Patent ID: 11913091
Assignee: METALLO BELGIUM
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 0:
1. A metal composition comprising, on a dry weight basis,
at least 6.0% wt and at most 30.0% wt of lead;
at least 70.0% wt and at most 91% wt of tin;
at least 95.0% wt and at most 99.0% wt of lead and tin together;
at least 0.75% wt and at most 5.00% wt of silver;
at least 0.24% wt of antimony; and
further comprising, on the dry weight basis, at least one of:
at least 0.05% wt and at most 0.5% wt of arsenic;
at least 0.05% wt and at most 0.6% wt of copper;
at least 0.0030% wt and at most 0.0500% wt of nickel;
at least 0.0010% wt and at most 0.40% wt of bismuth;
at most 1.0% wt of iron; or
at least 0.0005% wt of gold;
the balance being impurities.