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Copper Alloy No. C36000

Free Cutting Brass , ASTM B16 CDA 360

Chemical Composition % by weight

Copper Lead Iron Zinc
61.5 Nominal 2.5 Minimum .35 Maximum 35.4 Nominal

Applications

Hardware: Gears and pinions 

Industrial: Automatic high speed screw machine parts

Mechanical Properties

Typical  for 1" rod half hard temper (20%)

Hardness* Rockwell B Scales 78
Tensile Strength** KSI 58
Yield Strength** KSI 45
Elongation** % in 2 inch 25

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

Physical Properties

Thermal Conductivity BTU/ (sq ft-ft-hr-F) 67
Specific Heat BTU/lb/F @ 68F .09
Thermal Expansion Per F from 68 F to 572 F .0000114
Density lb/cu in @ 68 F .307
Electrical Conductivity* (Annealed) % IACS @ 68 F 26
Modulus of Elasticity KSI 14,000

*Volume basis

Fabrication Properties

Capacity for being cold worked Poor
Capacity for being hot formed Fair
Hot forgeability rating (forging brass =100) N/A
Hot working temperature 1300-1450 F or 700-800 C
Annealing temperature 800-1100 F or 425-600 C
Machinability rating (Free Cutting Brass=100) 100
Suitability for being joined by: Soldering/Excellent
Brazing/Good
Oxyacetylene Welding/Not Recommended
Gas Shielded Arc Welding/Not Recommended
Coated Metal Arc Welding/Not Recommended
Resistance Welding Spot/Not Recommended
Seam/Not Recommended
Butt/Fair

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.