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C85700

Stocked alloy specs

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Reference guide

Stocked size schedules

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Continuous cast

The properties of yellow brasses are well-suited for architectural trim, decorative hardware and plumbing fixtures requiring low to moderate strength. Their pleasing light color can be polished to a high luster.

C85700 spec sheet Standard products

C85700

Product description: Leaded yellow brass
Solids: 1/2" to 13" O.D.
Tubes: 1 1/8" to 9" O.D.*
Rectangles: Up to 15"
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: door hardware for prisons, ornamental hardware, window hardware
Consumer: musical instruments
Industrial: mechanical components where aesthetics are important
Marine: marine hardware, ship trim
Plumbing: fittings, flanges

Similar or equivalent specification

CDA ASTM SAE AMS Federal Military Other
C85700 B505
B505M
B271
B271M
B176		          

Chemical composition

Cu%1 Pb% Sn% Zn% Fe% Ni%1,2 Al% 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: Single values represent maximums.
58.00-
64.00		 0.80-
1.50		 0.50-
1.50		 32.00-
40.00		  
0.70		  
1.00		  
0.80		  
0.05

Machinability

Copper alloy UNS No. Machinability rating Density (lb/in3 at 68 °F)
C85700 80 0.304

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 14 97 15 75

Physical properties

Physical properties provided by CDA
  US Customary Metric
Melting point - liquidus 1725 °F 941 °C
Melting point - solidus 1675 °F 913 °C
Density 0.304 lb/in3 at 68 °F 8.41 gm/cm3 at 20 °C
Specific gravity 8.41 8.41
Electrical conductivity 22% IACS at 68 °F 0.128 MegaSiemens/cm at 20 °C
Thermal conductivity 48.5 Btu/sq ft/ft hr/°F at 68 °F 83.9 W/m at 20 °C
Coefficient of thermal expansion 68-572 12 · 10-6 per °F (68-572 °F) 20.7 · 10-6 per °C (20-300 °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 87000 MPa
Magnetic Permeability 1 1

Fabrication properties

Fabrication properties provided by CDA
Technique Suitability
Soldering Good
Brazing Fair
Oxyacetylene welding Not recommended
Gas shielded arc welding Not recommended
Coated metal arc welding Not recommended
Machinability rating 80

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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