Silver is a very ductile and malleable (slightly harder than gold) monovalent coinage metal with a brilliant white metallic luster that can take a high degree of polish. It has the highest electrical conductivity of all metals, even higher than copper.
With chromate tarnish resistant treatment
No chromate tarnish resistant treatment / Standard thickness of 0.00050" (500 u") minimum unless otherwise specified
AASTM B 700
99.9% silver min.
99.0% silver min.
98.0% silver min.
Bright by the use of brighteners
Bright by the use of mechanical or chem polishing
Semibright by the use of addition agents
No chromate tarnish resistant treatment
With Chromate tarnish resistant treatment 1 um min. (40 u") for short term shelf life solderability 2.5 um min. (100 u") for contact connectors having limited wear 5 um min. (200 u") for thermocompression bonding 10 um min. (400 u") for thermocompression bonding and die attachment for semiconductors 20 um min. (800 um") for high quality domestic flatware >= 40 um (1588 u) where very severe ware resistance is required