Lead ingots produced to ASTM B29-03 specifications for refined pure at 99.97% and pure lead at 99.94%
Lead ingots that tweak the standard purity specifications to include very low sulfur at controlled levels
Purity specifications like those listed above would be used in radiation shielding applications for interlocking lead bricks or nuclear quality pours as well as extrusion lines that require a very consistent lead quality to achieve reliable repeat values.
Pure Lead Specifications:
Elements Specification Limits(%)
Antimony(Sb) <0.0010
Copper(Cu) < 0.0010
Bishmuth(Bi) < 0.0150
Silver(Ag) < 0.0040
Tin(Sn) < 0.0010
Iron(Fe) < 0.0010
Calcium(Ca) < 0.0005
Nickel(Ni) < 0.0005
Cobal(Co) < 0.0005
Cadmium(Cd) < 0.0005
Selenium(Se) < 0.0005
Sulphur(S) < 0.0005
Zinc(Zn) < 0.0010
Aluminium(Al) < 0.0010
Tellurium(Te) < 0.0010
Manganese(Mn) Nill
Lead(Pb) 99.98+