Copper Based Alloys
| Copper Based Alloys: to BS 1400 |
| Grade |
Type |
|
|
Typical Hardness HB |
Elongation (%) |
| Aluminium Bronze |
AB1 |
550 |
200 |
130 |
18 |
| Aluminium Bronze |
AB2 |
650 |
280 |
150 |
12 |
| Gunmetal |
G1 |
270 |
130 |
85 |
16 |
| Gunmetal |
LG2 |
230 |
110 |
65 |
10 |
| Gunmetal |
LG4 |
240 |
130 |
70 |
12 |
| Phosphor Bronze |
PB1 |
270 |
170 |
80 |
10 |
| Leaded Phosphor Bronze |
LPB1 |
190 |
80 |
70 |
3 |
| Lead Bronze |
LB2 |
220 |
110 |
65 |
5 |
| Silicon Brass |
SCB3 |
180 |
70 |
45 |
12 |
| High Tensile Brass |
HTB1 |
480 |
200 |
110 |
18 |
Castable Copper-based alloys are very versatile to the engineering designer and offer a number of benefits over other metals. Good corrosion resistance being noble in the comparative electrochemical series, couple with bio-fouling resistance, mean that the application range can vary from plumbing fixtures, impellers, propellers and pumps to bearings, valves and building products such as the AATi stair nosing treads.
