NAME OF ALLOY

AVERAGE PERCENTAGE OF EACH METAL

Antimonial Leads

Lead (72%), antimony (18%), tin (10%)

Bronze

Copper (92%), tin (6%), zinc (2%)

Brass

Copper (70%), zinc (30%)

Duralium

Aluminium (95%), copper (4%), manganese (1%)

Lead Free Solders

Tin (+95%), Silver (0.3 to 4%), Copper (0.1 to 1%), lead <0.1%

Solders

Tin (up to 63% balance with 0.3 to 3%  antimony), lead (balance)

Pewter

Tin (85%), copper (7%), bismuth (6%), antimony (2%)

Sterling silver

Silver (92.5%), copper (7.5%)

Silver Solders

Copper (+/-50%), silver (up to 55%), balance tin and/or zinc

22 carat gold

Gold (92%), silver (4.9%), copper (3.1%)

18 carat gold

Gold (75%), silver (15%), copper (10%)