Copper Alloys
Overview of Copper Casting Alloys
Comparison Table of Casting Characteristics of Major Copper Casting Alloys
|
|
LG2 |
PB2 |
|
Tensile Strength (N/mm2) |
200-270 |
220-310 |
|
Elongation (%) |
13-25 |
5-15 |
|
Brinell Hardness |
65-75 |
75-110 |
|
Density (g/cm3) |
8.5 |
8.8 |
|
Freezing range (°C approx.) |
1010-854 |
1000-831 |
|
Thermal Con (cal/cm2/cm/°C @ 25°C) |
(71) |
(45) |
|
Electrical Con (% copper std. @ 20°C) |
15 |
9 |
|
Machinability |
E |
G |
|
Corrosion Resistance |
E |
E |
|
Electro Plating Suitability |
F |
F |
|
Non Spark |
Yes |
Yes |
|
Casting Characteristics - Sand |
E |
E |
|
Casting Characteristics - Gravity |
F |
F |
|
Casting Characteristics - High Pressure |
U |
U |
|
Material Cost (pence/100 cc - July 1996) |
118 |
173 |
E = Excellent
G = Good
F = Fair
P = Poor
U = Unsuitable
Notes for Designers of Non-Ferrous Castings
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