||40.70 Btu · ft/(hr · ft2 · °F) at 68° F||70.4 W/m · °K at 20° C|
|Coefficient of Thermal Expansion||9.9 · 10-6 per °F (68°-392° F)||17.1 · 10-6 per °C (20°-200° C)|
|Specific Heat Capacity||0.090 Btu/lb/°F at 68° F||377.1 J/kg at 293° C|
|Modulus of Elasticity in Tension||14500 ksi||10000 MPa|
|Oxyacetylene Welding||Not Recommended|
|Gas Shielded Arc Welding||Not Recommended|
|Coated Metal Arc Welding||Not Recommended|
|Treatment||Temp./Time - US||Temp./Time - SI|
|Hot Works Minimum|
|Hot Works Maximum|