Gold

Gold is a good conductor of heat and electricity, and is not affected by air and most reagents. Heat, moisture, oxygen, and most corrosive agents have very little chemical effect on gold, making it well-suited for use in a variety of industries.

Specifications

MIL-G-45204 & MIL-DTL-45204
	Type I	99.7% gold min. (Grade A, B or C)
	Type II	99.0% gold min. (Grade B, C or D)
	Type III	99.9% gold min. (Grade A only)
ASTM B 488
	Type 1	99.9% gold min. (Grade A only)
	Type 2	99.7% gold min. (Grades A, B and C)
	Type 3	99.0% gold min. (Grades C and D)
	Code A	Knoop 90 max.
	Code B	Knoop 90-200
	Code C	Knoop 130-200
	Class X	Where X is minimum thickness requirement in micrometers.

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Materials

Copper Alloy (Non Ferrous)
	BeCu
	Brass
	Phosphorous
	TeCu
	Copper
Nickel Alloy (Ferrous)
	Carbon Steel
	Leaded Steel
	Stainless Steel
	Kovar
	Invar
	Nickel
	Spring Steel
	Molybdenum
	Elkonite