C84400

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SPECIFICATION CROSS-REFERENCE CHART

Cast

This group of alloys is typically found in plumbing applications. C84400 is the most widely used alloy in the semi-leaded red brass family, known for its 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" 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

Typical Uses

Architecture: ornamental fixtures
Builders Hardware: dead bolt locks, cases for dead bolt locks, door hardware for prisons, hardware
Building: cooling equipment, heating equipment
Consumer: musical instruments
Electrical: electrical equipment
Industrial: valve bodies for the water industry, valves for water meters, valves, valve seat, low-pressure fittings, pump fixtures
Marine: marine hardware, boat parts, nuts for transducers
Plumbing: pipe fittings, fixtures

Similar or Equivalent Specification

CDA ASTM Asarcon SAE AMS Federal Military Other
C84400 B505
B505M
B145-5A
37     QQ-C-390, B2;
QQ-B-1005, COMP 11
MIL-B11553, COMP 11 Valve Metal

Chemical Composition

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

1In determining Cu min., Cu may be calculated as Cu + Ni.   2Ni value includes Co.
Single values represent maximums.
78.00-
82.00
6.00-
8.00
2.30-
3.50
7.00-
10.00
 
0.40
 
0.02
 
1.00
 
0.005
 
0.08
 
0.25
 
0.005

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in3 at 68 °F)
C84400 90 0.314

Mechanical Properties

Mechanical Properties according to ASTM B505/B505M-18
Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, in 2in. or 50mm min Brinell Hardness (500 kg load) Remarks
ksi MPa ksi MPa % typical BHN  
30 207 15 103 16 55

Physical Properties

Physical Properties provided by CDA
  US Customary Metric
Melting Point - Liquidus 1840 °F 1004 °C
Melting Point - Solidus 1549 °F 843 °C
Density 0.314 lb/in3 at 68 °F 8.69 gm/cm3 at 20 °C
Specific Gravity 8.69 8.69
Electrical Conductivity 16.4% IACS at 68 °F 0.095 MegaSiemens/cm at 20 °C
Thermal Conductivity 41.8 Btu/sq ft/ft hr/°F at 68 °F 72.4 W/m at 20 °C
Coefficient of Thermal Expansion 68-572 10 · 10-6 per °F (68-572 °F) 17.3 · 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 13000 ksi 89600 MPa
Magnetic Permeability 1 1

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 Fair
Machinability Rating 90

Thermal Properties

Thermal Properties provided by CDA

*Temperature is measured in Fahrenheit.   **Time is measured in minutes.
Treatment Value* Time**
Stress Relief 500  
Solution Treatment   0

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