+ + C83600 Copper Alloy CDA 836 Bronze alloy Leaded Tin bronze Alloy 836 LG2 Gunmetal Alloy
C83600 Copper Alloy CDA 836 Bronze alloy

Copper Alloy No. C83600

Leaded Red Brass Alloy , CDA 836 , SAE 40

Chemical Composition % by weight

Element Nominal Minimum Maximum
Aluminum - - .005
Antimony - - .25
Copper 85 84 86
Iron - - .30
Lead 5 4 6
Nickel - - 1
Phosphorus - - .05
Silicon - - .005
Sulfur - - .08
Tin 5 4 6
Zinc 5 4 6

Applications

Pump components, small gears, water impellers and housings, marine fittings, flanges, low pressure valves and fittings, pipe fittings, plumbing fixtures, ornamental fixtures

Mechanical Properties

M07 - As Continuous Cast

Hardness* Brinell Hardness (500 kg load) 60
Tensile Strength** KSI 36
Yield Strength ** KSI (0.5% Ext. under load) 19
Elongation** % in 2 inch 15

**Test values are nominal approximations and depend on specimen size and orientation.

Physical Properties

Thermal Conductivity BTU/ (sq ft-ft-hr-F) 41.6
Specific Heat BTU/lb/ºF @ 68F .09
Thermal Expansion Per °F from 68 F to 400 F .000010
Density lb/cu in @ 68 F .318
Electrical Conductivity % IACS @ 68 F 15
Modulus of Elasticity KSI 13,500

Fabrication Practices

Stress relieving temperature 500 F or 260 C
Time at temperature 1 hour per inch of section thickness
Responds to heat treatment No
Machinability rating (Free Cutting Brass=100) 84
Suitability for being joined by: Soldering/Excellent
  Brazing/Good*
  Oxyacetylene Welding/Not Recommended
  Gas Shielded Arc Welding/Not Recommended
  Coated Metal Arc Welding/Fair