C84800

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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 Semi-Red Brass
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

Typical Uses

Builders Hardware: stops, washers, general hardware, hardware
Industrial: fittings, low-pressure valves, gas line fittings, air line fittings
Plumbing: cocks, faucets, plumbing fittings, plumbing fixtures

Similar or Equivalent Specification

CDA ASTM ASARCON SAE AMS Federal Military Other
C84800 B505
B505M
          Plumbing Goods Brass

Chemical Composition

Cu%1 Pb% Sn% Zn% Fe% P%2 Ni%3 Al% S% Sb% Si%
Chemical Composition according to ASTM B505/B505M-18

1In determining Cu min., Cu may be calculated as Cu + Ni.   2For continuous castings, P shall be 1.5%, max.   3Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.3% min. Single values represent maximums.
75.00-
77.00
5.50-
7.00
2.00-
3.00
13.00-
17.00
 
0.40
 
0.02
 
1.00
 
0.005
 
0.08
 
0.25
 
0.005

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/cu in at 68° F)
C84800 90 0.310

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  
30 207 15 103 16 55 (500 kg)

Physical Properties

Physical Properties provided by CDA
  US Customary Metric
Melting Point - Liquidus 1750° F 954° C
Melting Point - Solidus 1530° F 832° C
Density 0.31 lb/in3 at 68° F 8.58 gm/cm3 at 20° C
Specific Gravity 8.58 8.58
Electrical Conductivity 16.4% IACS at 68° F 0.095 MegaSiemens/cm at 20° C
Thermal Conductivity 41.6 Btu · ft/(hr · ft2 · °F) at 68° F 72 W/m at 20° C
Coefficient of Thermal Expansion 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 293° C
Modulus of Elasticity in Tension 15000 ksi 103400 MPa
Magnetic Permeability 1 1

Fabrication Properties

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

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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