Resistance welding machine electrodes, seam
welding wheels, electrical switch gear, electrode holder jaws, cable
connectors, current carrying arms and shafts, circuit breaker parts, arcing
and bridging parts, grid side rods in electron tubes, molds, spot
welding tips, flash welding electrodes, electrical and thermal conductors
requiring greater strength than copper, switch contacts.
Mechanical Properties
Typical for .500" rod solution
heat treated and aged (500C-3 hrs.)
Hardness*
Rockwell B Scales
70
Tensile Strength**
KSI
70
Yield Strength**
KSI
55
Elongation**
% in 2 inch
21
*Hardness conversions are approximate
**Test values are nominal approximations and depend on specimen
size and orientation.
Physical Properties
Thermal Conductivity
BTU/ (sq ft-ft-hr-F)
187
Specific Heat
BTU/lb/ºF @ 68F
.090
Thermal Expansion
Per °F from 68 F to 212 F
.0000098
Density
lb/cu in @ 68 F
.321
Electrical Conductivity* (Annealed)
% IACS @ 68 F
80
Modulus of Elasticity
KSI
17,000
**Volume basis
Fabrication Properties
Capacity for being cold worked
Excellent
Capacity for being hot formed
Good
Hot forgeability rating (forging brass=100)
80
Hot working temperature
1500-1700 F or 800-925 C
Machinability rating (Free Cutting
Brass=100)
20
Suitability for being joined by:
Soldering/Good
Brazing/Good
Oxyacetylene Welding/Not Recommended
Gas Shielded Arc Welding/Good
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.
