Copper 6905/6925 b 51/55 b
Tin 18875/19075 b 75/125 b
Lead 1840/1885 c 7/3 c
Zinc 1755/1775 c 19 /19 c
Aluminium 2565/2575 c 49/45 c
Nickel 18150/ 18350 c 130/80 c