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C83800

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Continuous Cast

Red brass alloys such as C838 are typically utilized in plumbing applications. The most widely used alloy in this family is C84400 semi-leaded red brass, known for its reasonable cost with good machining and casting properties. The lead content ensures pressure tightness. Red brass is also used as a cost-effective material for low-load bearings.

C83800 SPEC SHEET CONCAST LINE CARD

C83800

Product Description: Leaded 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

Builders Hardware: hardware
Electrical: electrical components, switches
Industrial: air/gas/water fittings, bushings, pump fixtures, railroad catenary fittings, valves
Plumbing: plumbing fixtures

Similar or Equivalent Specification

CDA ASTM SAE AMS Federal Military Other
C83800 B505
B505M
B271
B271M
B584		 J461
J462		   WW-U-516   Hydraulic Bronze

Chemical Composition

Cu%1 Pb% Sn% Zn% Fe% P% Ni%1,2 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.
Note: Single values represent maximums.
82.00-
83.80		 5.00-
7.00		 3.30-
4.20		 5.00-
8.00		  
0.30		  
1.50		  
1.00		  
0.005		  
0.08		  
0.25		  
0.005

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in3 at 68 °F)
C83800 90 0.312

Mechanical Properties

Mechanical Properties according to ASTM B505/B505M-18
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  
30 207 15 97 16 60

Physical Properties

Physical Properties provided by CDA
  US Customary Metric
Melting Point - Liquidus 1840 °F 1004 °C
Melting Point - Solidus 1550 °F 843 °C
Density 0.312 lb/in3 at 68 °F 8.64 gm/cm3 at 20 °C
Specific Gravity 8.64 8.64
Electrical Conductivity 15% IACS at 68 °F 0.087 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 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 13300 ksi 91700 MPa
Magnetic Permeability 1 1

Fabrication Properties

Fabrication Properties provided by CDA
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.   **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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