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C92300

Stocked alloy specs

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Reference guide

Stocked size schedules

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Continuous cast

Lead improves machinability in C923 leaded tin bronze but does not materially affect Mechanical properties. This alloy is a free-cutting version of tin bronze, having similar properties and uses.

C92300 spec sheet Standard products

C92300

Product description:. Leaded tin bronze
Solids: 1/2" to 13" O.D.
Tubes: 1" to 16" O.D.*
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

 *Consult mill for wall thickness

Typical uses

Builders hardware: structural castings
Fasteners: nuts
Industrial: bearings, bushings, gears, high pressure hydraulic equipment, piston rings, pump impellers, pump parts, valve bodies
Plumbing: high-pressure steam equipment

Similar or equivalent specification

CDA ASTM SAE AMS Federal Military Other
C92300 B505
B505M
B143-2B		 621
J461
J462		   QQ-C-390, D3;
QQ-B-1005, Comp 6		 MIL-B-11553, Comp 6  

Chemical composition

Cu%1 Pb% Sn% Zn% Fe% P% Ni%1,2 Al% S% Sb% Si%
Chemical composition according to ASTM B505/B505M-23

1In determining Cu min., Cu may be calculated as Cu + Ni.   2Ni value includes Co.
Note: Cu + sum of named elements, 99.3% min. Single values represent maximums.
85.00-
89.00		 0.30-
1.00		 7.50-
9.00		 2.50-
5.00		  
0.25		  
1.50		  
1.00		  
0.005		  
0.05		  
0.25		  
0.005

Machinability

Copper alloy UNS No. Machinability rating Density (lb/in3 at 68° F)
C92300 42 0.317

Mechanical properties

Mechanical properties according to ASTM B505/B505M-23
Tensile strength, min Yield strength, at 0.5% extension under load, min Elongation, in 2 in. or 50 mm min Brinell hardness (500 kg load) Remarks
ksi MPa ksi MPa % typical BHN  
40 276 19 131 16 70  

Physical properties

Physical properties provided by CDA
  US Customary Metric
Melting point - liquidus 1830 °F 999 °C
Melting point - solidus 1570 °F 854 °C
Density 0.317 lb/in3 at 68 °F 8.77 gm/cm3 at 20 °C
Specific gravity 8.77 8.77
Electrical conductivity 12% IACS at 68 °F 0.07 MegaSiemens/cm at 20 °C
Thermal conductivity 43.2 Btu/sq ft/ft hr/°F at 68 °F 74.8 W/m at 20 °C
Coefficient of thermal expansion 68-392 10 · 10-6 per °F (68-392 °F) 17.3 · 10-6 per °C (20-200 °C)
Specific heat capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 20 °C
Modulus of elasticity in tension 14000 ksi 96500 MPa
Incipient Melting 600 °F 316 °C

Fabrication properties

Fabrication properties provided by CDA
*Since brazing is performed within the hot-short range, strain must be avoided during brazing and cooling.
Technique Suitability
Soldering Excellent
Brazing* Good
Oxyacetylene welding Not recommended
Gas shielded arc welding Not recommended
Coated metal arc welding Not recommended
Machinability rating 42

Thermal properties

Thermal properties provided by CDA
Temperature is measured in fahrenheit.   **For stress relief, Solution treatment and annealing - time is measured in hours/inch of thickness. For precipitation heat treatment - time is measured in hours.
Treatment Value* Time**
Stress relief 500  
Solution treatment   0

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