Brass Copper Castings India
C93600 High Leaded Tin Bronze


Copper Alloy No. C93600
High Leaded Tin Bronze CDA 936 , 81-7-12 , Modified SAE 64
Chemical Composition % by weight
Element Nominal Minimum Maximum
Aluminum - - .005
Copper 81 79 83
Iron - - .20
Lead 12 11 13
Nickel - - 1
Phosphorus - - .15
Silicon - - .005
Sulfur - - .08
Tin 7 6 8
Zinc - - 1

Applications

Bearings and bushings 

Mechanical Properties

M07 - As Continuous Cast

Hardness* Brinell Hardness (500 kg load) 65
Tensile Strength** KSI 35
Yield Strength ** KSI (0.5% Ext. under load) 21
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) N/A
Specific Heat BTU/lb/ºF @ 68F .09
Thermal Expansion Per °F from 68 F to 392 F N/A
Density lb/cu in @ 68 F .325
Electrical Conductivity* (Annealed) % IACS @ 68 F 11
Modulus of Elasticity KSI 14,000

*Volume basis

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) 70
Suitability for being joined by: Soldering/Good
Brazing/Good*
Oxyacetylene Welding/Not Recommended
Gas Shielded Arc Welding/Not Recommended
Coated Metal Arc Welding/Not Recommended