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

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

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

*Since brazing is performed at temperatures within the hot-short range, strain must be avoided during the brazing and cooling of this alloy.

The values listed above represent reasonable approximations suitable for general engineering use. Due to commercial variations in composition and to manufacturing limitations, they should not be used for specification purposes. See applicable A.S.T.M. specification references.