C85700

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SPECIFICATION CROSS-REFERENCE CHART

Cast

This group of alloys is typically found in plumbing applications. The most widely used alloy in this family is C84400 Leaded red brass is known for reasonable cost with good machining and casting properties. The lead content ensures pressure tightness. Red brass is also used for low-cost bearing materials under low loads.

Info

Product Description:. Leaded Naval Brass
Solids: 1/2" to 13" OD
Tubes: 1 1/8" to 9" OD
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

Typical Uses

Builders Hardware: door hardware for prisons, ornamental hardware, window hardware
Consumer: musical instruments
Industrial: mechanical components where aesthetics are important
Marine: ship trim, marine hardware, bushings and bearings
Plumbing: fittings, flanges

Similar or Equivalent Specification

CDA ASTM ASARCON SAE AMS Federal Military Other
C85700 B505
B505M
      QQ-C-390, A1;
QQ-B-621, CLASS A
MIL-C-15345, ALLOY 3 Leaded Yellow Brass

Chemical Composition

Cu%1 Pb% Sn% Zn% Fe% Ni%2 Al% Si%
Chemical Composition according to ASTM B505/B505M-18

1In determining Cu min., Cu may be calculated as Cu + Ni.   2Ni value includes Co.
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/cu in at 68° F)
C85700 80 0.304

Mechanical Properties

Mechanical Properties according to ASTM B505/B505M-18
Tensile Strength, min Yield Strength, at .5% Extension Under Load, min Elongation, in 2in. or 50mm min Brinell Hardness Remarks
Ksi MPa Ksi MPa % typical BHN  
40 276 14 97 15 75 (500 kg)

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 · ft/(hr · ft2 · °F) at 68° F 83.9 W/m at 20° C
Coefficient of Thermal Expansion 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 293° C
Modulus of Elasticity in Tension 14000 ksi 87000 MPa
Magnetic Permeability 1 1

Fabrication Properties

Fabrication Properties provided by CDA
Joining Technique Suitability
Soldering Good
Brazing Fair
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Not Recommended
Coated Metal Arc Welding Not Recommended

Thermal Properties

Thermal Properties provided by CDA
Treatment Temp./Time - US Temp./Time - SI
Stress Temperature 500 260
Solution Minimum    
Solution Maximum    
Solution Time 0.0  
Solution Medium    
Precipitation Value    
Precipitation Time    
Precipitation Medium    
Annealing Minimum    
Annealing Maximum    
Annealing Time    
Hot Works Minimum    
Hot Works Maximum    

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