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Silver Plating
- Matte to very bright finish
- Good corrosion resistance
- Tarnishes easily
- Variable hardness
- Excellent solderability
- Low electrical resistance
- Excellent lubricity and smear
Silver is used in electrical applications because of its excellent conductivity. Although its corrosion resistance is inferior to gold, it serves as an economical coating on electrical conductors designed to operate at higher current in less critical applications. Silver is also used as a bearing surface.
Nu-Metal Finishing offers Certificate of Conformance to Federal Specification QQ-S-365 for all types and grades:
# Type I Matte
# Type II Semi-bright
# Type III Bright
# Grade A Chromate conversion to prevent tarnish
# Grade B No supplementary treatment
For more information on Nu-Metal Finishing's silver plating processes, contact us at 1.800.303.1050 or email us today.
Specification Summary
QQ-S-365
covers electrolytic silver plating on various metals.
Sample
callout:
Silver Plate per QQ-S-365, Type II, Grade A, 400 µin
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Finish Type
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Type I
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Type II
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Type III
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Matte
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Semi-Bright
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Bright
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Tarnish Treatment
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Grade A
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Grade B
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None
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Chromate
Conversion
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Thickness
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Specified
directly (in mils, µm or µin).
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ASTM B
700
covers electrolytic silver plating on various metals.
Sample
callout:
Silver per ASTM B 700, Type II, Grade A, Class S, 400
µin
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Silver Purity
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Type I
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Type II
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Type III
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99.9%
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99.0%
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98.0%
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Finish Type
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Grade A
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Grade B
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Grade C
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Grade D
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Matte
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Bright
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Bright
Polished
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Semi-bright
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Tarnish Treatment
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Class N
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Class S
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None
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Chromate
Conversion
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Thickness
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Specified
directly (in mils, µm or µin).
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Nu-Metal
offers these processes with or without CoC.
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